refactor(rag): switch to dify_config. (#6410)

Co-authored-by: -LAN- <laipz8200@outlook.com>

api/core/rag/datasource/vdb/milvus/milvus_vector.py

@@ -3,10 +3,10 @@ import logging
 from typing import Any, Optional
 from uuid import uuid4
 
-from flask import current_app
 from pydantic import BaseModel, model_validator
 from pymilvus import MilvusClient, MilvusException, connections
 
+from configs import dify_config
 from core.rag.datasource.entity.embedding import Embeddings
 from core.rag.datasource.vdb.field import Field
 from core.rag.datasource.vdb.vector_base import BaseVector
@@ -275,15 +275,14 @@ class MilvusVectorFactory(AbstractVectorFactory):
             dataset.index_struct = json.dumps(
                 self.gen_index_struct_dict(VectorType.MILVUS, collection_name))
 
-        config = current_app.config
         return MilvusVector(
             collection_name=collection_name,
             config=MilvusConfig(
-                host=config.get('MILVUS_HOST'),
-                port=config.get('MILVUS_PORT'),
-                user=config.get('MILVUS_USER'),
-                password=config.get('MILVUS_PASSWORD'),
-                secure=config.get('MILVUS_SECURE'),
-                database=config.get('MILVUS_DATABASE'),
+                host=dify_config.MILVUS_HOST,
+                port=dify_config.MILVUS_PORT,
+                user=dify_config.MILVUS_USER,
+                password=dify_config.MILVUS_PASSWORD,
+                secure=dify_config.MILVUS_SECURE,
+                database=dify_config.MILVUS_DATABASE,
             )
         )