minor fix

app/rag.py

@@ -78,7 +78,7 @@ class ChatPDF:
         logger.info("enumerating text_chunks")
         for idx, text_chunk in enumerate(self.text_chunks):
             node = TextNode(text=text_chunk)
-            self.src_doc = docs[doc_ids[idx]]
+            self.src_doc = docs[self.doc_ids[idx]]
             node.metadata = src_doc.metadata
             self.nodes.append(node)
 
@@ -109,7 +109,7 @@ class ChatPDF:
         return streaming_response
 
     def clear(self):
-        self.self.client.delete(collection_name="rag_documents", ids=doc_ids)
+        self.self.client.delete(collection_name="rag_documents", ids=self.doc_ids)
         self.pdf_count = 0
         self.text_chunks = []
         self.doc_ids = []