Contents

module ActiveRecordJsonUrlExtension
  extend ActiveSupport::Concern

  def serializable_hash(options = {})
    options[:methods] = [:url] if not options[:methods]
    options[:methods] = [options[:methods]] if options[:methods].kind_of? Symbol
    options[:methods] << :url if options[:methods]
    raise 'options[:methods] should be an array' unless options[:methods].kind_of? Array
    super options
  end

  def url
    UrlHelper.new(self).url
  end
  
  # The following class generates a scope that prevents the url helpers
  # from being included directly into ActiveRecordJsonUrlExtension and therefore
  # into ActiveRecord::Base. 
  #
  #   class MyModel < ActiveRecord::Base
  #   end
  #
  #   my_instance = MyModel.create()
  #
  # You may call `my_instance.url()` to get the same result as for
  # `url_for(my_instance)`.
  # But you should not be able to call, for example, 
  # `my_instance.my_model_path( ... )`.
  #
  class UrlHelper
    include Rails.application.routes.url_helpers
    include ActionDispatch::Routing::UrlFor

    def initialize(obj)
      @obj = obj
    end
    
    def url_options
      Rails.application.config.action_mailer.default_url_options || raise("Please set 'config.action_mailer.default_url_options = {host: ...}' in the application config.")
    end
  
    def url
      url_for(@obj)
    end
  end
end

ActiveRecord::Base.send(:include, ActiveRecordJsonUrlExtension)

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
your_platform-1.0.1	app/models/active_record_json_url_extension.rb
your_platform-1.0.0	app/models/active_record_json_url_extension.rb