Module: HashPipe::SingletonMethods

Defined in:
lib/hashpipe.rb

Instance Method Summary collapse

Instance Method Details

#archived_attribute_definitions ⇒ Object

Returns the attachment definitions defined by each call to has_attached_file.



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# File 'lib/hashpipe.rb', line 40

def archived_attribute_definitions
  read_inheritable_attribute(:archived_attribute_definitions)
end

#backend ⇒ Object 



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# File 'lib/hashpipe.rb', line 44

def backend
  @backend ||= initialize_cache_klass(HashPipe::GlobalConfiguration.instance[:moneta_klass])
end

#hattr(*args) ⇒ Object 



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# File 'lib/hashpipe.rb', line 12

def hattr(*args)
  attribute = args.first

  options = args.extract_options!
  options.reverse_merge! :marshalled => false

  if archived_attribute_definitions.nil?
    write_inheritable_attribute(:archived_attribute_definitions, {})

    after_save :save_archived_attributes
    before_destroy :destroy_archived_attributes
  end

  archived_attribute_definitions[attribute] = options

  include InstanceMethods

  define_method attribute do
    archive_stash_for(attribute).value
  end

  define_method "#{attribute}=" do |value|
    archive_stash_for(attribute).value = value
  end
end

#initialize_cache_klass(cache_klass) ⇒ Object 



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# File 'lib/hashpipe.rb', line 48

def initialize_cache_klass(cache_klass)
  require_moneta_library_for(cache_klass)
  klass_const = cache_klass.respond_to?(:constantize) ? cache_klass.constantize : cache_klass
  klass_const.new HashPipe::GlobalConfiguration.instance[:moneta_options]
end

#require_moneta_library_for(cache_klass) ⇒ Object 



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# File 'lib/hashpipe.rb', line 54

def require_moneta_library_for(cache_klass)
  require cache_klass.to_s.gsub(/::/, '/').downcase
end