修复milvus相关bug

server/db/repository/knowledge_file_repository.py

@@ -5,6 +5,19 @@ from server.knowledge_base.utils import KnowledgeFile
 from typing import List, Dict
 
 
+@with_session
+def list_file_num_docs_id_by_kb_name_and_file_name(session,
+                                                   kb_name: str,
+                                                   file_name: str,
+                                                   ) -> List[int]:
+    '''
+    列出某知识库某文件对应的所有Document的id。
+    返回形式：[str, ...]
+    '''
+    doc_ids = session.query(FileDocModel.doc_id).filter_by(kb_name=kb_name, file_name=file_name).all()
+    return [int(_id[0]) for _id in doc_ids]
+
+
 @with_session
 def list_docs_from_db(session,
                       kb_name: str,
@@ -140,8 +153,10 @@ def delete_file_from_db(session, kb_file: KnowledgeFile):
 
 @with_session
 def delete_files_from_db(session, knowledge_base_name: str):
-    session.query(KnowledgeFileModel).filter(KnowledgeFileModel.kb_name.ilike(knowledge_base_name)).delete(synchronize_session=False)
-    session.query(FileDocModel).filter(FileDocModel.kb_name.ilike(knowledge_base_name)).delete(synchronize_session=False)
+    session.query(KnowledgeFileModel).filter(KnowledgeFileModel.kb_name.ilike(knowledge_base_name)).delete(
+        synchronize_session=False)
+    session.query(FileDocModel).filter(FileDocModel.kb_name.ilike(knowledge_base_name)).delete(
+        synchronize_session=False)
     kb = session.query(KnowledgeBaseModel).filter(KnowledgeBaseModel.kb_name.ilike(knowledge_base_name)).first()
     if kb:
         kb.file_count = 0

server/knowledge_base/kb_service/base.py

@@ -315,6 +315,7 @@ class KBServiceFactory:
             from server.knowledge_base.kb_service.zilliz_kb_service import ZillizKBService
             return ZillizKBService(kb_name, embed_model=embed_model)
         elif SupportedVSType.DEFAULT == vector_store_type:
+            from server.knowledge_base.kb_service.milvus_kb_service import MilvusKBService
             return MilvusKBService(kb_name,
                                    embed_model=embed_model)  # other milvus parameters are set in model_config.kbs_config
         elif SupportedVSType.ES == vector_store_type:

server/knowledge_base/kb_service/milvus_kb_service.py

@@ -5,6 +5,7 @@ from langchain.vectorstores.milvus import Milvus
 import os
 
 from configs import kbs_config
+from server.db.repository import list_file_num_docs_id_by_kb_name_and_file_name
 
 from server.knowledge_base.kb_service.base import KBService, SupportedVSType, EmbeddingsFunAdapter, \
     score_threshold_process
@@ -23,7 +24,7 @@ class MilvusKBService(KBService):
         result = []
         if self.milvus.col:
             # ids = [int(id) for id in ids]  # for milvus if needed #pr 2725
-            data_list = self.milvus.col.query(expr=f'pk in {ids}', output_fields=["*"])
+            data_list = self.milvus.col.query(expr=f'pk in {[int(_id) for _id in ids]}', output_fields=["*"])
             for data in data_list:
                 text = data.pop("text")
                 result.append(Document(page_content=text, metadata=data))
@@ -84,12 +85,9 @@ class MilvusKBService(KBService):
         return doc_infos
 
     def do_delete_doc(self, kb_file: KnowledgeFile, **kwargs):
+        id_list = list_file_num_docs_id_by_kb_name_and_file_name(kb_file.kb_name, kb_file.filename)
         if self.milvus.col:
-            filepath = kb_file.filepath.replace('\\', '\\\\')
-            filename = os.path.basename(filepath)
-            delete_list = [item.get("pk") for item in
-                           self.milvus.col.query(expr=f'source == "{filepath}"', output_fields=["pk"])]
-            self.milvus.col.delete(expr=f'pk in {delete_list}')
+            self.milvus.col.delete(expr=f'pk in {id_list}')
 
     def do_clear_vs(self):
         if self.milvus.col: