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Add way to set form-wide schema validator

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was needed to enforce rule where one field is required only in some
cases, depending on value of another field
This commit is contained in:
Lance Edgar 2022-01-09 18:13:12 -06:00
parent 0545099a2b
commit 8579b89002
1 changed files with 16 additions and 2 deletions
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18
tailbone/forms/core.py
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@ -2,7 +2,7 @@
################################################################################ ################################################################################
# #
# Rattail -- Retail Software Framework # Rattail -- Retail Software Framework
# Copyright © 2010-2021 Lance Edgar # Copyright © 2010-2022 Lance Edgar
# #
# This file is part of Rattail. # This file is part of Rattail.
# #
@ -542,7 +542,10 @@ class Form(object):
# apply any validators # apply any validators
for key, validator in self.validators.items(): for key, validator in self.validators.items():
if key in schema: if key is None:
# this one is form-wide
schema.validator = validator
elif key in schema:
schema[key].validator = validator schema[key].validator = validator
# apply required flags # apply required flags
@ -671,6 +674,17 @@ class Form(object):
self.schema[key].widget = widget self.schema[key].widget = widget
def set_validator(self, key, validator): def set_validator(self, key, validator):
"""
Set the validator for the schema node represented by the given
key.
:param key: Normally this the name of one of the fields
contained in the form. It can also be ``None`` in which
case the validator pertains to the form at large instead of
one of the fields.
:param validator: Callable validator for the node.
"""
self.validators[key] = validator self.validators[key] = validator
def set_required(self, key, required=True): def set_required(self, key, required=True):