public function actionPrint()
{
$id = Yii::$app->request->get('id');
$model = Group::find()->where(['`' . Group::tableName() . '`.id' => $id])->joinWith(['label', 'type', 'estimate'])->one();
if ($id == '' || $model === null) {
echo '找不到该数据！';
Yii::$app->end();
}
return $this->render('print', ['model' => $model]);
}
