einundzwanzig-app/app/Models/LibraryItem.php

<?php

namespace App\Models;

use App\Models\Concerns\SetsCreatedBy;
use App\Support\CustomFeedItem;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Support\Facades\Cookie;
use Spatie\EloquentSortable\Sortable;
use Spatie\EloquentSortable\SortableTrait;
use Spatie\Feed\Feedable;
use Spatie\Image\Enums\Fit;
use Spatie\MediaLibrary\HasMedia;
use Spatie\MediaLibrary\InteractsWithMedia;
use Spatie\MediaLibrary\MediaCollections\Models\Media;
use Spatie\ModelStatus\HasStatuses;
use Spatie\Sluggable\HasSlug;
use Spatie\Sluggable\SlugOptions;
use Spatie\Tags\HasTags;

class LibraryItem extends Model implements Feedable, HasMedia, Sortable
{
    use HasFactory;
    use HasSlug;
    use HasStatuses;
    use HasTags;
    use InteractsWithMedia;
    use SetsCreatedBy;
    use SortableTrait;

    /**
     * The attributes that aren't mass assignable.
     *
     * @var array
     */
    protected $guarded = [];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
        'id' => 'integer',
        'lecturer_id' => 'integer',
        'library_id' => 'integer',
    ];

    public static function getFeedItems()
    {
        return self::query()
            ->with([
                'media',
                'lecturer',
            ])
            ->where('news', true)
            ->where('approved', true)
            ->orderByDesc('created_at')
            ->get();
    }

    public function getSlugOptions(): SlugOptions
    {
        return SlugOptions::create()
            ->generateSlugsFrom(['name'])
            ->saveSlugsTo('slug')
            ->usingLanguage(Cookie::get('lang', config('app.locale')));
    }

    public function registerMediaConversions(?Media $media = null): void
    {
        $this
            ->addMediaConversion('preview')
            ->fit(Fit::Crop, 300, 300)
            ->nonQueued();
        $this->addMediaConversion('seo')
            ->fit(Fit::Crop, 1200, 630)
            ->nonQueued();
        $this->addMediaConversion('thumb')
            ->fit(Fit::Crop, 130, 130)
            ->width(130)
            ->height(130);
    }

    public function registerMediaCollections(): void
    {
        $this->addMediaCollection('main')
            ->acceptsMimeTypes(['image/jpeg', 'image/png', 'image/gif', 'image/webp'])
            ->singleFile()
            ->useFallbackUrl(asset('img/einundzwanzig.png'));
        $this->addMediaCollection('single_file')
            ->acceptsMimeTypes([
                'application/pdf', 'application/zip', 'application/octet-stream', 'application/x-zip-compressed',
                'multipart/x-zip',
            ])
            ->singleFile();
        $this->addMediaCollection('images')
            ->acceptsMimeTypes(['image/jpeg', 'image/png', 'image/gif', 'image/webp'])
            ->useFallbackUrl(asset('img/einundzwanzig.png'));
    }

    public function createdBy(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    public function lecturer(): BelongsTo
    {
        return $this->belongsTo(Lecturer::class);
    }

    public function episode(): BelongsTo
    {
        return $this->belongsTo(Episode::class);
    }

    /*
     * This string will be used in notifications on what a new comment
     * was made.
     */

    public function libraries(): BelongsToMany
    {
        return $this->belongsToMany(Library::class);
    }

    public function toFeedItem(): CustomFeedItem
    {
        return CustomFeedItem::create()
            ->id('news/'.$this->slug)
            ->title($this->name)
            ->content($this->value)
            ->enclosure($this->getFirstMediaUrl('main'))
            ->enclosureLength($this->getFirstMedia('main')->size)
            ->enclosureType($this->getFirstMedia('main')->mime_type)
            ->summary($this->excerpt)
            ->updated($this->updated_at)
            ->image($this->getFirstMediaUrl('main'))
            ->link(url()->route('article.view', ['libraryItem' => $this]))
            ->authorName($this->lecturer->name);
    }
}