refactor: Removes tenant ID check from rate limit logic (#20585)

Signed-off-by: -LAN- <laipz8200@outlook.com>

api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py

@@ -86,31 +86,31 @@ class KnowledgeRetrievalNode(LLMNode):
             return NodeRunResult(
                 status=WorkflowNodeExecutionStatus.FAILED, inputs=variables, error="Query is required."
             )
+        # TODO(-LAN-): Move this check outside.
         # check rate limit
-        if self.tenant_id:
-            knowledge_rate_limit = FeatureService.get_knowledge_rate_limit(self.tenant_id)
-            if knowledge_rate_limit.enabled:
-                current_time = int(time.time() * 1000)
-                key = f"rate_limit_{self.tenant_id}"
-                redis_client.zadd(key, {current_time: current_time})
-                redis_client.zremrangebyscore(key, 0, current_time - 60000)
-                request_count = redis_client.zcard(key)
-                if request_count > knowledge_rate_limit.limit:
-                    with Session(db.engine) as session:
-                        # add ratelimit record
-                        rate_limit_log = RateLimitLog(
-                            tenant_id=self.tenant_id,
-                            subscription_plan=knowledge_rate_limit.subscription_plan,
-                            operation="knowledge",
-                        )
-                        session.add(rate_limit_log)
-                        session.commit()
-                    return NodeRunResult(
-                        status=WorkflowNodeExecutionStatus.FAILED,
-                        inputs=variables,
-                        error="Sorry, you have reached the knowledge base request rate limit of your subscription.",
-                        error_type="RateLimitExceeded",
+        knowledge_rate_limit = FeatureService.get_knowledge_rate_limit(self.tenant_id)
+        if knowledge_rate_limit.enabled:
+            current_time = int(time.time() * 1000)
+            key = f"rate_limit_{self.tenant_id}"
+            redis_client.zadd(key, {current_time: current_time})
+            redis_client.zremrangebyscore(key, 0, current_time - 60000)
+            request_count = redis_client.zcard(key)
+            if request_count > knowledge_rate_limit.limit:
+                with Session(db.engine) as session:
+                    # add ratelimit record
+                    rate_limit_log = RateLimitLog(
+                        tenant_id=self.tenant_id,
+                        subscription_plan=knowledge_rate_limit.subscription_plan,
+                        operation="knowledge",
                     )
+                    session.add(rate_limit_log)
+                    session.commit()
+                return NodeRunResult(
+                    status=WorkflowNodeExecutionStatus.FAILED,
+                    inputs=variables,
+                    error="Sorry, you have reached the knowledge base request rate limit of your subscription.",
+                    error_type="RateLimitExceeded",
+                )
 
         # retrieve knowledge
         try: