F
Filament•2w ago
mmoollllee

set TextInput placeholder attribute live from other field

Having this 
$form
    ->schema([
        TextInput::make('title')
            ->required(),
        ...
        TextInput::make('seo_page_title')
            ->placeholder('This should reflect the "title" field to indicate default will be "title" if this field is empty.')
$form
    ->schema([
        TextInput::make('title')
            ->required(),
        ...
        TextInput::make('seo_page_title')
            ->placeholder('This should reflect the "title" field to indicate default will be "title" if this field is empty.')
How can I update the placeholder attribute live?
2 Replies
bernhard
bernhard•2w ago
TextInput::make('title')
    ->live()
    ->required(),

TextInput::make('seo_page_title')
    ->placeholder(fn($get) => "The title is " . $get("title"))
TextInput::make('title')
    ->live()
    ->required(),

TextInput::make('seo_page_title')
    ->placeholder(fn($get) => "The title is " . $get("title"))
You could/should customize it further. For example use: 
->live(onBlur: true)
->live(onBlur: true)
Or depending on your usecase 
->live(debounce: true)
->live(debounce: true)
mmoollllee
mmoolllleeOP•2w ago
Thank you so much and sorry for asking altough I could have found this in the documentation!

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