fixing null issue

logic/data_utils.py

@@ -221,11 +221,11 @@ class CustomHFDatasetSaver:
             "language": values_dic['language'] or "",
             "category": values_dic['category'] or "",
             "concept": values_dic['concept'] or "",
-            "category_1_concepts": [""] if values_dic.get('category_1_concepts', [""])==[] else values_dic.get('category_1_concepts', [""]),
-            "category_2_concepts": [""] if values_dic.get('category_2_concepts', [""])==[] else values_dic.get('category_2_concepts', [""]),
-            "category_3_concepts": [""] if values_dic.get('category_3_concepts', [""])==[] else values_dic.get('category_3_concepts', [""]),
-            "category_4_concepts": [""] if values_dic.get('category_4_concepts', [""])==[] else values_dic.get('category_4_concepts', [""]),
-            "category_5_concepts": [""] if values_dic.get('category_5_concepts', [""])==[] else values_dic.get('category_5_concepts', [""]),
+            "category_1_concepts": values_dic.get('category_1_concepts') or [""],
+            "category_2_concepts": values_dic.get('category_2_concepts') or [""],
+            "category_3_concepts": values_dic.get('category_3_concepts') or [""],
+            "category_4_concepts": values_dic.get('category_4_concepts') or [""],
+            "category_5_concepts": values_dic.get('category_5_concepts') or [""],
             "timestamp": current_timestamp,
             "username": values_dic['username'] or "",
             "password": values_dic['password'] or "",