attilagyorffy
/ css_colour_validator.rb
Created
October 29, 2011 12:27
CSS colour validation in Rails 3
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Put this file under Rails.root /lib | |
| class CssColourValidator < ActiveModel::EachValidator | |
| def validate_each(record, attribute, value) | |
| return false unless value | |
| record.errors[attribute] << (options[:message] || 'is not a valid CSS colour') unless ::HexadecimalColourValidator.matches?(value) or ::WebSafeColourValidator.matches?(value) | |
| end | |
| end |