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Class: ActionView::Renderer

Relationships & Source Files
Inherits: Object
Defined in: actionview/lib/action_view/renderer/renderer.rb

Overview

This is the main entry point for rendering. It basically delegates to other objects like TemplateRenderer and PartialRenderer which actually renders the template.

The Renderer will parse the options from the #render or #render_body method and render a partial or a template based on the options. The TemplateRenderer and PartialRenderer objects are wrappers which do all the setup and logic necessary to render a view and a new object is created each time #render is called.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(lookup_context) ⇒ Renderer

[ GitHub ] 

  


# File 'actionview/lib/action_view/renderer/renderer.rb', line 14



def initialize(lookup_context)
  @lookup_context = lookup_context
end


  







Instance Attribute Details



  

    #lookup_context   (rw)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/renderer/renderer.rb', line 12



attr_accessor :lookup_context


  







Instance Method Details



  

    #render(context, options)  
  



  

    

Main render entry point shared by AV and AC.


  



  [ GitHub ]


  

  


# File 'actionview/lib/action_view/renderer/renderer.rb', line 19



def render(context, options)
  if options.respond_to?(:permitted?) && !options.permitted?
    raise ArgumentError, "render parameters are not permitted"
  end

  if options.key?(:partial)
    render_partial(context, options)
  else
    render_template(context, options)
  end
end


  








  

    #render_body(context, options)  
  



  

    

Render but returns a valid ::Rack body. If fibers are defined, we return a streaming body that renders the template piece by piece.



Note that partials are not supported to be rendered with streaming, so in such cases, we just wrap them in an array.


  



  [ GitHub ]


  

  


# File 'actionview/lib/action_view/renderer/renderer.rb', line 36



def render_body(context, options)
  if options.key?(:partial)
    [render_partial(context, options)]
  else
    StreamingTemplateRenderer.new(@lookup_context).render(context, options)
  end
end