A ActiveRecord plugin which removes leading and trailing whitespace(include zenkaku space) of attributes before validation.

Add this line to your application's Gemfile:

    gem 'activerecord-attr-stripper'

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install activerecord-attr-stripper

class Post < ActiveRecord::Base
  include ActiveRecord::Attr::Stripper

  strip_attrs :title, :description, blank_to_nil: true
end

post = Post.new(title: ' 　this is title 　', description: '　')
post.valid?
puts post.title       #=> 'this is title'
puts post.description #=> nil

blank_to_nil option is true, attribute's value returns nil if the attribute is '' after removing leading and tailing whitespace.

1. Fork it ( https://github.com/[my-github-username]/activerecord-attr-stripper/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request