Filters

To create filters, fields are also used: they are displayed only on the section main page.

To specify which fields to filter data by, enough in your model resource in the filters() method, return an array with the required fields.

If the method is missing or returns an empty array, then the filters will not be displayed

Some fields cannot participate in constructing a filtering request, therefore they will be automatically excluded from the filter list

namespace App\MoonShine\Resources;
 
use App\Models\Post;
use MoonShine\Fields\Text; 
use MoonShine\Resources\ModelResource;
 
class PostResource extends ModelResource
{
    protected string $model = Post::class;
 
    protected string $title = 'Posts';
 
    //...
 
    public function filters(): array 
    {
        return [
            Text::make('Title', 'title'),
        ];
    } 
 
    //...
}

Fields are a key element in building forms in the Moonshine admin panel.
More about Fields

If you need to cache the filters state, use the saveFilterState property in the resource 

namespace App\MoonShine\Resources;
 
use App\Models\Post;
use MoonShine\Resources\ModelResource;
 
class PostResource extends ModelResource
{
    protected string $model = Post::class;
 
    protected string $title = 'Posts';
 
    protected bool $saveFilterState = true; 
//...
}
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