/**
* @inheritdoc
*/
public function init()
{
parent::init();
if (empty($this->attributes)) {
$this->attributes = [BaseActiveRecord::EVENT_BEFORE_INSERT => [$this->createdAtAttribute, $this->updatedAtAttribute], BaseActiveRecord::EVENT_BEFORE_UPDATE => $this->updatedAtAttribute];
}
}
/**
* @inheritdoc
*/
protected function getValue($event)
{
$isNewSlug = true;
if ($this->attribute !== null) {
$attributes = (array) $this->attribute;
/* @var $owner BaseActiveRecord */
$owner = $this->owner;
if (!empty($owner->{$this->slugAttribute})) {
$isNewSlug = false;
if (!$this->immutable) {
foreach ($attributes as $attribute) {
if ($owner->isAttributeChanged($attribute)) {
$isNewSlug = true;
break;
}
}
}
}
if ($isNewSlug) {
$slugParts = [];
foreach ($attributes as $attribute) {
$slugParts[] = $owner->{$attribute};
}
$slug = Inflector::slug(implode('-', $slugParts));
} else {
$slug = $owner->{$this->slugAttribute};
}
} else {
$slug = parent::getValue($event);
}
if ($this->ensureUnique && $isNewSlug) {
$baseSlug = $slug;
$iteration = 0;
while (!$this->validateSlug($slug)) {
$iteration++;
$slug = $this->generateUniqueSlug($baseSlug, $iteration);
}
}
return $slug;
}
