Magento 2 How to prevent product save with custom condition using plugin 'aroundSave'?

Question

I want to prevent to save the product with my custom condition, for that, I want to use the plugin with method 'aroundSave',

• When the user clicks on 'Save & Duplicate' button I do not want to save the original product simply duplicate the product. Is the plugin method is correct or I need to override the controller or use catalog_product_save_befor event?

Anyone have any example please share.

for example,

namespace Vendor\Module\Plugin;

class Save
{    
   public function aroundExecute(\Magento\Catalog\Controller\Adminhtml\Product\Save $subject, $result)
    {
      if (some condition == true)
          then save product
      else
            not save the product
    }
}

How can I achieve this functionality?

Answer 1

That would be because the admin product form doesn't actually use ProductRepository, at least as of 2.2.2.

vendor/magento/module-catalog/Controller/Adminhtml/Product/Save.php:

$product->save();

You haven't explained what you're actually trying to accomplish, but you would probably be better served by an observer on event catalog_product_save_before or catalog_product_save_after. Those are kicked off by the product resource model, so they should fire regardless of whether the product is saved via ProductRepository or directly.