如何在实体框架中创建用户喜欢帖子的表格

我有三个博客文章表：

• 发布属性如PostID、Title等的Post表
• User表用于作者属性，如UserID等
• 由PostID和UserID两列组成的PostLike表，它们是外键列。该表存储了用户喜欢的帖子。事实上，当用户喜欢某个帖子时，会在该表中插入一条记录

我的代码是：

    public partial class Post
      {
        public Post()
             {
             }
        public int PostID { get; set; }
        [Required, StringLength(150)]
        public string Title { get; set; }
        public int UserID { get; set; }
        public virtual User User { get; set; }
      }
    public partial class User
      {
        public User()
            {
              Posts = new HashSet<Post>();
            }
        public int UserID { get; set; }
        [Required,StringLength(50)]
        public string Name{ get; set; }
        public virtual ICollection<Post> Posts { get; set; }
      }
    public partial class PostLike
     {
        public PostLike()
           {
             Posts = new HashSet<Post>();
             Users = new HashSet<User>();
           }
         [Key,Column(Order = 0),ForeignKey("Posts")]
         public int PostID { get; set; }
         [Key, Column(Order = 1),ForeignKey("Users")]
         public int UserID { get; set; }
         public virtual ICollection<Post> Posts { get; set; }
         public virtual ICollection<User> Users { get; set; }
     }

但在创建数据库时，PostLike表没有任何外键，User表有两个外键，如PostLike_PostID和PostLike_UserID。需要指出的是，Post表并没有这些外键。有可能帮助我吗？

public class PostLike
{
  public int Id { set; get; }
  public int PostID { get; set; }
  public int UserID { get; set; }
  public virtual Post Post { get; set; }
  public virtual User User { get; set; }
}

public class YourDataContex : DbContext()
{    
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    { 
       modelBuilder.Entity<PostLike>()
       .HasRequired(c => c.User)
       .WithMany()
       .WillCascadeOnDelete(false);
    }
    public DbSet<User> Users { set; get; }
    public DbSet<Post> Posts { set; get; }
    public DbSet<PostLike> PostLikes { set; get; }
}