survey-webapp/SurveyBackend/SurveyBackend.Infrastructure/Data/ApplicationDbContext.cs

using Microsoft.EntityFrameworkCore;
using SurveyBackend.Core.Models;
using SurveyLib.Core.Models;
using SurveyLib.Infrastructure.EFCore.Data;

namespace SurveyBackend.Infrastructure.Data;

public class ApplicationDbContext : SurveyDbContext
{
    public DbSet<User> Users { get; set; }
    public DbSet<Group> Groups { get; set; }

    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }

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

        modelBuilder.Entity<Survey>()
            .HasOne<User>()
            .WithMany()
            .HasForeignKey(s => s.CreatedBy)
            .OnDelete(DeleteBehavior.SetNull);

        modelBuilder.Entity<Completion>()
            .HasOne<User>()
            .WithMany()
            .HasForeignKey(c => c.CompletedBy)
            .OnDelete(DeleteBehavior.SetNull);
    }
}