/**
  * @inheritdoc
  */
 public function init()
 {
     parent::init();
     if (!isset($this->successCreate)) {
         $this->successCreate = Module::t('page', 'Page has been successfully created.');
     }
     if (!isset($this->errorCreate)) {
         $this->errorCreate = Module::t('page', 'Page has not been created. Please try again!');
     }
     if (!isset($this->successUpdate)) {
         $this->successUpdate = Module::t('page', 'Page has been successfully saved.');
     }
     if (!isset($this->successBatchUpdate)) {
         $this->successBatchUpdate = Module::t('page', '{count} pages have been successfully saved.');
     }
     if (!isset($this->errorUpdate)) {
         $this->errorUpdate = Module::t('page', 'Page has not been saved. Please try again!');
     }
     if (!isset($this->successDelete)) {
         $this->successDelete = Module::t('page', 'Page has been successfully deleted.');
     }
     if (!isset($this->successBatchDelete)) {
         $this->successBatchDelete = Module::t('page', 'Pages have been successfully deleted.');
     }
 }
 /**
  * @inheritdoc
  */
 public function init()
 {
     parent::init();
     if ($this->treeSerializer && !$this->treeSerializer instanceof ModelSerializer) {
         $this->treeSerializer = Yii::createObject($this->treeSerializer);
     }
 }