Check/MagicCarpetProject/MagicCarpetDatabase/MagicCarpetDbContext.cs

using MagicCarpetContracts.Infrastructure;
using MagicCarpetDatabase.Models;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MagicCarpetDatabase;

internal class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase) : DbContext
{
    private readonly IConfigurationDatabase? _configurationDatabase = configurationDatabase;

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseNpgsql(_configurationDatabase?.ConnectionString, o => o.SetPostgresVersion(12, 2));
        base.OnConfiguring(optionsBuilder);
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<Client>().HasIndex(x => x.PhoneNumber).IsUnique();

        modelBuilder.Entity<Tour>().HasIndex(x => x.TourName).IsUnique();

        modelBuilder.Entity<Post>()
            .HasIndex(e => new { e.PostName, e.IsActual })
            .IsUnique()
            .HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");

        modelBuilder.Entity<Post>()
            .HasIndex(e => new { e.PostId, e.IsActual })
            .IsUnique()
            .HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");

        modelBuilder.Entity<SaleTour>().HasKey(x => new { x.SaleId, x.TourId });
    }

    public DbSet<Client> Clients { get; set; }

    public DbSet<Post> Posts { get; set; }

    public DbSet<Tour> Tours { get; set; }

    public DbSet<TourHistory> TourHistories { get; set; }

    public DbSet<Salary> Salaries { get; set; }

    public DbSet<Sale> Sales { get; set; }

    public DbSet<SaleTour> SaleTours { get; set; }

    public DbSet<Employee> Employees { get; set; }
}