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|
- from voluptuous import Invalid, MultipleInvalid
- from voluptuous.error import Error
-
-
- MAX_VALIDATION_ERROR_ITEM_LENGTH = 500
-
-
- def _nested_getitem(data, path):
- for item_index in path:
- try:
- data = data[item_index]
- except (KeyError, IndexError, TypeError):
- # The index is not present in the dictionary, list or other
- # indexable or data is not subscriptable
- return None
- return data
-
-
- def humanize_error(data, validation_error, max_sub_error_length=MAX_VALIDATION_ERROR_ITEM_LENGTH):
- """ Provide a more helpful + complete validation error message than that provided automatically
- Invalid and MultipleInvalid do not include the offending value in error messages,
- and MultipleInvalid.__str__ only provides the first error.
- """
- if isinstance(validation_error, MultipleInvalid):
- return '\n'.join(sorted(
- humanize_error(data, sub_error, max_sub_error_length)
- for sub_error in validation_error.errors
- ))
- else:
- offending_item_summary = repr(_nested_getitem(data, validation_error.path))
- if len(offending_item_summary) > max_sub_error_length:
- offending_item_summary = offending_item_summary[:max_sub_error_length - 3] + '...'
- return '%s. Got %s' % (validation_error, offending_item_summary)
-
-
- def validate_with_humanized_errors(data, schema, max_sub_error_length=MAX_VALIDATION_ERROR_ITEM_LENGTH):
- try:
- return schema(data)
- except (Invalid, MultipleInvalid) as e:
- raise Error(humanize_error(data, e, max_sub_error_length))
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