heartcombo--simple_form/lib/simple_form/components/maxlength.rb

29 lines
748 B
Ruby

module SimpleForm
module Components
# Needs to be enabled in order to do automatic lookups.
module Maxlength
def maxlength
input_html_options[:maxlength] ||= maximum_length_from_validation || limit
nil
end
private
def maximum_length_from_validation
if options[:maxlength] == true
length_validator = find_length_validator
if length_validator && !length_validator.options[:tokenizer]
length_validator.options[:is] || length_validator.options[:maximum]
end
else
options[:maxlength]
end
end
def find_length_validator
find_validator(ActiveModel::Validations::LengthValidator)
end
end
end
end