Sha256: 847a452bb57a50aaf765ebba5e138f0ebf83f7f0c6739160984568da2d4f9894
Contents?: true
Size: 717 Bytes
Versions: 52
Compression:
Stored size: 717 Bytes
Contents
# Validator to ensure an attribute is `nil`. Intended for use conditionally with `:if` or `:unless` to ensure an
# attribute is `nil` under one condition while a different validation, such as `:presence` or `:inclusion` is used under
# the dual of that condition.
class NilValidator < ActiveModel::EachValidator
# Validates that `value` is `nil`.
#
# @param record [#errors, ActiveRecord::Base] an ActiveModel or ActiveRecord
# @param attribute [Symbol] name of attribute being validated.
# @param value [#nil?] value of `attribute` to check with `nil?`
# @return [void]
def validate_each(record, attribute, value)
unless value.nil?
record.errors[attribute] << 'must be nil'
end
end
end
Version data entries
52 entries across 52 versions & 1 rubygems