62 lines
1.7 KiB
Ruby
62 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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module ActionController #:nodoc:
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module Flash
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extend ActiveSupport::Concern
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included do
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class_attribute :_flash_types, instance_accessor: false, default: []
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delegate :flash, to: :request
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add_flash_types(:alert, :notice)
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end
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module ClassMethods
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# Creates new flash types. You can pass as many types as you want to create
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# flash types other than the default <tt>alert</tt> and <tt>notice</tt> in
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# your controllers and views. For instance:
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#
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# # in application_controller.rb
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# class ApplicationController < ActionController::Base
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# add_flash_types :warning
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# end
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#
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# # in your controller
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# redirect_to user_path(@user), warning: "Incomplete profile"
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#
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# # in your view
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# <%= warning %>
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#
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# This method will automatically define a new method for each of the given
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# names, and it will be available in your views.
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def add_flash_types(*types)
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types.each do |type|
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next if _flash_types.include?(type)
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define_method(type) do
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request.flash[type]
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end
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helper_method(type) if respond_to?(:helper_method)
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self._flash_types += [type]
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end
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end
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end
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private
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def redirect_to(options = {}, response_options_and_flash = {}) #:doc:
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self.class._flash_types.each do |flash_type|
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if type = response_options_and_flash.delete(flash_type)
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flash[flash_type] = type
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end
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end
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if other_flashes = response_options_and_flash.delete(:flash)
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flash.update(other_flashes)
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end
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super(options, response_options_and_flash)
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end
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end
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end
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