F
Filament•2mo ago
Ayman Alareqi

Call to a member function partiallyRender() on null" with partiallyRenderComponentsAfterStateUpdated

Hello everyone, I'm trying to use the new partiallyRenderComponentsAfterStateUpdated method in my Filament v4 form, but I'm encountering a Call to a member function partiallyRender() on null error. My goal is to conditionally show a FileUpload or TextInput field based on the value of a Select field, and use partial rendering for performance. Here is a simplified version of my code: 
Section::make(__('File Configuration'))
    ->schema([
        Select::make('file_type')
            ->live()
            ->options(...)
            ->required()
            ->partiallyRenderComponentsAfterStateUpdated(['file_path', 'asset_path']),

        FileUpload::make('file_path')
            ->visible(fn($get) => $get('file_type') === 'file'),

        TextInput::make('asset_path')
            ->visible(fn($get) => $get('file_type') === 'asset'),
    ]),
Section::make(__('File Configuration'))
    ->schema([
        Select::make('file_type')
            ->live()
            ->options(...)
            ->required()
            ->partiallyRenderComponentsAfterStateUpdated(['file_path', 'asset_path']),

        FileUpload::make('file_path')
            ->visible(fn($get) => $get('file_type') === 'file'),

        TextInput::make('asset_path')
            ->visible(fn($get) => $get('file_type') === 'asset'),
    ]),
My questions are: Is there a known issue or bug with partiallyRenderComponentsAfterStateUpdated that would cause this null error? Am I missing a required setup to use this feature correctly? Is there a specific way this method should be called within a Section or on a Select component?

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