[DH-5014] Fix duplicated questions (#255)

dataherald/api/fastapi.py

@@ -131,23 +131,24 @@ def answer_question(
         run_evaluator: bool = True,
         generate_csv: bool = False,
         question_request: QuestionRequest = None,
+        user_question: Question | None = None,
     ) -> Response:
         """Takes in an English question and answers it based on content from the registered databases"""
-        logger.info(f"Answer question: {question_request.question}")
         sql_generation = self.system.instance(SQLGenerator)
         context_store = self.system.instance(ContextStore)
 
-        user_question = Question(
-            question=question_request.question,
-            db_connection_id=question_request.db_connection_id,
-        )
-
-        question_repository = QuestionRepository(self.storage)
-        user_question = question_repository.insert(user_question)
+        if not user_question:
+            user_question = Question(
+                question=question_request.question,
+                db_connection_id=question_request.db_connection_id,
+            )
+            question_repository = QuestionRepository(self.storage)
+            user_question = question_repository.insert(user_question)
+        logger.info(f"Answer question: {user_question.question}")
 
         db_connection_repository = DatabaseConnectionRepository(self.storage)
         database_connection = db_connection_repository.find_by_id(
-            question_request.db_connection_id
+            user_question.db_connection_id
         )
         if not database_connection:
             return JSONResponse(
@@ -209,7 +210,7 @@ def run_and_catch_exceptions():
             nonlocal result, exception
             if not stop_event.is_set():
                 result = self.answer_question(
-                    run_evaluator, generate_csv, question_request
+                    run_evaluator, generate_csv, None, user_question
                 )
 
         thread = threading.Thread(target=run_and_catch_exceptions)