Rails路径的路径助手，带有安装引擎的参数

Question

Hi I have the following route:

mount Spree::Core::Engine, :at => ':city_name/', :as => :spree

that produces urls like /munich/path/in/engine or /new_york/path/in/engine

How can I use an url helper to produce such an url, that modifies the city and uses an url helper of the engine? If the engine would provide an url helper for a product (eg product_path(@product) ), is there something like

spree_path(:city_name => "munich").product_path(@product)

to produce an url like /munich/products/1 ?

Answer 1

这应该可以使用：

spree.product_path(@product, :city_name => "munich")

Answer 2

正确的方法是使用Engine自己的网址帮助器：

Spree::Core::Engine.routes.url_helpers.product_path