Add post, fix delete forum, fix null pointer exceptions, min max limist

on database strings

WebApi/Controllers/FoorumController.cs

@@ -83,5 +83,15 @@ namespace WebApi.Controllers
 
             return Ok(f);
         }
+
+        public IHttpActionResult PostPost(int id, [FromBody] PostDTO post)
+        {
+            var p = _foorumService.AddPost(id, post);
+            if (p == null)
+            {
+                return NotFound();
+            }
+            return Ok(p);
+        }
     }
 }

WebApi/Controllers/SearchController.cs

@@ -26,5 +26,10 @@ namespace WebApi.Controllers
         {
             return Ok(_foorumService.SearchFoorumTitle(title));
         }
+
+        public IHttpActionResult GetAuthorPosts(string authorPosts)
+        {
+            return Ok(_foorumService.SearchPostAuthor(authorPosts));
+        }
     }
 }