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rails--rails/actionpack/lib/action_view/partial_template.rb

69 lines
2.1 KiB
Ruby

module ActionView #:nodoc:
class PartialTemplate < Template #:nodoc:
attr_reader :variable_name, :object, :as
def initialize(view, partial_path, object = nil, locals = {}, as = nil)
@view_controller = view.controller if view.respond_to?(:controller)
@as = as
set_path_and_variable_name!(partial_path)
super(view, @path, nil, locals)
add_object_to_local_assigns!(object)
# This is needed here in order to compile template with knowledge of 'counter'
initialize_counter!
# Prepare early. This is a performance optimization for partial collections
prepare!
end
def render
ActionController::Base.benchmark("Rendered #{@path.path_without_format_and_extension}", Logger::DEBUG, false) do
super
end
end
def render_member(object)
@locals[:object] = @locals[@variable_name] = object
@locals[as] = object if as
template = render_template
@locals[@counter_name] += 1
@locals.delete(as)
@locals.delete(@variable_name)
@locals.delete(:object)
template
end
def counter=(num)
@locals[@counter_name] = num
end
private
def add_object_to_local_assigns!(object)
@locals[:object] ||=
@locals[@variable_name] ||= object || @view_controller.instance_variable_get("@#{variable_name}")
@locals[as] ||= @locals[:object] if as
end
def set_path_and_variable_name!(partial_path)
if partial_path.include?('/')
@variable_name = File.basename(partial_path)
@path = "#{File.dirname(partial_path)}/_#{@variable_name}"
elsif @view_controller
@variable_name = partial_path
@path = "#{@view_controller.class.controller_path}/_#{@variable_name}"
else
@variable_name = partial_path
@path = "_#{@variable_name}"
end
@variable_name = @variable_name.sub(/\..*$/, '').to_sym
end
def initialize_counter!
@counter_name ||= "#{@variable_name}_counter".to_sym
@locals[@counter_name] = 0
end
end
end