Support for conditional collection

[vicenteferreyra]

Hi there!

Is there any way of populating the select using the value of another input and refresh it when the other input changes?
e.g:

f.input(:user)
f.input(:posts,
        as: :searchable_select,
        collection: <user_selected_in_input>.posts
})

I would appreciate any help on this!

[tf]

This is not supported currently and will need additional custom JavaScript code to incorporate the current value of the other input in the options requests. You will probably be able to reuse option endpoints defined via searchable_select_options, though. There is support for passing custom parameters to options endpoints, but those need to be known when rendering the form. Select2 appears to support dynamically assembling the options URL (I did not check whether the these docs actually talk about the same Select2 version used by this gem). I imagine, additional custom logic will be needed to reset dependent selects when inputs change etc.

[vicenteferreyra]

Hey, thanks for your response. I actually do this by writting custom js but since I have been doing it so many times, I thought it could be a good feature.

[tf]

I agree. Happy to accept a PR. Just not sure what a minimal feature set could look like here.