Module: Cms::Behaviors::InstanceMethods

Defined in:
lib/cms/behaviors/rendering.rb

Instance Method Summary collapse

Instance Method Details

#perform_render(controller) ⇒ Object 



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# File 'lib/cms/behaviors/rendering.rb', line 99

def perform_render(controller)
  return "Exception: #{@render_exception}" if @render_exception


  unless @controller
    # We haven't prepared to render. This should only happen when logged in, as we don't want
    # errors to bubble up and prevent the page being edited in that case.
    prepare_to_render(controller)
  end

  if self.respond_to?(:deleted) && self.deleted
    logger.error "Attempting to render deleted object: #{self.inspect}"
    msg = (@mode == 'edit' ?  %Q[<div class="error">This #{self.class.name} has been deleted.  Please remove this container from the page</div>] : '')
    return msg
  end

  # Create, Instantiate and Initialize the view
  view_class  = Class.new(ActionView::Base)      
  action_view = view_class.new(@controller.view_paths, {}, @controller)
    
  # Make helpers and instance vars available
  view_class.send(:include, @controller.class.master_helper_module)
  if $:.detect{|d| File.exists?(File.join(d, self.class.helper_path))}
    view_class.send(:include, self.class.helper_class)
  end
  
  # We want content_for to be called on the controller's view, not this inner view
  def action_view.content_for(name, content=nil, &block)
    @controller.instance_variable_get("@template").content_for(name, content, &block)
  end
  
  # Copy instance variables from this renderable object to it's view
  action_view.assigns = assigns_for_view
    
  if respond_to?(:inline_options) && self.inline_options && self.inline_options.has_key?(:inline)
    options = {:locals => {}}.merge(self.inline_options)
    ActionView::InlineTemplate.new(options[:inline], options[:type]).render(action_view, options[:locals])
  else
    action_view.render(:file => self.class.template_path)
  end
end

#prepare_to_render(controller) ⇒ Object 



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# File 'lib/cms/behaviors/rendering.rb', line 84

def prepare_to_render(controller)
  # Give this renderable a reference to the controller
  @controller = controller

  copy_instance_variables_from_controller!

  # This gives the view a reference to this object
  instance_variable_set(self.class.instance_variable_name_for_view, self)
    
  # This is like a controller action
  # We will call it if you have defined a render method
  # but if you haven't we won't
  render if respond_to?(:render)
end

#render_exception=(exception) ⇒ Object 



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# File 'lib/cms/behaviors/rendering.rb', line 141

def render_exception=(exception)
  @render_exception = exception
end