1. import json
  3. def map_form_fields(form_data, field_mapping):
  4. """
  5. Maps fields from a form data dictionary to a desired structure
  6. based on a provided field mapping.
  8. Args:
  9. form_data (dict): A dictionary representing the form data.
  10. field_mapping (dict): A dictionary defining the mapping
  11. from form fields to target fields.
  12. Example: {'form_field_1': 'target_field_1',
  13. 'form_field_2': 'target_field_2'}
  15. Returns:
  16. dict: A dictionary containing the mapped fields.
  17. Returns an empty dictionary if form_data is empty.
  18. """
  19. if not form_data:
  20. return {}
  22. mapped_data = {}
  23. for form_field, target_field in field_mapping.items():
  24. if form_field in form_data:
  25. mapped_data[target_field] = form_data[form_field]
  26. return mapped_data
  28. if __name__ == '__main__':
  29. # Example usage
  30. form_data = {
  31. 'first_name': 'John',
  32. 'last_name': 'Doe',
  33. 'email': 'john.doe@example.com',
  34. 'phone_number': '123-456-7890'
  35. }
  37. field_mapping = {
  38. 'first_name': 'name',
  39. 'last_name': 'surname',
  40. 'email': 'email_address'
  41. }
  43. mapped_data = map_form_fields(form_data, field_mapping)
  44. print(json.dumps(mapped_data, indent=4))
  46. #Example with empty form data
  47. empty_form_data = {}
  48. mapped_data = map_form_fields(empty_form_data, field_mapping)
  49. print(json.dumps(mapped_data, indent=4))

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