https://github.com/p4bgroup/phalcon-nested-sets
Nested Set Model implementation for Phalcon Framework
https://github.com/p4bgroup/phalcon-nested-sets
behaviour nested-sets phalcon phalcon-framework tree
Last synced: 10 months ago
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Nested Set Model implementation for Phalcon Framework
- Host: GitHub
- URL: https://github.com/p4bgroup/phalcon-nested-sets
- Owner: P4BGroup
- License: mit
- Created: 2019-11-24T13:45:46.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2020-05-02T07:47:13.000Z (almost 6 years ago)
- Last Synced: 2025-04-15T09:12:08.423Z (10 months ago)
- Topics: behaviour, nested-sets, phalcon, phalcon-framework, tree
- Language: PHP
- Size: 2.87 MB
- Stars: 2
- Watchers: 4
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
Nested Set Behaviour
---
Phalcon implementation for tree / hierarchy through nested sets implementation.
It will calculate edges and depth for a category on creation, update and delete.
Moving "branches" is not supported (o sub-node with all it's sub-nodes) and won't be. This tool is meant to "react" to changes on a single record and keep the rest of the tree position in place.
prerequisites
---
Your DB must have parent, left, right, depth columns.
Example:
```SQL
CREATE TABLE `categories` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`name` CHAR(50) NULL DEFAULT NULL,
`parent_id` INT(11) NULL DEFAULT NULL,
`_left` INT(11) NULL DEFAULT NULL,
`_right` INT(11) NULL DEFAULT NULL,
`_depth` INT(11) NULL DEFAULT NULL,
PRIMARY KEY (`id`)
);
```
usage
---
```php
class MyModel extends \Phalcon\Mvc\Model {
public function initialize() {
$this->addBehaviour(new \P4BGroup\NestedSets\Behaviour());
}
}
```
references
---
* https://en.wikipedia.org/wiki/Nested_set_model
* https://explainextended.com/2009/09/29/adjacency-list-vs-nested-sets-mysql/
* https://medium.com/@Sumurai8/nested-sets-performant-attribute-calculation-on-collections-10289a30c0ab
usage
---
this behaviour will automatically calculate the edges and depth of each node on save / delete
Similar implementations on other frameworks
---
* https://github.com/etrepat/baum - laravel
* https://github.com/lazychaser/laravel-nestedset - laravel
* https://github.com/blt04/doctrine2-nestedset - doctrine
* https://github.com/bartko-s/stefano-tree - zend / pdo
* https://github.com/creocoder/yii2-nested-sets - yii