Extension for edit Nested Set tree

Include widget and behavior for edit Nested Set tree

Installation

The preferred way to install this extension is through composer.

Either run

composer require ale10257/yii2-ext-for-work-nested-set "dev-master"

or add

"ale10257/yii2-ext-for-work-nested-set": "dev-master"

to the require section of your composer.json file.

Capabilities

1. Generating a menu tree as a table (use Nested Set tree)

2. Drag & Drop rows table

3. Save result in DB

Example table before move

Move

After move

Important

Only siblings elements can be dragged!!!

Usage

Model

Set up the model as here: https://github.com/creocoder/yii2-nested-sets and determine the constant SITE_ROOT_NAME and behaviors

<?php
use creocoder\nestedsets\NestedSetsBehavior;
use ale10257\ext\ChangeTreeBehavior;

//...

const SITE_ROOT_NAME = 'My_SITE_ROOT';

//...

    public function behaviors()
    {
        return [
            [
                'class' => NestedSetsBehavior::className(),
                'treeAttribute' => 'tree',
            ],
            [
                'class' => ChangeTreeBehavior::className(),
                'rootSite' => SITE_ROOT_NAME
            ]
        ];
    }
      
//...
?>

View index.php for Category

//...
    <?php if($data) : ?>
        <div class="category-index">
            <h1><?= Html::encode($this->title) ?></h1>
                <?= $this->render('tree', ['data' => $data]) ?>
        </div>
    <?php endif ?>
//...

View tree.php

<?php
use ale10257\ext\GetTreeWidget;
use yii\helpers\Url;
//Number tree in your Nested Set tree

echo GetTreeWidget::widget([
        'options' => [
            'data' => $data,
            // action for ajax request for edit tree
            'urlChangeTree' => Url::to(['/admin/category/update-tree']), 
            'urlUpdateTree' => Url::to(['/admin/category/update']),
            'urlDeleteTree' => Url::to(['/admin/category/delete']),
            'urlAddItem' => Url::to(['/admin/category/create']),
            // name field in your table for view
            'fieldForTitleItem' => 'name',
        ]
    ]); 
?>

Controller

<?php

//...
    
    public function actionIndex()
    {
        $category = new Category;
        return $this->render('index', [
            'data' => $category->getTree(),
        ]);
    }
//...  
    //accepts the ajax request  
    public function actionUpdateTree()
    {
        if (Yii::$app->request->isAjax) {
            $model = new Category();
            $post = Yii::$app->request->post();
            return $this->renderPartial('tree', ['data' => $model->updateTree($post)]);
        }
        return Yii::$app->request->referrer;
    }    
//...
?>