CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3
Martin
Martin

Reputation: 11336

How to create a method to call from object.attribute in Rails?

I'm saving phone numbers as domestic on a phone field on a User model.

I did a quick method to convert the number to international.

My question is how to make this method available like this

@user.phone.to_international

Rather than my current

to_international(@user.phone.to_international,@user.phone.country)

Any idea how to do accomplish this?

Upvotes: 0

Views: 454

Answers (3)

Patrick Klingemann
Patrick Klingemann

Reputation: 9014

Monkey patch the String class. In myapp/config/initializers/string_monkey_patches.rb add:

String.class_eval do
  PHONE_NUMBER_FORMAT = // # some regex matching a phone number
  def to_international
    raise 'Invalid phone number format' unless self.match(PHONE_NUMBER_FORMAT)
    # convert self (the phone number string) to an international number
  end
end

Upvotes: -1

user1331999
user1331999

Reputation:

Create a class called phone with a to_international method, and set the phone property in the user class to be an instance of the phone class.

Upvotes: 2

Ismael
Ismael

Reputation: 16720

This works, but not sure if after_initialize is better or not

Add this to your User model

after_find :prepare_phone

private
def prepare_phone
  def phone.to_international
    self.upcase # change with whatever you want. 'self' is the phone attr 
  end
end

Upvotes: 2

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