How to use polyorphic_path in lib / module in Rails 4

Question

I want to call polymorphic_path in a helper module located in lib/my_module.rb .

I tried the following from this answer , which works in a model, but not in my module:

 module MyModule include ActionDispatch::Routing::PolymorphicRoutes include Rails.application.routes.url_helpers def link(model) polymorphic_path(model) end end 

I get:

 undefined method `polymorphic_path' for MyModule:Module 

Btw, I load my module through config.autoload_paths += %W(#{config.root}/lib) in config/application.rb .

Answer 1

Turns out you need to create a class to properly include stuff in ruby, for example:

 class MyClass include ActionDispatch::Routing::UrlFor include Rails.application.routes.url_helpers def link(model) polymorphic_path(model) end end