feat: improve metadata handling in connector service (#11421)

### What problem does this PR solve?

- Update sync data source to handle metadata properly

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

api/db/services/connector_service.py

@@ -214,9 +214,21 @@ class SyncLogsService(CommonService):
         err, doc_blob_pairs = FileService.upload_document(kb, files, tenant_id, src)
         errs.extend(err)
 
+        # Create a mapping from filename to metadata for later use
+        metadata_map = {}
+        for d in docs:
+            if d.get("metadata"):
+                filename = d["semantic_identifier"]+(f"{d['extension']}" if d["semantic_identifier"][::-1].find(d['extension'][::-1])<0 else "")
+                metadata_map[filename] = d["metadata"]
+
         kb_table_num_map = {}
         for doc, _ in doc_blob_pairs:
             doc_ids.append(doc["id"])
+            
+            # Set metadata if available for this document
+            if doc["name"] in metadata_map:
+                DocumentService.update_by_id(doc["id"], {"meta_fields": metadata_map[doc["name"]]})
+            
             if not auto_parse or auto_parse == "0":
                 continue
             DocumentService.run(tenant_id, doc, kb_table_num_map)

common/data_source/confluence_connector.py

@@ -1562,6 +1562,7 @@ class ConfluenceConnector(
                 size_bytes=len(page_content.encode("utf-8")),  # Calculate size in bytes
                 doc_updated_at=datetime_from_string(page["version"]["when"]),
                 primary_owners=primary_owners if primary_owners else None,
+                metadata=metadata if metadata else None,
             )
         except Exception as e:
             logging.error(f"Error converting page {page.get('id', 'unknown')}: {e}")

common/data_source/discord_connector.py

@@ -65,6 +65,7 @@ def _convert_message_to_document(
         blob=message.content.encode("utf-8"),
         extension=".txt",
         size_bytes=len(message.content.encode("utf-8")),
+        metadata=metadata if metadata else None,
     )
 
 

common/data_source/models.py

@@ -94,6 +94,7 @@ class Document(BaseModel):
     blob: bytes
     doc_updated_at: datetime
     size_bytes: int
+    metadata: Optional[dict[str, Any]] = None
 
 
 class BasicExpertInfo(BaseModel):

rag/svr/sync_data_source.py

@@ -75,8 +75,9 @@ class SyncBase:
                         min_update = min([doc.doc_updated_at for doc in document_batch])
                         max_update = max([doc.doc_updated_at for doc in document_batch])
                         next_update = max([next_update, max_update])
-                        docs = [
-                            {
+                        docs = []
+                        for doc in document_batch:
+                            doc_dict = {
                                 "id": doc.id,
                                 "connector_id": task["connector_id"],
                                 "source": self.SOURCE_NAME,
@@ -86,8 +87,10 @@ class SyncBase:
                                 "doc_updated_at": doc.doc_updated_at,
                                 "blob": doc.blob,
                             }
-                            for doc in document_batch
-                        ]
+                            # Add metadata if present
+                            if doc.metadata:
+                                doc_dict["metadata"] = doc.metadata
+                            docs.append(doc_dict)
 
                         try:
                             e, kb = KnowledgebaseService.get_by_id(task["kb_id"])