Possibility to display custom fields on relation table

[vincent-tarrit]

🚀 Feature Request: Support for displaying related model custom fields in relation managers

Hello 👋

I’m using Relaticle Custom Fields with Filament, and I have a scenario where I’d like to display custom fields of a related model inside a relation manager table.

Example use case

I have two models:

Registration — belongs to a Member

Member — has custom fields defined with Relaticle

In my RegistrationRelationManager, I’d like to display the custom fields of the related Member directly in the table.

Something like:

CustomFields::table()
    ->forModel(Member::class)
    ->forRelation('member')
    ->columns();

Currently, I’ve written a custom helper to make this work — it displays the fields correctly — but it also requires custom logic to make filters and sorting work, since the CustomFields columns expect the main record to be a HasCustomFields model.

💡 Feature idea

Would it be possible to extend the forModel() builder (or add a new method, e.g. forRelation('member')) so that the generated columns automatically:

Resolve the related model ($record->member) internally

Handle filters/sorting on related custom fields out of the box

This would make relation-based custom field displays much cleaner and more consistent with the rest of the API.

❤️ Thank you

Thanks for the great work on this package — it’s super powerful already!
This feature would make it even easier to integrate custom fields in more complex Filament setups.