Upload streamlit_app.py

streamlit_app.py

@@ -1032,14 +1032,40 @@ class ChromaVectorStore:
                     
                     embeddings_list = embeddings.tolist()
                     
+
                     # Create document IDs
                     doc_ids = [f"doc_{i+j}" for j in range(len(batch_texts))]
-                    
+
+                    # Sanitize metadata: Chroma expects primitive metadata values (str,int,float,bool,None)
+                    sanitized_metadatas = []
+                    for md in batch_metadatas:
+                        clean_md = {}
+                        if not md:
+                            sanitized_metadatas.append(clean_md)
+                            continue
+                        for k, v in md.items():
+                            # Convert lists to comma-separated strings
+                            if isinstance(v, list):
+                                clean_md[k] = ', '.join(str(x) for x in v)
+                            # Convert dicts to JSON string
+                            elif isinstance(v, dict):
+                                try:
+                                    clean_md[k] = json.dumps(v)
+                                except Exception:
+                                    clean_md[k] = str(v)
+                            # Accept primitive types
+                            elif isinstance(v, (str, int, float, bool)) or v is None:
+                                clean_md[k] = v
+                            else:
+                                # Fallback to string representation
+                                clean_md[k] = str(v)
+                        sanitized_metadatas.append(clean_md)
+
                     # Add to Chroma collection
                     self.collection.add(
                         embeddings=embeddings_list,
                         documents=batch_texts,
-                        metadatas=batch_metadatas,
+                        metadatas=sanitized_metadatas,
                         ids=doc_ids
                     )