63 lines
1.7 KiB
C#
63 lines
1.7 KiB
C#
using EntityFrameworkCore.Data;
|
|
using Microsoft.EntityFrameworkCore;
|
|
|
|
using var context = new DeadBallZoneLeagueDbContext();
|
|
|
|
//PrintTeams();
|
|
|
|
var teamOne = await context.Teams.FirstAsync(t => t.TeamId == 1);
|
|
var teamTwo = await context.Teams.FirstAsync(t => t.TeamId == 2);
|
|
var teamThree = await context.Teams.SingleAsync(t => t.TeamId == 3);
|
|
var teamFour = await context.Teams.SingleOrDefaultAsync(t => t.TeamId == 3);
|
|
|
|
// There is no entry for coaches yet, this function will provide a null to coach.
|
|
// Rather than raise: "System.InvalidOperationException: Sequence contains no elements."
|
|
var coach = await context.Coaches.FirstOrDefaultAsync();
|
|
|
|
await GetAllTeamsQuerySyntax("Neo");
|
|
|
|
async Task GetAllTeamsQuerySyntax(string searchTerm)
|
|
{
|
|
var teams = await (
|
|
from team in context.Teams
|
|
where EF.Functions.Like(team.Name, $"%{searchTerm}%")
|
|
select team)
|
|
.ToListAsync();
|
|
foreach (var team in teams)
|
|
{
|
|
Console.WriteLine(team.Name);
|
|
}
|
|
}
|
|
|
|
async Task PrintTeams()
|
|
{
|
|
var teams = await context.Teams.ToListAsync();
|
|
|
|
foreach (var team in teams)
|
|
{
|
|
Console.WriteLine(team.Name);
|
|
}
|
|
}
|
|
|
|
async Task PrintFilteredTeams()
|
|
{
|
|
Console.WriteLine("Enter search term: ");
|
|
var searchTerm = Console.ReadLine();
|
|
|
|
// var filteredTeams = await context.Teams.Where(t => t.Name.Contains(searchTerm)).ToListAsync();
|
|
var filteredTeams = await context.Teams.Where(t => EF.Functions.Like(t.Name, $"%{searchTerm}%")).ToListAsync();
|
|
foreach (var team in filteredTeams)
|
|
{
|
|
Console.WriteLine(team.Name);
|
|
}
|
|
}
|
|
|
|
async Task PrintTeamById(int id)
|
|
{
|
|
// Selection based on finding the Primary Key.
|
|
var teamBasedOnId = await context.Teams.FindAsync(id);
|
|
if (teamBasedOnId != null)
|
|
{
|
|
Console.WriteLine(teamBasedOnId.Name);
|
|
}
|
|
} |