render_partial

# File actionpack/lib/action_view/renderable_partial.rb, line 27
    def render_partial(view, object = nil, local_assigns = {}, as = nil)
      object ||= local_assigns[:object] || local_assigns[variable_name]

      if object.nil? && view.respond_to?(:controller)
        ivar = "@#{variable_name}""@#{variable_name}"
        object =
          if view.controller.instance_variable_defined?(ivar)
            ActiveSupport::Deprecation::DeprecatedObjectProxy.new(
              view.controller.instance_variable_get(ivar),
              "#{ivar} will no longer be implicitly assigned to #{variable_name}")
          end
      end

      # Ensure correct object is reassigned to other accessors
      local_assigns[:object] = local_assigns[variable_name] = object
      local_assigns[as] = object if as

      render_template(view, local_assigns)
    end