[Api] Made sure api checkout has a customer

src/Sylius/Bundle/ApiBundle/Resources/config/routing/checkout.yml

@@ -28,7 +28,7 @@ sylius_api_checkout_addressing:
         _controller: sylius.controller.order:updateAction
         _sylius:
             form:
-                type: sylius_checkout_address
+                type: sylius_api_checkout_address
                 options:
                     customer: expr:service('sylius.repository.customer').find($customerId)
             repository:

src/Sylius/Bundle/CoreBundle/Form/EventSubscriber/Api/SetCustomerFormSubscriber.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sylius\Bundle\CoreBundle\Form\EventSubscriber\Api;
+
+use Sylius\Component\Customer\Model\CustomerAwareInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
+use Webmozart\Assert\Assert;
+
+/**
+ * @author Jan Góralski <jan.goralski@lakion.com>
+ */
+class SetCustomerFormSubscriber implements EventSubscriberInterface
+{
+    /**
+     * @var string
+     */
+    private $field;
+
+    /**
+     * @param string $field
+     */
+    public function __construct($field)
+    {
+        $this->field = $field;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getSubscribedEvents()
+    {
+        return [
+            FormEvents::PRE_SET_DATA => 'preSetData',
+        ];
+    }
+
+    /**
+     * @param FormEvent $event
+     */
+    public function preSetData(FormEvent $event)
+    {
+        $resource = $event->getData();
+        $customer = $event->getForm()->getConfig()->getOption($this->field);
+
+        Assert::isInstanceOf($resource, CustomerAwareInterface::class);
+
+        $resource->setCustomer($customer);
+
+        $event->setData($resource);
+    }
+}

src/Sylius/Bundle/CoreBundle/Form/EventSubscriber/SetCustomerFormSubscriber.php

@@ -44,6 +44,9 @@ class SetCustomerFormSubscriber implements EventSubscriberInterface
         ];
     }
 
+    /**
+     * @param FormEvent $event
+     */
     public function preSubmit(FormEvent $event) 
     {
         $data = $event->getData();

src/Sylius/Bundle/CoreBundle/Form/Type/Api/Checkout/AddressType.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sylius\Bundle\CoreBundle\Form\Type\Api\Checkout;
+
+use Sylius\Bundle\CoreBundle\Form\EventSubscriber\AddDefaultBillingAddressOnOrderFormSubscriber;
+use Sylius\Bundle\CoreBundle\Form\EventSubscriber\Api\SetCustomerFormSubscriber;
+use Sylius\Bundle\ResourceBundle\Form\Type\AbstractResourceType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ * @author Jan Góralski <jan.goralski@lakion.com>
+ */
+class AddressType extends AbstractResourceType
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder
+            ->add('shippingAddress', 'sylius_address', ['shippable' => true])
+            ->add('billingAddress', 'sylius_address')
+            ->add('differentBillingAddress', 'checkbox', [
+                'mapped' => false,
+                'required' => false,
+                'label' => 'sylius.form.checkout.addressing.different_billing_address',
+            ])
+            ->addEventSubscriber(new AddDefaultBillingAddressOnOrderFormSubscriber())
+            ->addEventSubscriber(new SetCustomerFormSubscriber('customer'))
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        parent::configureOptions($resolver);
+
+        $resolver
+            ->setDefaults([
+                'customer' => null,
+                'cascade_validation' => true,
+            ])
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'sylius_api_checkout_address';
+    }
+}

src/Sylius/Bundle/CoreBundle/Form/Type/Checkout/AddressType.php

@@ -12,7 +12,6 @@
 namespace Sylius\Bundle\CoreBundle\Form\Type\Checkout;
 
 use Sylius\Bundle\CoreBundle\Form\EventSubscriber\AddDefaultBillingAddressOnOrderFormSubscriber;
-use Sylius\Bundle\CoreBundle\Form\EventSubscriber\AddEmailGuestFormSubscriber;
 use Sylius\Bundle\ResourceBundle\Form\Type\AbstractResourceType;
 use Sylius\Bundle\CoreBundle\Form\EventSubscriber\AddCustomerGuestTypeFormSubscriber;
 use Symfony\Component\Form\FormBuilderInterface;

src/Sylius/Bundle/CoreBundle/Resources/config/services/api_form.xml

@@ -27,5 +27,9 @@
             <argument>%sylius.model.product.class%</argument>
             <tag name="form.type" alias="sylius_api_product" />
         </service>
+        <service id="sylius.form.type.api.checkout_address" class="Sylius\Bundle\CoreBundle\Form\Type\Api\Checkout\AddressType">
+            <argument>%sylius.model.cart.class%</argument>
+            <tag name="form.type" alias="sylius_api_checkout_address" />
+        </service>
     </services>
 </container>

tests/Responses/Expected/checkout/addressing_invalid_customer.json

@@ -75,16 +75,7 @@
           }
         }
       },
-      "differentBillingAddress": {},
-      "customer": {
-        "children": {
-          "email": {
-            "errors": [
-              "Please enter your email."
-            ]
-          }
-        }
-      }
+      "differentBillingAddress": {}
     }
   }
 }