Search by Polymorphic Field

[jeremiahlukus]

• What were you trying to do?
  I have a Subscription Dashboard that has a field owner: Field::Polymorphic I would like to be able to search by owner attributes

• What versions are you running?

  • Rails gem "rails", "~> 6.1.0"
  • administrate latest

[pablobm]

Thank you for your report. Indeed, polymorphic fields are tricky and our search doesn't currently support them.

Fortunately there are ways around this. It's possible to provide your own controllers that override Administrate's behaviour. This is the basis of many customisations. In this case, overriding Administrate::ApplicationController#index would be a way to do it.

Having said that, I had a look and realised that the way things are hooked up, this is not so evident in the case of customising the search. To fix this, I have opened a PR that introduces a small change that should make this easier to do, as well as provides an example of how to do it (in the specs): #2096

[pablobm]

Closing in favour of #2076, which is more general of this whole issue.

[pablobm]

#2096 has been merged, offering a hook that can help here, along with an example.