add media stuff

app/Models/Course.php

@@ -4,10 +4,15 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Spatie\Image\Manipulations;
+use Spatie\MediaLibrary\HasMedia;
+use Spatie\MediaLibrary\InteractsWithMedia;
+use Spatie\MediaLibrary\MediaCollections\Models\Media;
 
-class Course extends Model
+class Course extends Model implements HasMedia
 {
     use HasFactory;
+    use InteractsWithMedia;
 
     /**
      * The attributes that aren't mass assignable.
@@ -26,6 +31,27 @@ class Course extends Model
         'lecturer_id' => 'integer',
     ];
 
+    public function registerMediaConversions(Media $media = null): void
+    {
+        $this
+            ->addMediaConversion('preview')
+            ->fit(Manipulations::FIT_CROP, 300, 300)
+            ->nonQueued();
+        $this->addMediaConversion('thumb')
+             ->fit(Manipulations::FIT_CROP, 130, 130)
+             ->width(130)
+             ->height(130);
+    }
+
+    public function registerMediaCollections(): void
+    {
+        $this->addMediaCollection('logo')
+             ->singleFile()
+             ->useFallbackUrl(asset('img/einundzwanzig-cover-lesestunde.png'));
+        $this->addMediaCollection('images')
+             ->useFallbackUrl(asset('img/einundzwanzig-cover-lesestunde.png'));
+    }
+
     public function categories(): \Illuminate\Database\Eloquent\Relations\BelongsToMany
     {
         return $this->belongsToMany(Category::class);