/**
* Delete children relation from current model.
*
* @param {?array|AbstractModel|int|string} $children Target children to delete, or all children of omitted.
* @param {?string} $collection Collection identifier of the relation, defaults to the model's collection name.
*/
protected function deleteDescendants($collection = '%', $children = null)
{
if ($collection === null) {
$collection = $this->collectionName();
}
if ($children === null) {
return Relation::deleteDescendants($this->identity(), $collection);
} else {
if (!is_array($children)) {
$children = (array) $children;
}
return array_reduce($children, function ($result, $child) use($collection) {
if ($child instanceof AbstractModel) {
$child = $child->identity();
}
return $result && Relation::delete($this->identity(), $child, $collection);
}, true);
}
}
