update metadata

appStore/prep_utils.py

@@ -17,7 +17,7 @@ def create_documents(df, text_column):
     """
     placeholder= []
     for i in range(len(df)):
-        metadata = {col: df.loc[i, col] for col in list(set(df.columns) - {text_column})}
+        metadata = {col: str(df.loc[i, col]) for col in list(set(df.columns) - {text_column})}
         placeholder.append(Document(page_content= df.loc[i,text_column], 
                                 metadata=metadata))
     return placeholder