1. Go to this page and download the library: Download lispa/yii2-tree-manager library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
lispa / yii2-tree-manager example snippets
namespace frontend\models;
use Yii;
class Tree extends \kartik\tree\models\Tree
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'tbl_tree';
}
}
namespace frontend\models;
use Yii;
class Tree extends \yii\db\ActiveRecord
{
use kartik\tree\models\TreeTrait.
/**
* @inheritdoc
*/
public static function tableName()
{
return 'tbl_tree';
}
}
use kartik\tree\TreeView;
echo TreeView::widget([
// single query fetch to render the tree
'query' => Tree::find()->addOrderBy('root, lft'),
'headingOptions' => ['label' => 'Categories'],
'isAdmin' => false, // optional (toggle to enable admin mode)
'displayValue' => 1, // initial display value
//'softDelete' => true, // normally not needed to change
//'cacheSettings' => ['enableCache' => true] // normally not needed to change
]);
use kartik\tree\TreeViewInput;
echo TreeViewInput::widget([
// single query fetch to render the tree
'query' => Tree::find()->addOrderBy('root, lft'),
'headingOptions' => ['label' => 'Categories'],
'name' => 'kv-product', // input name
'value' => '1,2,3', // values selected (comma separated for multiple select)
'asDropdown' => true, // will render the tree input widget as a dropdown.
'multiple' => true, // set to false if you do not need multiple selection
'fontAwesome' => true, // render font awesome icons
'rootOptions' => [
'label' => '<i class="fa fa-tree"></i>',
'class'=>'text-success'
], // custom root label
//'options' => ['disabled' => true],
]);