add in db stuff

app.py

@@ -52,6 +52,14 @@ examples_prompt = PromptTemplate(
 def get_potential_labels():
     # get potential labels from db
     global potential_labels
+    db_connection = mysql.connector.connect(
+        host=db_host,
+        user=db_user,
+        password=db_pass,
+        database=db_name,
+    )
+
+    db_cursor = db_connection.cursor()
     potential_labels = db_cursor.execute(
         "SELECT message_category_name FROM radmap_frog12.message_categorys"
     )