Sha256: 3075ead2c5208e0ba7d6ed30ca94423dc4efe7d49c9c72b3db467b5436d1c373
Contents?: true
Size: 1.55 KB
Versions: 17
Compression:
Stored size: 1.55 KB
Contents
module Draper
module DecoratesAssigned
# @overload decorates_assigned(*variables, options = {})
# Defines a helper method to access decorated instance variables.
#
# @example
# # app/controllers/articles_controller.rb
# class ArticlesController < ApplicationController
# decorates_assigned :article
#
# def show
# @article = Article.find(params[:id])
# end
# end
#
# # app/views/articles/show.html.erb
# <%= article.decorated_title %>
#
# @param [Symbols*] variables
# names of the instance variables to decorate (without the `@`).
# @param [Hash] options
# @option options [Decorator, CollectionDecorator] :with (nil)
# decorator class to use. If nil, it is inferred from the instance
# variable.
# @option options [Hash, #call] :context
# extra data to be stored in the decorator. If a Proc is given, it will
# be passed the controller and should return a new context hash.
def decorates_assigned(*variables)
factory = Draper::Factory.new(variables.extract_options!)
variables.each do |variable|
undecorated = "@#{variable}"
decorated = "@decorated_#{variable}"
define_method variable do
return instance_variable_get(decorated) if instance_variable_defined?(decorated)
instance_variable_set decorated, factory.decorate(instance_variable_get(undecorated), context_args: self)
end
helper_method variable
end
end
end
end
Version data entries
17 entries across 17 versions & 4 rubygems