wordpress 复杂的表结构。。

 public class Post
    {
        public int ID { get; set; }
        public User author { get; set; }
        public DateTime post_date { get; set; }
        public DateTime post_date_gmt { get; set; }
        public string post_content { get; set; }
        public string post_title { get; set; }
        public string post_status { get; set; }
        public string comment_status { get; set; }
        public string ping_status { get; set; }
        public string post_password { get; set; }
        public string post_name { get; set; }
        public string to_ping { get; set; }
        public string pinged { get; set; }
        public DateTime post_modified { get; set; }
        public DateTime post_modified_gmt { get; set; }
        public string post_content_filtered { get; set; }
        public int post_parent { get; set; }
        public string guid { get; set; }
        public int menu_order { get; set; }
        public string post_type { get; set; }
        public string post_mime_type { get; set; }
        public int comment_count { get; set; }
        public List<Term_relationships> Term_relationships { get; set; }
    }
    public class Term
    {
        public int id { get; set; }
        public string name { get; set; }
        public string slug { get; set; }
        public int term_group { get; set; }
        //public virtual ICollection<Term_taxonomy> termList { get; set; }
    }
    public class Term_taxonomy
    {
        public int id { get; set; }
        public virtual Term term { get; set; }
        public string taxonomy { get; set; }
        public string description { get; set; }
        public int parent { get; set; }
        public int count { get; set; }
        public virtual ICollection<Term_taxonomy> relationships { get; set; }
    }
    public class Term_relationships
    {
        public int id { get; set; }
        public Post post { get; set; }
        public Term_taxonomy term_taxonomy { get; set; }
        public int term_order { get; set; }
        public virtual ICollection<Term_taxonomy> taxonomys { get; set; }
    }

用EF实现查询
根据 分类查询 文章

错误的

      var posts = DataContext.Posts.
                Include(p => p.Term_relationships.Select(qs => qs.term_taxonomy).Select(pas => pas.term).Where(psss => psss.slug == cat));

这样是可以关联出数据来 可是隐藏的太深了

 var term = DataContext.Terms.Where(p => p.slug == cat)
                .Include(x=>x.termList.Select(s=>s.relationships.Select(p=>p.post)));

最终想得到的数据(缺少where)

  PagedList<Post> orders = DataContext.Posts.Include("Term_relationships")
                .Include("Term_relationships.term_taxonomy")
                .Include("Term_relationships.term_taxonomy.term")
                .OrderBy(p => p.post_date)
                .ToPagedList(id ?? 1, 5);

//高手给出的解决方案！

.Where(x => x.Term_relationships.Select(r => r.term_taxonomy.term.slug).Contains(cat))