update model

app/Models/Media.php

@@ -4,8 +4,34 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Media extends Model
 {
     use HasFactory;
+
+    protected $fillable = ['parent_id', 'filename', 'path', 'type', 'metadata', 'size'];
+
+    protected $casts = [
+        'metadata' => 'array',
+    ];
+
+    /**
+     * Get the original media of this variation.
+     */
+    public function parent(): BelongsTo
+    {
+        return $this->belongsTo(Media::class, 'parent_id');
+    }
+
+    /**
+     * Get the variations for the media.
+     */
+    
+
+    public function variations(): HasMany
+    {
+        return $this->hasMany(Media::class, 'original_media_id');
+    }
 }