如何在Rails 4中访问模型内​​的polymorphic_path？ [英] How can I access polymorphic_path inside a model in Rails 4?

问题描述

非常简单，我想在Rails 4模型中使用 polymorphic_path 方法。是的，我知道关注点分离不良。而且我知道 Rails.application.routes.url_helpers ，但是 polymorphic_path 不在其中。

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.

推荐答案

尝试还包括 PolymorphicRoutes ：

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

def link
  polymorphic_path(self)
end

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