fix: Fix bug for issue #1669 (#1672)

Co-authored-by: WangTing <wangting@192.168.1.10>
Co-authored-by: aries_ckt <916701291@qq.com>

dbgpt/app/knowledge/document_db.py

@@ -219,6 +219,7 @@ class KnowledgeDocumentDao(BaseDao):
         )
 
         results = counts_query.all()
+        session.close()
         docs_count = {result.space: result.document_count for result in results}
         return docs_count
 
@@ -253,7 +254,9 @@ class KnowledgeDocumentDao(BaseDao):
         session = self.get_raw_session()
         updated_space = session.merge(document)
         session.commit()
-        return updated_space.id
+        update_space_id = updated_space.id
+        session.close()
+        return update_space_id
 
     #
     def raw_delete(self, query: KnowledgeDocumentEntity):

dbgpt/app/knowledge/service.py

@@ -220,9 +220,14 @@ class KnowledgeService:
             document.status not in [SyncStatus.RUNNING.name]
             and len(chunk_entities) == 0
         ):
-            self._sync_knowledge_document(
-                space_name=document.space,
-                doc=document,
+            from dbgpt.serve.rag.service.service import Service
+
+            rag_service = Service.get_instance(CFG.SYSTEM_APP)
+            space = rag_service.get({"name": document.space})
+            document_vo = KnowledgeDocumentEntity.to_document_vo(documents)
+            await rag_service._sync_knowledge_document(
+                space_id=space.id,
+                doc_vo=document_vo[0],
                 chunk_parameters=chunk_parameters,
             )
         knowledge = KnowledgeFactory.create(