sanstudent/Api/Database/SanStudentContext.cs

using Api.Database.Entities;
using Microsoft.EntityFrameworkCore;

namespace Api.Database;

public class SanStudentContext : DbContext
{
    public SanStudentContext(DbContextOptions<SanStudentContext> options) : base(options) { }
    
    public required virtual DbSet<Specialization> Specializations { get; set; }
    public required virtual DbSet<Subject> Subjects { get; set; }
    public virtual required DbSet<Season> Seasons { get; set; }
    public required virtual DbSet<Student> Students { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Student>(entity =>
        {
            entity.HasIndex(e => e.AlbumNumber).IsUnique();
        });
    }
}