/usr/lib/ruby/vendor_ruby/action_controller/metal/renderers.rb is in ruby-actionpack 2:4.2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | require 'set'
module ActionController
# See <tt>Renderers.add</tt>
def self.add_renderer(key, &block)
Renderers.add(key, &block)
end
# See <tt>Renderers.remove</tt>
def self.remove_renderer(key)
Renderers.remove(key)
end
class MissingRenderer < LoadError
def initialize(format)
super "No renderer defined for format: #{format}"
end
end
module Renderers
extend ActiveSupport::Concern
included do
class_attribute :_renderers
self._renderers = Set.new.freeze
end
module ClassMethods
def use_renderers(*args)
renderers = _renderers + args
self._renderers = renderers.freeze
end
alias use_renderer use_renderers
end
def render_to_body(options)
_render_to_body_with_renderer(options) || super
end
def _render_to_body_with_renderer(options)
_renderers.each do |name|
if options.key?(name)
_process_options(options)
method_name = Renderers._render_with_renderer_method_name(name)
return send(method_name, options.delete(name), options)
end
end
nil
end
# A Set containing renderer names that correspond to available renderer procs.
# Default values are <tt>:json</tt>, <tt>:js</tt>, <tt>:xml</tt>.
RENDERERS = Set.new
def self._render_with_renderer_method_name(key)
"_render_with_renderer_#{key}"
end
# Adds a new renderer to call within controller actions.
# A renderer is invoked by passing its name as an option to
# <tt>AbstractController::Rendering#render</tt>. To create a renderer
# pass it a name and a block. The block takes two arguments, the first
# is the value paired with its key and the second is the remaining
# hash of options passed to +render+.
#
# Create a csv renderer:
#
# ActionController::Renderers.add :csv do |obj, options|
# filename = options[:filename] || 'data'
# str = obj.respond_to?(:to_csv) ? obj.to_csv : obj.to_s
# send_data str, type: Mime::CSV,
# disposition: "attachment; filename=#{filename}.csv"
# end
#
# Note that we used Mime::CSV for the csv mime type as it comes with Rails.
# For a custom renderer, you'll need to register a mime type with
# <tt>Mime::Type.register</tt>.
#
# To use the csv renderer in a controller action:
#
# def show
# @csvable = Csvable.find(params[:id])
# respond_to do |format|
# format.html
# format.csv { render csv: @csvable, filename: @csvable.name }
# end
# end
# To use renderers and their mime types in more concise ways, see
# <tt>ActionController::MimeResponds::ClassMethods.respond_to</tt>
def self.add(key, &block)
define_method(_render_with_renderer_method_name(key), &block)
RENDERERS << key.to_sym
end
# This method is the opposite of add method.
#
# Usage:
#
# ActionController::Renderers.remove(:csv)
def self.remove(key)
RENDERERS.delete(key.to_sym)
method_name = _render_with_renderer_method_name(key)
remove_method(method_name) if method_defined?(method_name)
end
module All
extend ActiveSupport::Concern
include Renderers
included do
self._renderers = RENDERERS
end
end
add :json do |json, options|
json = json.to_json(options) unless json.kind_of?(String)
if options[:callback].present?
if content_type.nil? || content_type == Mime::JSON
self.content_type = Mime::JS
end
"/**/#{options[:callback]}(#{json})"
else
self.content_type ||= Mime::JSON
json
end
end
add :js do |js, options|
self.content_type ||= Mime::JS
js.respond_to?(:to_js) ? js.to_js(options) : js
end
add :xml do |xml, options|
self.content_type ||= Mime::XML
xml.respond_to?(:to_xml) ? xml.to_xml(options) : xml
end
end
end
|