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

on database strings

WebApi/index.html

@@ -11,6 +11,10 @@
 <br/>
 <button onclick="searchForum('author', prompt('Author: ', 'veeb'))">SearchForumAuthor</button>
 <button onclick="searchForum('title', prompt('Title: ', 'test'))">SearchForumTitle</button>
+<button onclick="searchForum('authorPosts', prompt('Author: ', 'test'))">SearchAuthorPosts</button>
+
+<br/>
+<button onclick="addPost(prompt('ForumId', '1'), 'Best title', prompt('Body', 'Lahe post'))">AddPost</button>
 
 <code><pre id="output"></pre></code>
 
@@ -83,4 +87,22 @@
             out.innerText = JSON.stringify(data, null, 2);
         });
     }
+
+    function addPost(id, title, body) {
+        var dto = {
+            Author: "Ajax",
+            Body: body,
+            Title: title
+        }
+        fetch("/api/foorum/"+id,
+            {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json'
+                },
+                body: JSON.stringify(dto)
+            }).then(resp => getForum(id));
+    }
+
+    getForums();
 </script>