feat: warning when no dataset is selected

app.py

@@ -16,6 +16,8 @@ client = InferenceClient(
 
 
 def get_iframe(hub_repo_id, sql_query=None):
+    if not hub_repo_id:
+        raise ValueError("Hub repo id is required")
     if sql_query:
         sql_query = urllib.parse.quote(sql_query)
         url = f"https://huggingface.co/datasets/{hub_repo_id}/embed/viewer?sql_console=true&sql={sql_query}"
@@ -97,7 +99,7 @@ with gr.Blocks() as demo:
             placeholder="Enter a natural language query to generate SQL",
         )
     with gr.Row():
-        sql_out = gr.Code(label="SQL Query")
+        sql_out = gr.Code(label="SQL Query", interactive=True, language="sql", lines=1)
     with gr.Row():
         btn2 = gr.Button("Query Dataset")
 
@@ -116,7 +118,7 @@ with gr.Blocks() as demo:
         fn=query_dataset,
         inputs=[search_in, features, query],
         outputs=[sql_out, search_out],
-    )
+    )z
 
 if __name__ == "__main__":
     demo.launch()