Expedience/Expedience.Api/Db/ExpedienceContext.cs

using Expedience.Api.Db.Models;
using Microsoft.EntityFrameworkCore;

namespace Expedience.Api.Db
{
    public class ExpedienceContext : DbContext
    {
        public ExpedienceContext(DbContextOptions<ExpedienceContext> dbContextOptions) : base(dbContextOptions)
        {
        }

        public DbSet<DutyCompletionResult> DutyCompletionResults { get; set; }

        public DbSet<DutyMember> DutyMembers { get; set; }

        public DbSet<User> Users { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<DutyCompletionResult>(cfg =>
            {
                cfg.ToTable(nameof(DutyCompletionResult));
                cfg.HasKey(e => e.Id);
            });

            modelBuilder.Entity<DutyMember>(cfg =>
            {
                cfg.ToTable(nameof(DutyMember));

                cfg.HasKey(e => new { e.UploadId, e.GroupNumber, e.MemberNumber });

                cfg.HasOne(o => o.DutyCompletionResult)
                   .WithMany(o => o.DutyMembers)
                   .HasForeignKey(o => o.UploadId);
            });

            modelBuilder.Entity<User>(cfg =>
            {
                cfg.ToTable(nameof(User));

                cfg.Property(e => e.UserId)
                    .UseIdentityAlwaysColumn()
                    .IsRequired()
                    .ValueGeneratedOnAdd();

                cfg.HasKey(e => new { e.UserId });
            });

            base.OnModelCreating(modelBuilder);
        }
    }
}