class

Renderer

v5.0.0.1 - Show latest stable - 0 notes - Superclass: Object

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

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

ApplicationController.renderer

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

actionpack/lib/action_controller/renderer.rb