KanaValidator
Adds methods to validate if your strings are composed of only kana, hiragana, katakana or kanji only.
Usage
class User < ActiveRecord::Base
validates_is_hiragana :name_hiragana, :allow_blank => true
validates_is_kanji :name_kanji
end
Available validators
validates_is_kana
validates_is_kanji
validates_is_hiragana
validates_is_katakana
validates_is_half_katakana
Options
allow_blank - Default to true
allow_nil - Deafult to true