using Microsoft.EntityFrameworkCore; using Microsoft.EntityFrameworkCore.Metadata.Builders; namespace TOOHUCardAPI.Data.Models.ModelBuilders { public class CardLevelModelBuilder : IModelBuilder { public ModelBuilder BuildModel(ModelBuilder builder) { EntityTypeBuilder cardLevelBuilder = builder.Entity(); cardLevelBuilder.HasKey(cl => new {cl.UserSteamId, cl.CardItemCode}); return builder; } } }