/**
  * @param int $idCategory
  *
  * @return void
  */
 protected function removeMappings($idCategory)
 {
     $assignedProducts = $this->productCategoryQueryContainer->queryProductCategoryMappingsByCategoryId($idCategory)->find();
     $productIdsToUnAssign = [];
     foreach ($assignedProducts as $mapping) {
         $productIdsToUnAssign[] = $mapping->getFkProductAbstract();
     }
     $this->removeProductCategoryMappings($idCategory, $productIdsToUnAssign);
 }