fix empty comment post

app.py

@@ -59,6 +59,8 @@ async def retrieve_similar_text_post(query: str) -> str:
     try:
         if query == "":
             raise gr.Error("Query is empty!")
+        if len(query) > 1000:
+            raise gr.Error("Too Long Query")
         query_embedding = get_query_embeddings(query)
         post = await db.get_text_post_similar(query_embedding)
         return post
@@ -78,9 +80,16 @@ async def get_text_post_comments(post_id: int) -> str:
 
 async def comment_on_text_post(post_id: int, content: str) -> bool:
     """Adds a text comment to the text post with id post_id. Returns True if successful"""
+    content = content.strip(" ").strip("\n")
     try:
+        if content == "":
+            raise gr.Error("Content is Empty!")
+        if len(content) > 1000:
+            raise gr.Error("Too long Comment")
         success = await db.comment_on_text_post(post_id, content)
         return success 
+    except gr.Error as e:
+        raise e
     except Exception as e:
         return False
 
@@ -117,7 +126,7 @@ with socialnet:
                 "Retrieve using query, uses semantic search using Vector Similarity"
             )
             text_input = gr.Textbox(
-                placeholder="Enter your query", label="Query (Try to be descriptive)"
+                placeholder="Enter your query", label="Query (Try to be descriptive)", max_length=500
             )
             text_output = gr.Textbox(
                 placeholder="Post will appear here!", label="Output"
@@ -141,7 +150,7 @@ with socialnet:
         with gr.TabItem("Post Comment"):
             gr.Markdown("Post a comment!")
             id_input = gr.Number(label="Post id")
-            text_input = gr.Textbox(placeholder="Type your comment here", label="Comment")
+            text_input = gr.Textbox(placeholder="Type your comment here", label="Comment", max_length=1000)
             success = gr.Checkbox(value=False, label="Success")
             submit_btn = gr.Button(value="Comment")
             submit_btn.click(comment_on_text_post, inputs=[id_input, text_input], outputs=success)