вы используете October CMS
, поэтому вы можете просто использовать traits nested-tree
документы: https://octobercms.com/docs/database/traits#nested-tree
class Cat extends Model
{
use \October\Rain\Database\Traits\NestedTree;
}
Теперь
$model = Cat::where('slug', $param_slug)->first();
, а затем
$model->getEagerRoot(); // Returns a list of all root nodes, with ->children eager loaded.
// OR
$model->getEagerChildren(); // Returns direct child nodes, with ->children eager loaded.
Вы можете иметь ton of options
https://github.com/octobercms/library/blob/master/src/Database/Traits/NestedTree.php
/* General access methods:
*
* $model->getRoot(); // Returns the highest parent of a node.
* $model->getRootList(); // Returns an indented array of key and value columns from root.
* $model->getParent(); // The direct parent node.
* $model->getParents(); // Returns all parents up the tree.
* $model->getParentsAndSelf(); // Returns all parents up the tree and self.
* $model->getChildren(); // Set of all direct child nodes.
* $model->getSiblings(); // Return all siblings (parent's children).
* $model->getSiblingsAndSelf(); // Return all siblings and self.
* $model->getLeaves(); // Returns all final nodes without children.
* $model->getDepth(); // Returns the depth of a current node.
* $model->getChildCount(); // Returns number of all children.
*
* Query builder methods:
*
* $query->withoutNode(); // Filters a specific node from the results.
* $query->withoutSelf(); // Filters current node from the results.
* $query->withoutRoot(); // Filters root from the results.
* $query->children(); // Filters as direct children down the tree.
* $query->allChildren(); // Filters as all children down the tree.
* $query->parent(); // Filters as direct parent up the tree.
* $query->parents(); // Filters as all parents up the tree.
* $query->siblings(); // Filters as all siblings (parent's children).
* $query->leaves(); // Filters as all final nodes without children.
* $query->getNested(); // Returns an eager loaded collection of results.
* $query->listsNested(); // Returns an indented array of key and value columns.
*
* Flat result access methods:
*
* $model->getAll(); // Returns everything in correct order.
* $model->getAllRoot(); // Returns all root nodes.
* $model->getAllChildren(); // Returns all children down the tree.
* $model->getAllChildrenAndSelf(); // Returns all children and self.
*
* Eager loaded access methods:
*
* $model->getEagerRoot(); // Returns a list of all root nodes, with ->children eager loaded.
* $model->getEagerChildren(); // Returns direct child nodes, with ->children eager loaded.
*
*/
пожалуйста, проверьте его действительно быстрый и удобный способ для родителейи отношения с детьми.
если есть сомнения, пожалуйста, прокомментируйте.