fix: harden list-of-dict type checks in flatten paths by reviewer-B

Author: Coding-Dev-Tools

src/json2sql/converter.py

@@ -84,7 +84,7 @@ def _convert_objects(self, objects: list[dict], table_name: str) -> str:
             # Process nested arrays into child tables
             for obj in objects:
                 for key, value in obj.items():
-                    if isinstance(value, list) and value and isinstance(value[0], dict):
+                    if isinstance(value, list) and value and all(isinstance(v, dict) for v in value):
                         self._flatten_nested(table_name, key, value, obj)
         else:
             columns = self._infer_columns(objects)
@@ -216,5 +216,5 @@ def _process_flatten(self, objects: list, table_name: str) -> None:
             return
         for obj in objects:
             for key, value in obj.items():
-                if isinstance(value, list) and value and isinstance(value[0], dict):
+                if isinstance(value, list) and value and all(isinstance(v, dict) for v in value):
                     self._flatten_nested(table_name, key, value, obj)