1from plain.exceptions import ValidationError
 2from plain.http import BadRequestError400
 3
 4
 5class FormFieldMissingError(BadRequestError400):
 6    def __init__(self, field_name: str):
 7        self.field_name = field_name
 8        self.message = f'The "{self.field_name}" field is missing from the form data.'
 9
10
11__all__ = [
12    "ValidationError",
13    "FormFieldMissingError",
14]