public static void SavePostList(List<Post> postList)
 {
     if (postList != null && postList.Count > 0)
     {
         DataLayer dataLayer = new DataLayer();
         List<Post> oldPosts = dataLayer.SearchPost(postList[0].PostTypeId, null, null, null, null, null, null, null, null, null, null, null,
             DateTime.Today, DateTime.Now, null, null, false);
         foreach (Post saveItem in postList)
         {
             if (oldPosts.Count(i => i.PersonName == saveItem.PersonName
                                     && i.PhoneNumber == saveItem.PhoneNumber
                                     && i.Address == saveItem.Address
                                     && i.Price == saveItem.Price
                                     && i.PostTypeId == saveItem.PostTypeId) == 0)
             {
                 SavePost(saveItem);
             }
         }
     }
 }