How can I access polymorphic_path inside a model in Rails 4?

问题

Pretty simple, I want to use the polymorphic_path method inside a Rails 4 model. Yes I know it's poor separation of concerns. And I know about Rails.application.routes.url_helpers, but polymorphic_path isn't in there.

回答1:

Try including also PolymorphicRoutes:

include ActionDispatch::Routing::PolymorphicRoutes
include Rails.application.routes.url_helpers

def link
  polymorphic_path(self)
end

来源：https://stackoverflow.com/questions/27003252/how-can-i-access-polymorphic-path-inside-a-model-in-rails-4