fix: Ensure required fields are validated before creating filter conditions in CrudRepositoryImplementationService

Author: William-W-Chen

py_spring_model/py_spring_model_rest/service/curd_repository_implementation_service/crud_repository_implementation_service.py

@@ -228,8 +228,10 @@ def _build_filter_conditions(
 
         for field in parsed_query.required_fields:
             column = getattr(model_type, field)
-            param_value = params[field]
-            condition = self._create_field_condition(column, field, param_value, parsed_query.field_operations)
+            optional_param_value = params.get(field, None)
+            if optional_param_value is None:
+                raise ValueError(f"Required field '{field}' is missing or None. All required fields must be provided with non-None values.")
+            condition = self._create_field_condition(column, field, optional_param_value, parsed_query.field_operations)
             filter_conditions.append(condition)
 
         return filter_conditions