Form with Textarea Content Preview

Filament 4

Content creation forms typically show only raw text from rich text or markdown editors, but Filament actions with custom views enable real-time formatted content preview directly within the form interface.

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How it works

To create this action, we first have to create our Fields:

app/Filament/Resources/Posts/Schemas/PostForm.php

// ...
RichEditor::make('rich_content')
    ->required()
    ->columnSpanFull(),
Textarea::make('markdown_content')
    ->required()
    ->columnSpanFull(),
// ...

Currently, they do nothing but store the content. From here, we want to add a new action with slideOver to our form:

The FULL tutorial is available after the purchase: in the Readme file of the official repository you would get invited to.

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