This project illustrates the Filament Repeater field with positional element management. When selecting the top 3 tournament winner countries, each chosen country automatically becomes unavailable in the remaining dropdown selections to prevent duplicates.
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How it works
The whole logic of this live-updated form is in the Filament Resource file, in its form() method.
- We're using
Repeater::make()with->defaultItems(3)->addable(false)->deletable(false)to have strictly 3 items. - We load the options for the repeater Select from the Relationship of
Tournamentmodel, from methodcountry() - In the Select, we use the
->live()->disableOptionWhen()method and the$getvariable inside to define which options should be disabled - We use
->afterStateHydrated()in repeater to transform the results into the format we actually need to save to the DB.
The full code of that method:
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