Update README.

See also:
https://learn.microsoft.com/en-us/ef/core/saving/concurrency?tabs=data-annotations

EntityFrameworkCore.API/Controllers/TeamsController.cs

@@ -0,0 +1,126 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using EntityFrameworkCore.Data;
+using EntityFrameworkCore.Domain;
+
+namespace EntityFrameworkCore.API.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class TeamsController : ControllerBase
+    {
+        private readonly DeadBallZoneLeagueDbContext _context;
+
+        public TeamsController(DeadBallZoneLeagueDbContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Teams
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<TeamDto>>> GetTeams()
+        {
+            if (_context.Teams == null)
+            {
+                return NotFound();
+            }
+
+            var teams = await _context.Teams
+                .Select(t => new TeamDto
+                {
+                    Id = t.Id,
+                    Name = t.Name,
+                    CoachName = t.Coach.Name
+                })
+                .ToListAsync();
+            return teams;
+        }
+
+        // GET: api/Teams/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Team>> GetTeam(int id)
+        {
+            if (_context.Teams == null)
+            {
+                return NotFound();
+            }
+
+            // using λ for fun here.
+            var team = await _context.Teams
+                .Include(λ => λ.Coach)
+                .Include(λ => λ.League)
+                .FirstOrDefaultAsync(λ => λ.Id == id);
+
+            if (team == null)
+            {
+                return NotFound();
+            }
+
+            return team;
+        }
+
+        // PUT: api/Teams/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutTeam(int id, Team team)
+        {
+            if (id != team.Id)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(team).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!TeamExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Teams
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Team>> PostTeam(Team team)
+        {
+            _context.Teams.Add(team);
+            await _context.SaveChangesAsync();
+
+            return CreatedAtAction("GetTeam", new { id = team.Id }, team);
+        }
+
+        // DELETE: api/Teams/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteTeam(int id)
+        {
+            if (_context.Teams == null)
+            {
+                return NotFound();
+            }
+            await _context.Teams.Where(t => t.Id == id).ExecuteDeleteAsync();
+            return NoContent();
+        }
+
+        private bool TeamExists(int id)
+        {
+            return _context.Teams.Any(e => e.Id == id);
+        }
+    }
+}

EntityFrameworkCore.API/EntityFrameworkCore.API.csproj

@@ -8,6 +8,19 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="9.0.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="../EntityFrameworkCore.Data/EntityFrameworkCore.Data.csproj" />
+  </ItemGroup>
 </Project>

EntityFrameworkCore.API/Models/TeamDto.cs

@@ -0,0 +1,8 @@
+namespace EntityFrameworkCore.API;
+
+public class TeamDto
+{
+  public int Id { get; set; }
+  public string Name { get; set; }
+  public string CoachName { get; set; }
+}

EntityFrameworkCore.API/Program.cs

@@ -1,9 +1,42 @@
+using EntityFrameworkCore.Data;
+using Microsoft.EntityFrameworkCore;
+using System.Text.Json.Serialization;
+
+using EntityFrameworkCore.API.Controllers;
+
 var builder = WebApplication.CreateBuilder(args);
 
+builder.Services.AddControllers().AddJsonOptions(options =>
+{
+    // IgnoreCycles prevents "System.Text.Json.JsonException: A possible object cycle was detected".
+    options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles;
+});
+
 // Add services to the container.
 // Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
 builder.Services.AddOpenApi();
 
+var sqliteDatabaseName = builder.Configuration.GetConnectionString("SqliteDatabaseName");
+var folder = Environment.SpecialFolder.LocalApplicationData;
+var path = Environment.GetFolderPath(folder);
+var dbPath = Path.Combine(path, sqliteDatabaseName);
+var connectionString = $"Data Source={dbPath}";
+
+builder.Services.AddDbContext<DeadBallZoneLeagueDbContext>(options => {
+    options.UseSqlite(connectionString, sqliteOptions => {
+        sqliteOptions.CommandTimeout(30); // 30 second timeout.
+    })
+    .UseQueryTrackingBehavior(QueryTrackingBehavior.NoTracking)
+    .LogTo(Console.WriteLine, LogLevel.Information);
+
+    if (!builder.Environment.IsProduction())
+    {
+         // Do not allow this in Production.
+        options.EnableSensitiveDataLogging();
+        options.EnableDetailedErrors();
+    }
+});
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.
@@ -14,28 +47,6 @@ if (app.Environment.IsDevelopment())
 
 app.UseHttpsRedirection();
 
-var summaries = new[]
+app.MapControllers();
-{
-    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-};
-
-app.MapGet("/weatherforecast", () =>
-{
-    var forecast =  Enumerable.Range(1, 5).Select(index =>
-        new WeatherForecast
-        (
-            DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
-            Random.Shared.Next(-20, 55),
-            summaries[Random.Shared.Next(summaries.Length)]
-        ))
-        .ToArray();
-    return forecast;
-})
-.WithName("GetWeatherForecast");
 
 app.Run();
-
-record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
-{
-    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-}

EntityFrameworkCore.API/appsettings.json

@@ -5,5 +5,8 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "SqliteDatabaseName": "DeadBallZoneLeague_EFCore.db"
+  }
 }

EntityFrameworkCore.Console/Program.cs

@@ -3,7 +3,13 @@ using EntityFrameworkCore.Domain;
 using Microsoft.Data.Sqlite;
 using Microsoft.EntityFrameworkCore;
 
-using var context = new DeadBallZoneLeagueDbContext();
+
+var folder = Environment.SpecialFolder.LocalApplicationData;
+var path = Environment.GetFolderPath(folder);
+var dbPath = Path.Combine(path, "DeadBallZoneLeague_EFCore.db");
+var optionsBuilder = new DbContextOptionsBuilder<DeadBallZoneLeagueDbContext>();
+optionsBuilder.UseSqlite($"Data Source={dbPath}");
+using var context = new DeadBallZoneLeagueDbContext(optionsBuilder.Options);
 // context.Database.Migrate(); // Can be used to automatically migrate on run.
 context.Database.EnsureCreated();
 
@@ -16,6 +22,90 @@ context.Database.EnsureCreated();
 // Rather than raise: "System.InvalidOperationException: Sequence contains no elements."
 // var firstCoach = await context.Coaches.FirstOrDefaultAsync();
 
+async Task SoftDeleteLeague()
+{
+  var league = context.Leagues.Find(1);
+  league.IsDeleted = true;
+
+  context.SaveChanges();
+
+  // This is rather cumbersome. Instead, use a query filter. See League configuration.
+  //var leagues = context.Leagues.Where(l => !l.IsDeleted).ToList();
+
+  // This now gets all leagues, with query filters applied.
+  var leagues = context.Leagues.ToList();
+
+  // You can also ignore them, if you want in a specific case.
+  leagues = context.Leagues.IgnoreQueryFilters().ToList();
+}
+
+async Task ConcurrencyCheckExample()
+{
+  var team = context.Teams.Find(1);
+  team.Name = "New name";
+
+  // To simulate a concurrency change, add a breakpoint and
+  // manually update the GUID in the database before SaveChangesAsync is called.
+  // See also: https://learn.microsoft.com/en-us/ef/core/saving/concurrency?tabs=data-annotations
+  try
+  {
+    await context.SaveChangesAsync();
+  }
+  catch (DbUpdateConcurrencyException ex)
+  {
+    Console.WriteLine(ex.Message);
+  }
+}
+
+async Task TransactionWithSavepoint()
+{
+  var transaction = context.Database.BeginTransaction();
+
+  var league = new League
+  {
+    Name = "Geosphere league"
+  };
+
+  context.Add(league);
+  context.SaveChanges();
+
+  transaction.CreateSavepoint("CreatedLeague");
+
+  var coach = new Coach
+  {
+    Name = "Brad Ironfist"
+  };
+
+  context.Add(coach);
+  context.SaveChanges();
+
+  var teams = new List<Team>
+  {
+    new Team
+    {
+      Name = "Dominators",
+      LeagueId = league.Id,
+      CoachId = coach.Id
+    }
+  };
+
+  context.AddRange(teams);
+  context.SaveChanges();
+
+  try
+  {
+    transaction.Commit();
+  }
+  catch (Exception)
+  {
+    // Rollback everything.
+    //transaction.Rollback();
+
+    // Or rollback to a specific save point.
+    transaction.RollbackToSavepoint("CreatedLeague");
+    throw;
+  }
+}
 
 async Task UserDefinedQuery()
 {

EntityFrameworkCore.Data/Configurations/LeagueConfiguration.cs

@@ -8,6 +8,10 @@ public class LeagueConfiguration : IEntityTypeConfiguration<League>
 {
   public void Configure(EntityTypeBuilder<League> builder)
   {
+    // This query filter will be always applied.
+    // Note that you should call HasQueryFilter only once, otherwise the filter is overwritten.
+    builder.HasQueryFilter(l => l.IsDeleted == false);
+
     builder.HasData(
       new League { Id = 1, Name = "Local League", CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33)},
       new League { Id = 2, Name = "National League", CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33)},

EntityFrameworkCore.Data/Configurations/TeamConfiguration.cs

@@ -10,6 +10,17 @@ public class TeamConfiguration : IEntityTypeConfiguration<Team>
   {
     builder.HasIndex(t => t.Name).IsUnique();
 
+    // example composite key configuration.
+    // builder.HasIndex(λ => new { λ.CoachId, λ.LeagueId }).IsUnique();
+
+    // SQL Server method to setup concurrency.
+    // builder.Property(λ => λ.Version).IsRowVersion();
+
+    // SQLite (and other) method to setup concurrency. See also BaseDomain model.
+    builder.Property(λ => λ.Version).IsConcurrencyToken();
+
+    builder.Property(λ => λ.Name).HasMaxLength(100).IsRequired();
+
     builder.HasMany(m => m.HomeMatches) // A team has many home matches.
       .WithOne(m => m.HomeTeam) // Mapped to the HomeTeam property.
       .HasForeignKey(m => m.HomeTeamId)

EntityFrameworkCore.Data/DeadBallZoneLeagueDbContext.cs

@@ -1,36 +1,26 @@
 using Microsoft.EntityFrameworkCore;
 
 using EntityFrameworkCore.Domain;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
 using System.Reflection;
+using Microsoft.EntityFrameworkCore.Design;
 
 namespace EntityFrameworkCore.Data;
 
 public class DeadBallZoneLeagueDbContext : DbContext
 {
-  private string DbPath;
+  public DeadBallZoneLeagueDbContext(DbContextOptions<DeadBallZoneLeagueDbContext> options) : base(options)
-  public DeadBallZoneLeagueDbContext()
   {
-    // In Ubuntu 24.04, the file is created here: /home/user/.local/share
+    // This constuctor allows it to accept the options set from other instances, such as in the API project.
-    var folder = Environment.SpecialFolder.LocalApplicationData;
-    var path = Environment.GetFolderPath(folder);
-    DbPath = Path.Combine(path, "DeadBallZoneLeague_EFCore.db");
   }
+
   public DbSet<Team> Teams { get; set; }
   public DbSet<Coach> Coaches { get; set; }
   public DbSet<League> Leagues { get; set; }
   public DbSet<Match> Matches { get; set; }
   public DbSet<TeamsAndLeaguesView> TeamsAndLeaguesView { get; set; }
 
-  protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
-  {
-    optionsBuilder.UseSqlite($"Data source={DbPath}")
-      // .UseQueryTrackingBehavior(QueryTrackingBehavior.NoTracking) // Do not use tracking, set globally on all queries.
-      .LogTo(Console.WriteLine, LogLevel.Information)
-      .EnableSensitiveDataLogging() // Do not allow this in Production.
-      .EnableDetailedErrors(); // Do not allow this in Production.
-  }
-
   protected override void OnModelCreating(ModelBuilder modelBuilder)
   {
     // modelBuilder.ApplyConfiguration(new TeamConfiguration());
@@ -52,5 +42,63 @@ public class DeadBallZoneLeagueDbContext : DbContext
       .HasName("GetEarliestMatch");
   }
 
+  // This is an example override for SQL Server:
+  // protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlServer("Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=FootballLeague_EfCore; Encrypt=true", sqlOptions => {
+  //               sqlOptions.EnableRetryOnFailure(maxRetryCount: 5,
+  //                   maxRetryDelay: TimeSpan.FromSeconds(5),
+  //                   errorNumbersToAdd: null);
+  //           });
+
+  protected override void ConfigureConventions(ModelConfigurationBuilder configurationBuilder)
+  {
+    // These apply to all the settings for all models.
+    configurationBuilder.Properties<string>().HaveMaxLength(100);
+    configurationBuilder.Properties<decimal>().HavePrecision(16, 2);
+  }
+
+  public override Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+  {
+    var entries = ChangeTracker.Entries<BaseDomainModel>().Where(
+      λ => λ.State == EntityState.Modified || λ.State == EntityState.Added
+    );
+    // Whenever a save is made to an entity, these fields are now automatically updated:
+    foreach (var entry in entries)
+    {
+      entry.Entity.ModifiedDate = DateTime.UtcNow;
+      entry.Entity.ModifiedBy = "Sample User 1";
+
+      if (entry.State == EntityState.Added)
+      {
+        entry.Entity.CreatedDate = DateTime.UtcNow;
+        entry.Entity.CreatedBy = "Sample User";
+      }
+
+      // Update the concurrency token.
+      entry.Entity.Version = Guid.NewGuid();
+    }
+    return base.SaveChangesAsync(cancellationToken);
+  }
+
   public DateTime GetEarliestTeamMatch(int teamId) => throw new NotImplementedException();
 }
+
+public class DeadBallZoneLeagueDbContextFactory : IDesignTimeDbContextFactory<DeadBallZoneLeagueDbContext>
+{
+  public DeadBallZoneLeagueDbContext CreateDbContext(string[] args)
+  {
+    var folder = Environment.SpecialFolder.LocalApplicationData;
+    var path = Environment.GetFolderPath(folder);
+
+    IConfigurationRoot configuration = new ConfigurationBuilder()
+      .SetBasePath(Directory.GetCurrentDirectory())
+      .AddJsonFile("appsettings.json")
+      .Build();
+
+    var dbPath = Path.Combine(path, configuration.GetConnectionString("SqliteDatabaseName"));
+
+    var optionsBuilder = new DbContextOptionsBuilder<DeadBallZoneLeagueDbContext>();
+    optionsBuilder.UseSqlite($"Data Source={dbPath}");
+
+    return new DeadBallZoneLeagueDbContext(optionsBuilder.Options);
+  }
+}

EntityFrameworkCore.Data/EntityFrameworkCore.Data.csproj

@@ -9,6 +9,9 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.3" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.3" />
   </ItemGroup>
 
   <ItemGroup>

EntityFrameworkCore.Data/Migrations/20250414192903_AddRestriction.Designer.cs

@@ -0,0 +1,506 @@
+// <auto-generated />
+using System;
+using EntityFrameworkCore.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    [DbContext(typeof(DeadBallZoneLeagueDbContext))]
+    [Migration("20250414192903_AddRestriction")]
+    partial class AddRestriction
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.3");
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Coaches");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Christian Southgate"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rob Mann"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Jon Curtis"
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Taylor"
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Steve Johnson"
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Dan Cook"
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Ken Jarvis"
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Kenny Suzuki"
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gordon Hall"
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "John O Dowd"
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Julian Widdows"
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Williams"
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Trevor Williams"
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Blake Deathray"
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rock Housebrick"
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Leagues");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Local League"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "National League"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Geosphere"
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Cyber war"
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("HomeTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("HomeTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("TicketPrice")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AwayTeamId");
+
+                    b.HasIndex("HomeTeamId");
+
+                    b.ToTable("Matches");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CoachId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("LeagueId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CoachId")
+                        .IsUnique();
+
+                    b.HasIndex("LeagueId");
+
+                    b.HasIndex("Name")
+                        .IsUnique();
+
+                    b.ToTable("Teams");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CoachId = 1,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Delhi"
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CoachId = 2,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Voodoo"
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CoachId = 3,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Penal X"
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CoachId = 4,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Tokyo"
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CoachId = 5,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Barcelona"
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CoachId = 6,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Manchester"
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CoachId = 7,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Bangkok"
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CoachId = 8,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Amsterdam"
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CoachId = 9,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Killaklowns"
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CoachId = 10,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Sol"
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CoachId = 11,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "DEC"
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CoachId = 12,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Leopards"
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CoachId = 13,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Harlequins"
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CoachId = 14,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gladiators"
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CoachId = 15,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Fiz-O"
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.TeamsAndLeaguesView", b =>
+                {
+                    b.Property<string>("LeagueName")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.ToTable((string)null);
+
+                    b.ToView("vw_TeamsAndLeagues", (string)null);
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "AwayTeam")
+                        .WithMany("AwayMatches")
+                        .HasForeignKey("AwayTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "HomeTeam")
+                        .WithMany("HomeMatches")
+                        .HasForeignKey("HomeTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("AwayTeam");
+
+                    b.Navigation("HomeTeam");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Coach", "Coach")
+                        .WithOne("Team")
+                        .HasForeignKey("EntityFrameworkCore.Domain.Team", "CoachId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.League", "League")
+                        .WithMany("Teams")
+                        .HasForeignKey("LeagueId");
+
+                    b.Navigation("Coach");
+
+                    b.Navigation("League");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Navigation("Team");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Navigation("Teams");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Navigation("AwayMatches");
+
+                    b.Navigation("HomeMatches");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/20250414192903_AddRestriction.cs

@@ -0,0 +1,38 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddRestriction : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Teams",
+                type: "TEXT",
+                maxLength: 100,
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Teams",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldMaxLength: 100);
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/20250414200332_AddConcurrencyCheckVersionToken.Designer.cs

@@ -0,0 +1,568 @@
+// <auto-generated />
+using System;
+using EntityFrameworkCore.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    [DbContext(typeof(DeadBallZoneLeagueDbContext))]
+    [Migration("20250414200332_AddConcurrencyCheckVersionToken")]
+    partial class AddConcurrencyCheckVersionToken
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.3");
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Coaches");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Christian Southgate",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rob Mann",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Jon Curtis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Taylor",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Steve Johnson",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Dan Cook",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Ken Jarvis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Kenny Suzuki",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gordon Hall",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "John O Dowd",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Julian Widdows",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Trevor Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Blake Deathray",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rock Housebrick",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Leagues");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Local League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "National League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Geosphere",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Cyber war",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("HomeTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("HomeTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("TicketPrice")
+                        .HasPrecision(16, 2)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AwayTeamId");
+
+                    b.HasIndex("HomeTeamId");
+
+                    b.ToTable("Matches");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CoachId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("LeagueId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CoachId")
+                        .IsUnique();
+
+                    b.HasIndex("LeagueId");
+
+                    b.HasIndex("Name")
+                        .IsUnique();
+
+                    b.ToTable("Teams");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CoachId = 1,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Delhi",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CoachId = 2,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Voodoo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CoachId = 3,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Penal X",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CoachId = 4,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Tokyo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CoachId = 5,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Barcelona",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CoachId = 6,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Manchester",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CoachId = 7,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Bangkok",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CoachId = 8,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Amsterdam",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CoachId = 9,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Killaklowns",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CoachId = 10,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Sol",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CoachId = 11,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "DEC",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CoachId = 12,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Leopards",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CoachId = 13,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Harlequins",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CoachId = 14,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gladiators",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CoachId = 15,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Fiz-O",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.TeamsAndLeaguesView", b =>
+                {
+                    b.Property<string>("LeagueName")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.ToTable((string)null);
+
+                    b.ToView("vw_TeamsAndLeagues", (string)null);
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "AwayTeam")
+                        .WithMany("AwayMatches")
+                        .HasForeignKey("AwayTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "HomeTeam")
+                        .WithMany("HomeMatches")
+                        .HasForeignKey("HomeTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("AwayTeam");
+
+                    b.Navigation("HomeTeam");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Coach", "Coach")
+                        .WithOne("Team")
+                        .HasForeignKey("EntityFrameworkCore.Domain.Team", "CoachId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.League", "League")
+                        .WithMany("Teams")
+                        .HasForeignKey("LeagueId");
+
+                    b.Navigation("Coach");
+
+                    b.Navigation("League");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Navigation("Team");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Navigation("Teams");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Navigation("AwayMatches");
+
+                    b.Navigation("HomeMatches");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/20250414200332_AddConcurrencyCheckVersionToken.cs

@@ -0,0 +1,301 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddConcurrencyCheckVersionToken : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Guid>(
+                name: "Version",
+                table: "Teams",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "Version",
+                table: "Matches",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "Version",
+                table: "Leagues",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "Version",
+                table: "Coaches",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 4,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 5,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 6,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 7,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 8,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 9,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 10,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 11,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 12,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 13,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 14,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Coaches",
+                keyColumn: "Id",
+                keyValue: 15,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 4,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 4,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 5,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 6,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 7,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 8,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 9,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 10,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 11,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 12,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 13,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 14,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.UpdateData(
+                table: "Teams",
+                keyColumn: "Id",
+                keyValue: 15,
+                column: "Version",
+                value: new Guid("00000000-0000-0000-0000-000000000000"));
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Version",
+                table: "Teams");
+
+            migrationBuilder.DropColumn(
+                name: "Version",
+                table: "Matches");
+
+            migrationBuilder.DropColumn(
+                name: "Version",
+                table: "Leagues");
+
+            migrationBuilder.DropColumn(
+                name: "Version",
+                table: "Coaches");
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/20250414201323_AddSoftDeleteFlagLeague.Designer.cs

@@ -0,0 +1,575 @@
+// <auto-generated />
+using System;
+using EntityFrameworkCore.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    [DbContext(typeof(DeadBallZoneLeagueDbContext))]
+    [Migration("20250414201323_AddSoftDeleteFlagLeague")]
+    partial class AddSoftDeleteFlagLeague
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.3");
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Coaches");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Christian Southgate",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rob Mann",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Jon Curtis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Taylor",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Steve Johnson",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Dan Cook",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Ken Jarvis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Kenny Suzuki",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gordon Hall",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "John O Dowd",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Julian Widdows",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Andy Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Trevor Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Blake Deathray",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Rock Housebrick",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Leagues");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Local League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "National League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Geosphere",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Cyber war",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("AwayTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("HomeTeamId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("HomeTeamScore")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("TicketPrice")
+                        .HasPrecision(16, 2)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AwayTeamId");
+
+                    b.HasIndex("HomeTeamId");
+
+                    b.ToTable("Matches");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("CoachId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("LeagueId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("ModifiedDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CoachId")
+                        .IsUnique();
+
+                    b.HasIndex("LeagueId");
+
+                    b.HasIndex("Name")
+                        .IsUnique();
+
+                    b.ToTable("Teams");
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            CoachId = 1,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Delhi",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 2,
+                            CoachId = 2,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Voodoo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 3,
+                            CoachId = 3,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Penal X",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 4,
+                            CoachId = 4,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Tokyo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 5,
+                            CoachId = 5,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Barcelona",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 6,
+                            CoachId = 6,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 2,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Manchester",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 7,
+                            CoachId = 7,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Bangkok",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 8,
+                            CoachId = 8,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 3,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Neo Amsterdam",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 9,
+                            CoachId = 9,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Killaklowns",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 10,
+                            CoachId = 10,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Sol",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 11,
+                            CoachId = 11,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "DEC",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 12,
+                            CoachId = 12,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Leopards",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 13,
+                            CoachId = 13,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Harlequins",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 14,
+                            CoachId = 14,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 4,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Gladiators",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        },
+                        new
+                        {
+                            Id = 15,
+                            CoachId = 15,
+                            CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            LeagueId = 1,
+                            ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                            Name = "Fiz-O",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
+                        });
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.TeamsAndLeaguesView", b =>
+                {
+                    b.Property<string>("LeagueName")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.ToTable((string)null);
+
+                    b.ToView("vw_TeamsAndLeagues", (string)null);
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "AwayTeam")
+                        .WithMany("AwayMatches")
+                        .HasForeignKey("AwayTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.Team", "HomeTeam")
+                        .WithMany("HomeMatches")
+                        .HasForeignKey("HomeTeamId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("AwayTeam");
+
+                    b.Navigation("HomeTeam");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.HasOne("EntityFrameworkCore.Domain.Coach", "Coach")
+                        .WithOne("Team")
+                        .HasForeignKey("EntityFrameworkCore.Domain.Team", "CoachId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("EntityFrameworkCore.Domain.League", "League")
+                        .WithMany("Teams")
+                        .HasForeignKey("LeagueId");
+
+                    b.Navigation("Coach");
+
+                    b.Navigation("League");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Coach", b =>
+                {
+                    b.Navigation("Team");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.League", b =>
+                {
+                    b.Navigation("Teams");
+                });
+
+            modelBuilder.Entity("EntityFrameworkCore.Domain.Team", b =>
+                {
+                    b.Navigation("AwayMatches");
+
+                    b.Navigation("HomeMatches");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/20250414201323_AddSoftDeleteFlagLeague.cs

@@ -0,0 +1,57 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace EntityFrameworkCore.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddSoftDeleteFlagLeague : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsDeleted",
+                table: "Leagues",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 1,
+                column: "IsDeleted",
+                value: false);
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 2,
+                column: "IsDeleted",
+                value: false);
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 3,
+                column: "IsDeleted",
+                value: false);
+
+            migrationBuilder.UpdateData(
+                table: "Leagues",
+                keyColumn: "Id",
+                keyValue: 4,
+                column: "IsDeleted",
+                value: false);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsDeleted",
+                table: "Leagues");
+        }
+    }
+}

EntityFrameworkCore.Data/Migrations/DeadBallZoneLeagueDbContextModelSnapshot.cs

@@ -24,12 +24,14 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("CreatedDate")
                         .HasColumnType("TEXT");
 
                     b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("ModifiedDate")
@@ -37,6 +39,11 @@ namespace EntityFrameworkCore.Data.Migrations
 
                     b.Property<string>("Name")
                         .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -49,105 +56,120 @@ namespace EntityFrameworkCore.Data.Migrations
                             Id = 1,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Christian Southgate"
+                            Name = "Christian Southgate",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 2,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Rob Mann"
+                            Name = "Rob Mann",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 3,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Jon Curtis"
+                            Name = "Jon Curtis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 4,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Andy Taylor"
+                            Name = "Andy Taylor",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 5,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Steve Johnson"
+                            Name = "Steve Johnson",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 6,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Dan Cook"
+                            Name = "Dan Cook",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 7,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Ken Jarvis"
+                            Name = "Ken Jarvis",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 8,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Kenny Suzuki"
+                            Name = "Kenny Suzuki",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 9,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Gordon Hall"
+                            Name = "Gordon Hall",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 10,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "John O Dowd"
+                            Name = "John O Dowd",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 11,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Julian Widdows"
+                            Name = "Julian Widdows",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 12,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Andy Williams"
+                            Name = "Andy Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 13,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Trevor Williams"
+                            Name = "Trevor Williams",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 14,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Blake Deathray"
+                            Name = "Blake Deathray",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 15,
                             CreatedDate = new DateTime(2025, 4, 7, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Rock Housebrick"
+                            Name = "Rock Housebrick",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         });
                 });
 
@@ -158,18 +180,28 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("CreatedDate")
                         .HasColumnType("TEXT");
 
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("INTEGER");
+
                     b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("ModifiedDate")
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -181,29 +213,37 @@ namespace EntityFrameworkCore.Data.Migrations
                         {
                             Id = 1,
                             CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Local League"
+                            Name = "Local League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 2,
                             CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "National League"
+                            Name = "National League",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 3,
                             CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Geosphere"
+                            Name = "Geosphere",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
                             Id = 4,
                             CreatedDate = new DateTime(2025, 4, 6, 17, 7, 27, 33, DateTimeKind.Unspecified),
+                            IsDeleted = false,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Cyber war"
+                            Name = "Cyber war",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         });
                 });
 
@@ -220,6 +260,7 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("CreatedDate")
@@ -235,12 +276,18 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("ModifiedDate")
                         .HasColumnType("TEXT");
 
                     b.Property<decimal>("TicketPrice")
+                        .HasPrecision(16, 2)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -262,6 +309,7 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("CreatedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("CreatedDate")
@@ -271,12 +319,19 @@ namespace EntityFrameworkCore.Data.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("ModifiedBy")
+                        .HasMaxLength(100)
                         .HasColumnType("TEXT");
 
                     b.Property<DateTime>("ModifiedDate")
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("Version")
+                        .IsConcurrencyToken()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -299,7 +354,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 2,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Delhi"
+                            Name = "Neo Delhi",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -308,7 +364,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Voodoo"
+                            Name = "Voodoo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -317,7 +374,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Penal X"
+                            Name = "Penal X",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -326,7 +384,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 3,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Tokyo"
+                            Name = "Neo Tokyo",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -335,7 +394,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 2,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Barcelona"
+                            Name = "Neo Barcelona",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -344,7 +404,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 2,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Manchester"
+                            Name = "Neo Manchester",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -353,7 +414,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 3,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Bangkok"
+                            Name = "Neo Bangkok",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -362,7 +424,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 3,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Neo Amsterdam"
+                            Name = "Neo Amsterdam",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -371,7 +434,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Killaklowns"
+                            Name = "Killaklowns",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -380,7 +444,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Sol"
+                            Name = "Sol",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -389,7 +454,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 4,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "DEC"
+                            Name = "DEC",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -398,7 +464,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Leopards"
+                            Name = "Leopards",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -407,7 +474,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Harlequins"
+                            Name = "Harlequins",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -416,7 +484,8 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 4,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Gladiators"
+                            Name = "Gladiators",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         },
                         new
                         {
@@ -425,10 +494,26 @@ namespace EntityFrameworkCore.Data.Migrations
                             CreatedDate = new DateTime(2025, 4, 4, 17, 7, 27, 33, DateTimeKind.Unspecified),
                             LeagueId = 1,
                             ModifiedDate = new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
-                            Name = "Fiz-O"
+                            Name = "Fiz-O",
+                            Version = new Guid("00000000-0000-0000-0000-000000000000")
                         });
                 });
 
+            modelBuilder.Entity("EntityFrameworkCore.Domain.TeamsAndLeaguesView", b =>
+                {
+                    b.Property<string>("LeagueName")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(100)
+                        .HasColumnType("TEXT");
+
+                    b.ToTable((string)null);
+
+                    b.ToView("vw_TeamsAndLeagues", (string)null);
+                });
+
             modelBuilder.Entity("EntityFrameworkCore.Domain.Match", b =>
                 {
                     b.HasOne("EntityFrameworkCore.Domain.Team", "AwayTeam")

EntityFrameworkCore.Domain/BaseDomainModel.cs

@@ -1,4 +1,6 @@
-namespace EntityFrameworkCore.Domain;
+using System.ComponentModel.DataAnnotations;
+
+namespace EntityFrameworkCore.Domain;
 // Since C#11, you do not need to wrap in accolades anymore.
 public abstract class BaseDomainModel
 {
@@ -7,4 +9,12 @@ public abstract class BaseDomainModel
   public DateTime ModifiedDate { get; set;}
   public string? CreatedBy { get; set; }
   public string? ModifiedBy { get; set; }
+
+  // SQL Server method to setup concurrency column.
+  // [Timestamp]
+  // public byte[] Version { get; set; }
+
+  // SQLite (and other) method to setup concurrency column.
+  [ConcurrencyCheck]
+  public Guid Version { get; set; }
 }

EntityFrameworkCore.Domain/Coach.cs

@@ -1,7 +1,11 @@
-namespace EntityFrameworkCore.Domain;
+using System.ComponentModel.DataAnnotations;
+
+namespace EntityFrameworkCore.Domain;
 // Since C#11, you do not need to wrap in accolades anymore.
 public class Coach : BaseDomainModel
 {
+  [MaxLength(100)]
+  [Required]
   public string Name { get; set; } // Strings are automatically become VARCHAR database types.
   public Team? Team { get; set; }
 }

EntityFrameworkCore.Domain/League.cs

@@ -3,5 +3,6 @@
 public class League : BaseDomainModel
 {
   public string? Name { get; set; }
+  public bool IsDeleted { get; set; }
   public List<Team> Teams { get; set; } = new List<Team>() { };
 }

README.md

@@ -61,6 +61,12 @@ Rollback to specific migration, use `list` command to see (Pending) changes:
 
 To re-apply changes again, simply do a `database update` again. Beware that data will be lost.
 
+When this error appears:
+
+`Unable to create a 'DbContext' of type 'RuntimeType'. The exception 'The configuration file 'appsettings.json' was not found and is not optional.`
+
+Then you should either provide an `appsettings.json` file in the project, or simply change the startup project.
+
 ## Links
 
 * [Entity Framework - Database providers](https://learn.microsoft.com/en-us/ef/core/providers/?tabs=dotnet-core-cli)
@@ -84,6 +90,24 @@ A list of installed NuGet packages in this application.
 
 Note that the [Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3) is used for Powershell commands used in the Package Manager Console for Visual Studio and that [Microsoft.EntityFrameworkCore.Design](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Design/9.0.3) is used for cross-platform command tools.
 
+### API project
+
+[Microsoft.VisualStudio.Web.CodeGeneration.Design](https://www.nuget.org/packages/Microsoft.VisualStudio.Web.CodeGeneration.Design/9.0.0)
+
+* `dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design --version 9.0.0`
+
+[Microsoft.EntityFrameworkCore.Design](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Design/9.0.3)
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Design --version 9.0.3`
+
+[Microsoft.EntityFrameworkCore.Sqlite](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Sqlite/9.0.3)
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 9.0.3`
+
+[Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3) *Required for aspnet-codegenerator cli tool.*
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Tools --version 9.0.3`
+
 ### Console project
 
 [Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3)
@@ -100,6 +124,18 @@ Note that the [Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packag
 
 * `dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 9.0.3`
 
+[Microsoft.Extensions.Configuration](https://www.nuget.org/packages/Microsoft.Extensions.Configuration/9.0.3)
+
+* `dotnet add package Microsoft.Extensions.Configuration --version 9.0.3`
+
+[Microsoft.Extensions.Configuration.FileExtensions](https://www.nuget.org/packages/Microsoft.Extensions.Configuration.FileExtensions/9.0.3)
+
+* `dotnet add package Microsoft.Extensions.Configuration.FileExtensions --version 9.0.3`
+
+[Microsoft.Extensions.Configuration.Json](https://www.nuget.org/packages/Microsoft.Extensions.Configuration.Json/9.0.3)
+
+* `dotnet add package Microsoft.Extensions.Configuration.Json --version 9.0.3`
+
 ## Tips for efficient querying
 
 * Use indexes.
@@ -151,4 +187,39 @@ This is the least recommended method of loading data. It requires the [Microsoft
 * A **Team** has one **Coach** (1:1)
 * **Matches** are played by many **Teams** (M:M)
 
-You can use [EF Core Power Tools](https://marketplace.visualstudio.com/items?itemName=ErikEJ.EFCorePowerTools) to create diagrams.
+You can use [EF Core Power Tools](https://marketplace.visualstudio.com/items?itemName=ErikEJ.EFCorePowerTools) to create diagrams.
+
+## ASP.NET Core with Entity Framework Core
+
+A web application will make connection to the database on demand, which is a scoped connection. When not using the database, the web application is in a disconnected state.
+You cannot create a new context in a file, because a new connection needs to be established every time and also closed, when the database is no longer needed. Also, *no tracking* is recommended, because multiple people can manipulate data.
+
+An Inversion of Control (IoC) container will be used to handle dependancy injection for the DbContext. And also the DbContext will need a constructor with parameters to initialize itself properly.
+
+## Scaffolding
+
+### Scaffolding tool
+
+[ASP.NET Core code generator tool](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/tools/dotnet-aspnet-codegenerator?view=aspnetcore-9.0).
+
+* `dotnet tool install -g dotnet-aspnet-codegenerator` or, if already installed: `update`
+
+To run this tool:
+
+* `dotnet aspnet-codegenerator controller -name TeamsController -async -api -m Team -dc DeadBallZoneLeagueDbContext -outDir Controllers -dbProvider sqlite`
+
+Note that an issue may arise, related to this: https://github.com/dotnet/Scaffolding/issues/3145
+
+## API
+
+Since .NET 9, the OpenAPI standard has been defined. To view documentation of our API, Swagger UI can be installed separately.
+
+See also: https://devblogs.microsoft.com/dotnet/dotnet9-openapi/
+
+* [https://swagger.io/tools/swagger-ui/](https://swagger.io/tools/swagger-ui/)
+
+* [Swagger UI installation](https://github.com/swagger-api/swagger-ui/blob/HEAD/docs/usage/installation.md)
+
+Or use:
+
+* [install-swagger-tooling](https://learn.microsoft.com/en-us/aspnet/core/tutorials/first-web-api?view=aspnetcore-9.0&tabs=visual-studio-code#install-swagger-tooling)