Add missing placeholder in the Private Note textarea

src/PrestaShopBundle/Form/Admin/Sell/Customer/PrivateNoteType.php

@@ -29,12 +29,28 @@
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\TextareaType;
 use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Translation\TranslatorInterface;
 
 /**
  * Class PrivateNoteType is used to add private notes about customer.
  */
 class PrivateNoteType extends AbstractType
 {
+    /**
+     * @var TranslatorInterface
+     */
+    private $translator;
+
+    /**
+     * PrivateNoteType constructor.
+     *
+     * @param TranslatorInterface $translator
+     */
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -44,6 +60,9 @@ public function buildForm(FormBuilderInterface $builder, array $options)
             ->add('note', TextareaType::class, [
                 'required' => false,
                 'empty_data' => '',
+                'attr' => [
+                    'placeholder' => $this->translator->trans('Add a note on this customer. It will only be visible to you.', [], 'Admin.Orderscustomers.Feature'),
+                ],
             ]);
     }
 }

src/PrestaShopBundle/Resources/config/services/bundle/form/form_type.yml

@@ -907,6 +907,13 @@ services:
         tags:
             - { name: form.type }
 
+    form.type.sell.customer.private_note:
+      class: 'PrestaShopBundle\Form\Admin\Sell\Customer\PrivateNoteType'
+      arguments:
+          - "@translator"
+      tags:
+          - { name: form.type }
+
     form.type.order.add_order_cart_rule:
       class: 'PrestaShopBundle\Form\Admin\Sell\Order\AddOrderCartRuleType'
       arguments: