using System.ComponentModel.DataAnnotations; using Microsoft.EntityFrameworkCore; namespace PF3.Models; [PrimaryKey(nameof(ProductId), nameof(EffectId))] public class ProductEffect { [Required] public Product? Product { get; set; } [Required] public int ProductId { get; set; } public Effect? Effect { get; set; } [Required] public int EffectId { get; set; } }