method

default_render

Importance_3
Ruby on Rails latest stable (v2.3.4) - 4 notes - Class: ActionController::Base
default_render(#:nodoc:) private

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November 4, 2008
2 thanks

RE: 1 render definition for many actions (cleaner)

Hi James,

Unfortunately that doesn’t work if you use the 

  @zombies

variable in the rendered template, which is why default_render was added as a patch AFAIK. :)

before_filter is called too soon, after_filter is called after an attempt at rendering is made, so default_render is the only option for this as far as I know.

November 4, 2008 - (v1.0.0 - v2.1.0)
1 thank

1 render definition for many actions (cleaner)

@arronwashington, you can just call render rather then using instance_eval to overwrite default_render, for example: 

  before_filter :render_filter, :only => [:zombies, :cool_zombies]

  def zombies
    @zombies = Zombie.find(:all)
  end

  def cool_zombies
    @zombies = Zombie.find(:all, :conditions => { :eats_humans => false, :is_hippie => true })
  end

  protected

  def render_filter
    # without instance_eval or overwriting default_render
    render :template => 'zombies/all'
  end
November 4, 2008
0 thanks

1 render definition for many actions.

Overriding default_render in especially useful when you have many actions that all render the same thing. 

  before_filter :render_filter, :only => [:zombies, :cool_zombies]

  def zombies
    @zombies = Zombie.find(:all)
  end

  def cool_zombies
    @zombies = Zombie.find(:all, :conditions => { :eats_humans => false, :is_hippie => true })
  end

  protected

  def render_filter
    instance_eval do
      def default_render
        render :template => 'zombies/all'
      end
    end
  end
November 5, 2008
0 thanks

RERE: 1 render definition for many actions (cleaner)

@arronwashington. Ah, so that’s the motivation for using default_render, thanks for clearing that up, thanks :)