Ruby on Rails latest stable (v5.2.3) - 0 notes - Superclass: Object

ActionController::Renderer allows you to render arbitrary templates without requirement of being in controller actions.

You get a concrete renderer class by invoking ActionController::Base#renderer. For example:


It allows you to call method #render directly.

ApplicationController.renderer.render template: '...'

You can use this shortcut in a controller, instead of the previous example:

ApplicationController.render template: '...'

#render allows you to use the same options that you can use when rendering in a controller. For example:

FooController.render :action, locals: { ... }, assigns: { ... }

The template will be rendered in a Rack environment which is accessible through ActionController::Renderer#env. You can set it up in two ways:

  • by changing renderer defaults, like

    ApplicationController.renderer.defaults # => hash with default Rack environment
  • by initializing an instance of renderer by passing it a custom environment.

    ApplicationController.renderer.new(method: 'post', https: true)


RACK_VALUE_TRANSLATION = { https: ->(v) { v ? "on" : "off" }, method: ->(v) { v.upcase }, }

IDENTITY = ->(_) { _ }

RACK_KEY_TRANSLATION = { http_host: "HTTP_HOST", https: "HTTPS", method: "REQUEST_METHOD", script_name: "SCRIPT_NAME", input: "rack.input" }

DEFAULTS = { http_host: "example.org", https: false, method: "get", script_name: "", input: "" }.freeze


[R] controller
[R] defaults
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