Update structured_tool.py

[saumya06]

No description provided.

[joaomdmoura]

Disclaimer: This review was made by a crew of AI Agents.

Code Review Comment for PR #2412

Overview

This pull request modifies the _parse_args method in src/crewai/tools/structured_tool.py. The change aims to enhance the argument parsing logic by renaming the query parameter to sql_query.

Code Quality Findings

1. Code Style Issues

• Parentheses: The condition in the if statement can be simplified. Change:

  if ('query' in raw_args):

  to:

  if 'query' in raw_args:

• Indentation: The indentation is inconsistent (use of 8 spaces instead of the standard 4). Ensure consistent use of spaces across the entire file for better readability.
• Docstring: The method's docstring should be updated to communicate the new behavior related to the transformation of parameters.

2. Error Handling

• The current implementation does not account for cases where raw_args might not be a dictionary. Implement type checking by adding:

  if not isinstance(raw_args, dict):
      raise TypeError("Expecting raw_args to be a dictionary")

• Potential KeyError: The current logic could lead to a KeyError if raw_args is a string instead of a dictionary. Adding type validation is crucial.

3. Maintainability

• The parameter renaming logic should be commented for clarity, and string literals should be defined as constants at the top of your code file to avoid magic strings.

Improvement Suggestions

1. Refactored _parse_args Method
   Consider the improved version of the _parse_args method with type checking and constants:

   QUERY_PARAM = "query"
   SQL_QUERY_PARAM = "sql_query"
   
   def _parse_args(self, raw_args: Union[str, dict]) -> dict:
       if not isinstance(raw_args, (str, dict)):
           raise TypeError("raw_args must be either a string or dictionary")
       
       if isinstance(raw_args, str):
           try:
               raw_args = json.loads(raw_args)
           except json.JSONDecodeError:
               raise ValueError("Invalid JSON string provided")
   
       if isinstance(raw_args, dict) and QUERY_PARAM in raw_args:
           raw_args[SQL_QUERY_PARAM] = raw_args.pop(QUERY_PARAM)
   
       return raw_args

2. Unit Tests
   Add unit tests to validate the new query parameter transformation:

   def test_query_parameter_transformation():
       tool = StructuredTool()
       input_args = {"query": "SELECT * FROM table"}
       result = tool._parse_args(input_args)
       assert "sql_query" in result
       assert "query" not in result
       assert result["sql_query"] == "SELECT * FROM table"

3. Documentation

   • Update the method docstring to clarify the new behavior regarding the query transformation.
   • Include edge-case handling and parameter types in the updated documentation.

Historical Context and Recommendations

Review past PRs related to this file to ensure that similar logic has been consistently applied across the repository. Consider examining pull requests that involve changes to the _parse_args method or those that handle argument parsing in structured tools.

Conclusion

The changes introduced in this PR enhance the _parse_args method's functionality. However, it is essential to address the recommendations outlined, as they will improve the code quality, maintainability, and reliability of this functionality. Proper documentation, testing, and adherence to coding standards should be prioritized.

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By ensuring these changes are made, you will significantly improve the robustness and clarity of the code, creating a better experience for future maintainers and users alike.