Creating a Rails partial that is model-agnostic

问题

I have the two Ruby on Rails models SafetyTest and TeamDue, and want to create a partial called _seasonal.html.erb that can work with either models.

The real problem is adding a link to create a new instance. For example, it would be this code for just SafetyTest:

<%= link_to new_safety_test_path %>   

Now I want to be able to specify in my view, when I'm rendering _seasonal.html.erb, whether I want such a link for SafetyTest or TeamDue . I'm not sure what local to pass to this partial so that it creates the right new link without making a mess.

How should I go about doing this?

回答1:

Take a look at Polymorphic URL helpers.

来源：https://stackoverflow.com/questions/14075790/creating-a-rails-partial-that-is-model-agnostic