Module: ActiveRecord::Store::ClassMethods

Defined in:
activerecord/lib/active_record/store.rb

Instance Method Summary collapse

Instance Method Details

#_store_accessors_moduleObject

:nodoc:


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# File 'activerecord/lib/active_record/store.rb', line 102

def _store_accessors_module # :nodoc:
  @_store_accessors_module ||= begin
    mod = Module.new
    include mod
    mod
  end
end

#store(store_attribute, options = {}) ⇒ Object


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# File 'activerecord/lib/active_record/store.rb', line 75

def store(store_attribute, options = {})
  serialize store_attribute, IndifferentCoder.new(options[:coder])
  store_accessor(store_attribute, options[:accessors]) if options.has_key? :accessors
end

#store_accessor(store_attribute, *keys) ⇒ Object


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# File 'activerecord/lib/active_record/store.rb', line 80

def store_accessor(store_attribute, *keys)
  keys = keys.flatten

  _store_accessors_module.module_eval do
    keys.each do |key|
      define_method("#{key}=") do |value|
        write_store_attribute(store_attribute, key, value)
      end

      define_method(key) do
        read_store_attribute(store_attribute, key)
      end
    end
  end

  # assign new store attribute and create new hash to ensure that each class in the hierarchy
  # has its own hash of stored attributes.
  self.local_stored_attributes ||= {}
  self.local_stored_attributes[store_attribute] ||= []
  self.local_stored_attributes[store_attribute] |= keys
end

#stored_attributesObject


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# File 'activerecord/lib/active_record/store.rb', line 110

def stored_attributes
  parent = superclass.respond_to?(:stored_attributes) ? superclass.stored_attributes : {}
  if self.local_stored_attributes
    parent.merge!(self.local_stored_attributes) { |k, a, b| a | b }
  end
  parent
end