ParanoidStarlight

This gem is pack of methods to convert or validate different formats of strings and texts in model, like telephone numbers (CZ/SK format), email, or (european) names (currently). Or to clean string of too much whitespaces.

It provides convert methods for attributes of model (getter and setter method in object is enough). They are used in save hooks.

There are also validator methods for ActiveModel nd hook for automatic ActiveRecord integration. Just type: (require 'paranoid_starlight/active_record')

Specs included.

Add this line to your application's Gemfile:

gem 'paranoid_starlight'

If you want to have methods available for ActiveRecord models, use:

gem 'paranoid_starlight', :require => 'paranoid_starlight/active_record'

And then execute:

$ bundle

Or install it yourself as:

$ gem install paranoid_starlight

class MyModel
  include ActiveModel::Validations
  include ParanoidStarlight::Attributes::Validations
  
  attr_accessor :email
  validates_email_format_of :email
end

model = MyModel.new
model.email = 'example@example.org'
model.valid?

If you required active_record hook, you can use:

require 'paranoid_starlight/active_record'

class Person < ActiveRecord::Base
  attr_accessible :name, :telephone, :mobile, :email
  attr_accessible :address, :zip

  validates_email_format_of :email
  validates_name_format_of :name
  # few different valid formats are allowed
  validates_telephone_number_convertibility_of :telephone, :mobile
  # or validates :email, :email => true

  before_save :convert_fields
  before_validation :process_fields

  def convert_fields
    # convert to international form
    convert_telephone_number(:telephone)
    convert_telephone_number(:mobile)
    # or convert_telephone_number [:telephone, :mobile]
    # do other things
  end

  def process_fields
    process_string([:address, :zip])
  end
end

Currently there are these possibilities:

Validations for ActiveModel

• validates_email_format_of
• validates_name_format_of
• validates_telephone_number_convertibility_of

Converters for attributes (getter and setter methods in object are enough)

• process_string (substitutes one or more whitespaces with space)
• convert_telephone_number

It is easy to create own converter, just do:

class Kiddie
  include ::ParanoidStarlight::Attributes::Converters
  attr_accessor :name
  
  def l33t
    basic_converter(self, :name) do |text|
      text.gsub('e', '3')
    end
  end
end

1. Fork it
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 new Pull Request

Separate email and name validators to own functions, to be independent from ActiveModel validators.

Programmed in 2012
by Ivan Stana
License: MIT