/**
  * Check whether all themes have correct parent theme by type
  *
  * @return $this
  */
 public function checkAllowedThemeRelations()
 {
     foreach ($this->_forbiddenRelations as $typesSequence) {
         list($parentType, $childType) = $typesSequence;
         $collection = $this->_collectionFactory->create();
         $collection->addTypeRelationFilter($parentType, $childType);
         /** @var $theme ThemeInterface */
         foreach ($collection as $theme) {
             $parentId = $this->_getResetParentId($theme);
             if ($theme->getParentId() != $parentId) {
                 $theme->setParentId($parentId)->save();
             }
         }
     }
     return $this;
 }