Class: I18n::Alchemy::Proxy

Inherits:
ActiveSupport::BasicObject
Includes:
AttributesParsing
Defined in:
lib/i18n_alchemy/proxy.rb

Overview

Depend on AS::BasicObject which has a “blank slate” - no methods.

Instance Method Summary collapse

Methods included from AttributesParsing

#assign_attributes, #attributes=, #update_attribute, #update_attributes, #update_attributes!

Constructor Details

#initialize(target, attributes = nil, *args) ⇒ Proxy

TODO: cannot assume _id is always a foreign key. Find a better way to find that and skip these columns.



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# File 'lib/i18n_alchemy/proxy.rb', line 9

def initialize(target, attributes=nil, *args)
  @target = target

  @localized_attributes = {}
  @localized_associations = []

  build_methods
  if active_record_compatible?
    build_attributes
    build_associations
  end

  assign_attributes(attributes, *args) if attributes
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*args, &block) ⇒ Object

Delegate all method calls that are not translated to the target object. As the proxy does not have any other method, there is no need to override :respond_to, just delegate it to the target as well.



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# File 'lib/i18n_alchemy/proxy.rb', line 55

def method_missing(*args, &block)
  @target.send(*args, &block)
end

Instance Method Details

#to_json(options = nil) ⇒ Object

Override to_json to always call to_json on the target object, instead of serializing the proxy object, that may issue circular references on Ruby 1.8.



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# File 'lib/i18n_alchemy/proxy.rb', line 32

def to_json(options = nil)
  @target.to_json(options)
end

#to_model ⇒ Object

Override to_model to always return the proxy, otherwise it returns the target object. This allows us to integrate with action view.



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# File 'lib/i18n_alchemy/proxy.rb', line 38

def to_model
  self
end

#to_param ⇒ Object

Override to_param to always return the proxy.to_param. This allow us to integrate with action view.



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# File 'lib/i18n_alchemy/proxy.rb', line 26

def to_param
  @target.to_param
end

#try(*a, &b) ⇒ Object

Allow calling localized methods with :try. If the method is not declared here, it’ll be delegated to the target, losing localization capabilities.



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# File 'lib/i18n_alchemy/proxy.rb', line 48

def try(*a, &b)
  __send__(*a, &b)
end