IM_NEW/GroupService.Infrastructure/Configs/GroupJoinRequestConfig.cs

using GroupService.Domain.Entities;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace GroupService.Infrastructure.Configs
{
    public class GroupJoinRequestConfig : IEntityTypeConfiguration<GroupJoinRequest>
    {
        public void Configure(EntityTypeBuilder<GroupJoinRequest> builder)
        {
            builder.ToTable("group_join_requests");
            builder.HasKey(x => x.Id);
            builder.HasKey(x => new { x.GroupId, x.UserId });
            builder.HasIndex(x => x.Id).IsUnique();
            builder.HasIndex(x => new { x.GroupId, x.State, x.CreationTime });
            builder.HasIndex(x => new { x.UserId, x.CreationTime });

            builder.ComplexProperty(x => x.UserProfile, u =>
            {
                u.Property(p => p.Avatar)
                    .HasMaxLength(100);

                u.Property(p => p.NickName)
                    .IsRequired()
                    .HasMaxLength(20);
            });

            builder.ComplexProperty(x => x.GroupProfile, u =>
            {
                u.Property(p => p.Avatar)
                    .IsRequired()
                    .HasMaxLength(100);

                u.Property(p => p.GroupName)
                    .IsRequired()
                    .HasMaxLength(20);
            });
        }
    }
}