Normalize Attributes

Sometimes you want to normalize data before saving it to the database like down casing e-mails, removing spaces and so on. This Rails plugin allows you to do so in a simple way.

Usage

To install:

gem install normalize_attributes

Then on your model:

class User < ActiveRecord::Base
  normalize :email, :with => :downcase
end

The example above will normalize your :email attribute on the before_save callback.

You can specify multiple attributes

normalize :email, :username, :with => :downcase

You can use a block

normalize :name do |value|
  value.squish
end

You can combine both

normalize :name, :with => :downcase do |value|
  value.squish
end

The squish method is the default normalizer for strings. All you need to is specify the attribute:

normalize :content

The compact method is the default normalizer for arrays (when using serialize method):

class User < ActiveRecord::Base
  serialize :preferences, Array
  normalize :preferences
end

The normalize method is aliased as normalize_attributes, normalize_attribute, normalize_attr, and normalize_attrs.

You can normalize the attribute before type casting; this is specially useful for normalizing dates and numbers.

class Product
  normalize(:price, :raw => true) {|v| Money.new(v).to_f}
end

Maintainer

• Nando Vieira (http://nandovieira.com.br)

License:

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.