/**
* Update gallery images.
* @return void
*/
private function updateImages()
{
$old = [];
foreach ($this->object->images as $image) {
$old[$image->id] = $image;
}
// insert/update
foreach ($this->images as $data) {
$id = null;
if (!empty($data['id'])) {
$id = $data['id'];
}
if (array_key_exists($id, $old)) {
$image = $old[$id];
unset($old[$id]);
} else {
$image = new GalleryImage();
$image->gallery_id = $this->object->id;
}
$image->setAttributes($data);
Yii::$app->storage->storeObject($image);
$image->save(false);
}
// delete
foreach ($old as $image) {
Yii::$app->storage->removeObject($image);
$image->delete();
}
}
/**
* Images relation
* @return ActiveQuery
*/
public function getImages()
{
return $this->hasMany(GalleryImage::className(), ['gallery_id' => 'id']);
}