renderable_partial.rb

   1 module ActionView
   2   # NOTE: The template that this mixin is being included into is frozen
   3   # so you cannot set or modify any instance variables
   4   module RenderablePartial #:nodoc:
   5     extend ActiveSupport::Memoizable
   6
   7     def variable_name
   8       name.sub(/\A_/, '').to_sym
   9     end
  10     memoize :variable_name
  11
  12     def counter_name
  13       "#{variable_name}_counter".to_sym
  14     end
  15     memoize :counter_name
  16
  17     def render(view, local_assigns = {})
  18       if defined? ActionController
  19         ActionController::Base.benchmark("Rendered #{path_without_format_and_extension}", Logger::DEBUG, false) do
  20           super
  21         end
  22       else
  23         super
  24       end
  25     end
  26
  27     def render_partial(view, object = nil, local_assigns = {}, as = nil)
  28       object ||= local_assigns[:object] ||
  29         local_assigns[variable_name]
  30
  31       if view.respond_to?(:controller)
  32         ivar = :"@#{variable_name}"
  33         object ||=
  34           if view.controller.instance_variable_defined?(ivar)
  35             ActiveSupport::Deprecation::DeprecatedObjectProxy.new(
  36               view.controller.instance_variable_get(ivar),
  37               "#{ivar} will no longer be implicitly assigned to #{variable_name}")
  38           end
  39       end
  40
  41       # Ensure correct object is reassigned to other accessors
  42       local_assigns[:object] = local_assigns[variable_name] = object
  43       local_assigns[as] = object if as
  44
  45       render_template(view, local_assigns)
  46     end
  47   end
  48 end