Quick filters (tags)

# Basics

Sometimes there is a need to create filters (results a selection) a set and display it on the listing. Tags have been created for such situations. 

namespace App\MoonShine\Resources;
 
use App\Models\Post;
use Illuminate\Database\Eloquent\Builder;
use MoonShine\QueryTags\QueryTag; 
use MoonShine\Resources\ModelResource;
 
class PostResource extends ModelResource
{
    protected string $model = Post::class;
 
    protected string $title = 'Posts';
 
    //...
 
    public function queryTags(): array 
    {
        return [
            QueryTag::make(
                'Post with author', // Tag Title
                fn(Builder $query) => $query->whereNotNull('author_id') // Query builder
            )
        ];
    } 
 
    //...
}

# Icon

You can add an icon to a tag using the icon() method. 

use Illuminate\Database\Eloquent\Builder;
use MoonShine\QueryTags\QueryTag;
 
//...
 
QueryTag::make(
    'Post without an author',
    fn(Builder $query) => $query->whereNull('author_id')
)
    ->icon('heroicons.users')

For more detailed information, please refer to the section Icons

# Active item

You can make QueryTag active by default. To do this, you need to use the default() method. 

default(Closure|bool|null $condition = null)
use Illuminate\Database\Eloquent\Builder;
use MoonShine\QueryTags\QueryTag;
 
//...
 
QueryTag::make(
    'All posts',
    fn(Builder $query) => $query
)
    ->default()

# Display condition

You may want to display tags only under certain conditions, To do this, you can use the canSee() method, which needs to pass a callback function that returns TRUE or FALSE. 

use Illuminate\Database\Eloquent\Builder;
use MoonShine\QueryTags\QueryTag;
 
//...
 
QueryTag::make(
    'Post with author', // Tag title
    fn(Builder $query) => $query->whereNotNull('author_id')
)
    ->canSee(fn() => auth()->user()->moonshine_user_role_id === 1)

# Alias

By default, the value for the URL is generated automatically from the label parameter. In this case, all non-Latin alphabet characters are replaced with the corresponding transliteration 'Заголовок' => 'zagolovok'.

The alias() method allows you to set your own value for the URL. 

use Illuminate\Database\Eloquent\Builder;
use MoonShine\QueryTags\QueryTag;
 
//...
 
QueryTag::make(
    'Archived Posts',
    fn(Builder $query) => $query->where('is_archived', true)
)
    ->alias('archive')
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