hasMany(\Spatie\MediaLibrary\MediaCollections\Models\Media::class, 'directory_id'); } public function parent(): BelongsTo { return $this->belongsTo(self::class, 'parent_id'); } public function children(): HasMany { return $this->hasMany(self::class, 'parent_id'); } public function creator(): BelongsTo { return $this->belongsTo(User::class, 'creator_id'); } public function createdBy(): BelongsTo { return $this->belongsTo(User::class, 'created_by'); } }