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Add a BooleanRequired validator for use with BooleanField #481

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Add a BooleanRequired validator for use with BooleanField #481

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5f189c4
feat: provide BooleanRequired for BooleanField
alswl May 5, 2019
d4bce56
fix: remove type hints
alswl May 5, 2019
b1eb987
fix: format
alswl May 5, 2019
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22 changes: 22 additions & 0 deletions src/wtforms/validators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -649,6 +649,27 @@ def __call__(self, hostname):
return True


class BooleanRequired(object):
"""
Validates that boolean input was provided for this field.
"""

field_flags = ("required",)

def __init__(self, message=None):
self.message = message

def __call__(self, form, field):
if not field.raw_data or field.raw_data[0] not in (True, False):
if self.message is None:
message = field.gettext("This field is required.")
else:
message = self.message

field.errors[:] = []
raise StopValidation(message)


email = Email
equal_to = EqualTo
ip_address = IPAddress
Expand All @@ -662,3 +683,4 @@ def __call__(self, hostname):
url = URL
any_of = AnyOf
none_of = NoneOf
boolean_required = BooleanRequired