FilamentF
Filament•3y ago
Ali Mahdavi

Need Form Field like Select without column on database . how can do ?

I need Select Form Field for trigger some conditions like show another fields or set default value for some another.
I create this :
Select::make('templates')
  ->options(Template::all()->pluck('title', 'id'))
  ->native(false)
  ->live()
  ->afterStateUpdated(
      fn (Set $set, ?string $state) =>
      $set('description', Template::firstWhere('id', $state)->body)
  ),


but problem when creating or editing has an error :
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'templates' in 'field list'

how can add form field to form without saving on database
image.png
Solution
add ->dehydrated(false) on the field.

https://filamentphp.com/docs/3.x/forms/advanced#preventing-a-field-from-being-dehydrated
Advanced forms - Form Builder - Filament
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