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Sortable.php
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Sortable.php
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<?php
namespace shirase\grid\sortable;
use yii\base\Exception;
use yii\base\Widget;
use yii\data\ActiveDataProvider;
use yii\db\ActiveRecord;
use yii\helpers\Html;
use yii\helpers\Json;
use yii\web\HttpException;
class Sortable extends Widget
{
public $attribute = 'pos';
public $sortOptions = null;
public $sortItemsSelector;
/**
* @var ActiveDataProvider
*/
public $dataProvider;
public $containerSelector;
public function init()
{
if (!$this->dataProvider) {
throw new HttpException(500, 'dataProvider is required');
}
/**
* @var $model ActiveRecord
* @var $modelClass ActiveRecord
*/
$modelClass = $this->dataProvider->query->modelClass;
if(($model = new $modelClass()) && $model->hasMethod('insertBefore')) {
$sort = $this->dataProvider->getSort();
if(!$sort) return;
if(!$sort->defaultOrder) {
$sort->defaultOrder = array($this->attribute=>SORT_ASC);
}
if(!isset($sort->attributes[$this->attribute])) {
$sort->attributes[$this->attribute] = [
'label'=>'#',
'asc'=>$this->attribute.' ASC',
'desc'=>$this->attribute.' DESC',
];
} else {
$sort->attributes[$this->attribute]['label'] = '#';
}
if ($orders = $this->dataProvider->getSort()->orders) {
if (array_keys($orders)[0] !== $this->attribute) {
return;
}
}
if(($params = \Yii::$app->request->post('Sortable')) && $params['id']===$this->id) {
while(ob_get_level()) ob_end_clean();
$insert = isset($params['insert']) ? $params['insert'] : null;
if(!isset($params['model'])) {
throw new HttpException(500);
}
$model = $modelClass::findOne($params['model']);
if(isset($params['page'])) {
$this->dataProvider->getPagination()->page = $params['page'] - 1;
$models = $this->dataProvider->getModels();
if(!$models) {
throw new HttpException(500);
}
reset($models);
$insertOn = current($models);
$insert = $insertOn->primaryKey;
if ($model->{$this->attribute} > $insertOn->{$this->attribute}) {
$action = 'insertBefore';
} else {
$action = 'insertAfter';
}
} else {
$action = 'insert'.ucfirst($params['action']);
if ($orders[$this->attribute]===SORT_DESC) {
if ($action === 'insertBefore') {
$action = 'insertAfter';
} else {
$action = 'insertBefore';
}
}
}
if ($action && $action != 'insertBefore' && $action != 'insertAfter')
throw new Exception('Unknown action ' . $action);
$model->$action($insert);
\Yii::$app->end();
}
$view = $this->getView();
SortableAsset::register($view);
$options = ['id'=>$this->id, 'url'=>\Yii::$app->request->url, 'items'=>$this->sortItemsSelector];
if ($this->sortOptions !== null) {
$options = array_merge($options, $this->sortOptions);
}
$selector = $this->containerSelector ? $this->containerSelector : '#'.$this->id;
$view->registerJs("jQuery('{$selector}').sortableItems(".Json::encode($options).");");
if (!$this->containerSelector) {
ob_start();
}
}
}
public function run() {
if (!$this->containerSelector) {
echo Html::tag('div', ob_get_clean(), ['id' => $this->id]);
}
}
}