Module: MerchantSidekick::Addressable::ClassMethods

Defined in:
lib/merchant_sidekick/addressable/addressable.rb

Overview

Addressable adds address associations in the following way:

* supports multiple types of addresses, e.g. BusinessAddress
* associations for each type
* adds scopes, finders and other helpers

E.g.

class User < ActiveRecord::base
has_addresses :personal, :business, :billing
...
# => @user.personal_addresses
# => @user.find_personal_address
# => @user.find_or_build_personal_address
end

or

class User < ActiveRecord::base
has_address
...
# => @user.address
end


class User < ActiveRecord::base
has_address :mailing
...
# => @user.mailing_address
# => @user.find_mailing_address
# => @user.find_or_build_mailing_address
end

Instance Method Summary collapse

Instance Method Details

#has_address(*arguments) ⇒ Object

Defines a single address or a single address per address type



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# File 'lib/merchant_sidekick/addressable/addressable.rb', line 44

def has_address(*arguments)
  attributes, options = [], {:has_one => true, :has_many => false}
  arguments.each do |argument|
    case argument.class.name
    when 'Hash'
      options = options.merge(argument)
    else
      attributes << argument
    end
  end

  if attributes.empty?
    has_one :address, :as => :addressable, :dependent => :destroy,
      :class_name => "MerchantSidekick::Addressable::Address"

    class_eval("      def build_address_with_addressable(attributes={}, options={})\n        build_address_without_addressable(attributes.merge(:addressable => self), options)\n      end\n      alias_method_chain :build_address, :addressable\n\n      def address_attributes=(attributes)\n        self.address ? self.address.attributes = attributes : self.build_address(attributes)\n      end\n    END\n  else\n    attributes.each do |attribute|\n      # Address decendent\n      # Note: the <attribute>.pluralize.classify makes sure that classify works\n      #       for singular attribute, e.g. :business -> BusinessAddress, otherwise,\n      #       Rails default would inflect :business -> BusinesAddress\n      address_class = <<-ADDRESS\n      class \#{attribute.to_s.pluralize.classify}Address < MerchantSidekick::Addressable::Address\n        def self.kind\n          '\#{attribute}'.to_sym\n        end\n\n        \#{ attributes.collect {|a| \"def self.\#{a}?; \#{a == attribute ? 'true' : 'false'}; end\" }.join(\"\\n\") }\n\n        def kind\n          '\#{attribute}'.to_sym\n        end\n\n        \#{ attributes.collect {|a| \"def \#{a}?; \#{a == attribute ? 'true' : 'false'}; end\" }.join(\"\\n\") }\n      end\n      ADDRESS\n      eval address_class, TOPLEVEL_BINDING\n\n      has_one \"\#{attribute}_address\".to_sym,\n      :class_name => \"\#{attribute.to_s.pluralize.classify}Address\",\n      :as => :addressable,\n      :dependent => :destroy\n\n      class_eval(<<-END, __FILE__, __LINE__+1)\n        def build_\#{attribute}_address_with_addressable(attributes={}, options={})\n          build_\#{attribute}_address_without_addressable(attributes.merge(:addressable => self), options)\n        end\n        alias_method_chain :build_\#{attribute}_address, :addressable\n\n        def find_\#{attribute}_address(options={})\n          find_address(:\#{attribute}, options)\n        end\n\n        def find_default_\#{attribute}_address\n          find_default_address(:\#{attribute})\n        end\n        alias_method :default_\#{attribute}_address, :find_default_\#{attribute}_address\n\n        def find_or_build_\#{attribute}_address(options={})\n          find_or_build_address(:\#{attribute}, options)\n        end\n\n        def find_\#{attribute}_address_or_clone_from(from_address, options={})\n          find_or_clone_address(:\#{attribute}, from_address, options)\n        end\n\n        def \#{attribute}_address_attributes=(attributes)\n          self.\#{attribute}_address ? self.\#{attribute}_address.attributes = attributes : self.build_\#{attribute}_address(attributes)\n        end\n      END\n    end\n  end\n\n  class_attribute :acts_as_addressable_options, :instance_writer => false\n  self.acts_as_addressable_options = {\n    :attributes       => attributes,\n    :association_type => options[:has_one] ? :has_one : :has_many\n  }\n\n  include MerchantSidekick::Addressable::InstanceMethods\n  extend MerchantSidekick::Addressable::SingletonMethods\nend\n", __FILE__, __LINE__+1)

#has_addresses(*arguments) ⇒ Object

Defines a single address or a single address per address type



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# File 'lib/merchant_sidekick/addressable/addressable.rb', line 138

def has_addresses(*arguments)
  attributes, options = [], {:has_one => false, :has_many => true}
  arguments.each do |argument|
    case argument.class.name
    when 'Hash'
      options = defaults.merge(argument)
    else
      attributes << argument
    end
  end

  has_many :addresses, :as => :addressable, :dependent => :destroy,
  :class_name => "MerchantSidekick::Addressable::Address"

  attributes.each do |attribute|
    address_class = "      class \#{attribute.to_s.pluralize.classify}Address < MerchantSidekick::Addressable::Address\n        def self.kind\n          '\#{attribute}'.to_sym\n        end\n\n        \#{ attributes.collect {|a| \"def self.\#{a}?; \#{a == attribute ? 'true' : 'false'}; end\" }.join(\"\\n\") }\n\n        def kind\n          '\#{attribute}'.to_sym\n        end\n\n        \#{ attributes.collect {|a| \"def \#{a}?; \#{a == attribute ? 'true' : 'false'}; end\" }.join(\"\\n\") }\n      end\n    ADDRESS\n    eval address_class, TOPLEVEL_BINDING\n\n    has_many \"\#{attribute.to_s.classify}Address\".pluralize.underscore.to_sym,\n    :class_name => \"\#{attribute.to_s.pluralize.classify}Address\",\n    :as => :addressable,\n    :dependent => :destroy\n\n    class_eval(<<-END, __FILE__, __LINE__+1)\n      def find_\#{attribute}_addresses(options={})\n        find_addresses(:all, :\#{attribute}, options)\n      end\n\n      def find_default_\#{attribute}_address\n        find_default_address(:\#{attribute})\n      end\n      alias_method :default_\#{attribute}_address, :find_default_\#{attribute}_address\n\n      def find_or_build_\#{attribute}_address(options={})\n        find_or_build_address(:\#{attribute}, options)\n      end\n\n      def find_\#{attribute}_address_or_clone_from(from_address, options={})\n        find_or_clone_address(:\#{attribute}, from_address, options)\n      end\n    END\n  end\n\n  class_attribute :acts_as_addressable_options, :instance_writer => false\n  self.acts_as_addressable_options = {\n    :attributes       => attributes,\n    :association_type => options[:has_one] ? :has_one : :has_many\n  }\n\n  include MerchantSidekick::Addressable::InstanceMethods\n  extend MerchantSidekick::Addressable::SingletonMethods\nend\n"