feat: support custom field for customer groups

Closes #360

Author: Jens Schulze

src/Core/Model/CustomerGroup/CustomerGroup.php

@@ -7,6 +7,7 @@
 
 use Commercetools\Core\Model\Common\Resource;
 use Commercetools\Core\Model\Common\DateTimeDecorator;
+use Commercetools\Core\Model\CustomField\CustomFieldObject;
 use DateTime;
 
 /**
@@ -24,6 +25,8 @@
  * @method CustomerGroup setName(string $name = null)
  * @method string getKey()
  * @method CustomerGroup setKey(string $key = null)
+ * @method CustomFieldObject getCustom()
+ * @method CustomerGroup setCustom(CustomFieldObject $custom = null)
  * @method CustomerGroupReference getReference()
  */
 class CustomerGroup extends Resource
@@ -43,6 +46,7 @@ public function fieldDefinitions()
             ],
             'name' => [static::TYPE => 'string'],
             'key' => [static::TYPE => 'string'],
+            'custom' => [static::TYPE => CustomFieldObject::class],
         ];
     }
 }

src/Core/Model/CustomerGroup/CustomerGroupDraft.php

@@ -7,19 +7,26 @@
 
 use Commercetools\Core\Model\Common\Context;
 use Commercetools\Core\Model\Common\JsonObject;
+use Commercetools\Core\Model\CustomField\CustomFieldObjectDraft;
 
 /**
  * @package Commercetools\Core\Model\CustomerGroup
  * @link https://dev.commercetools.com/http-api-projects-customerGroups.html#create-a-customergroup
  * @method string getGroupName()
  * @method CustomerGroupDraft setGroupName(string $groupName = null)
+ * @method string getKey()
+ * @method CustomerGroupDraft setKey(string $key = null)
+ * @method CustomFieldObjectDraft getCustom()
+ * @method CustomerGroupDraft setCustom(CustomFieldObjectDraft $custom = null)
  */
 class CustomerGroupDraft extends JsonObject
 {
     public function fieldDefinitions()
     {
         return [
+            'key' => [static::TYPE => 'string'],
             'groupName' => [static::TYPE => 'string'],
+            'custom' => [static::TYPE => CustomFieldObjectDraft::class],
         ];
     }
 

tests/fixtures/models.yaml

@@ -713,6 +713,7 @@ customerGroup:
     - lastModifiedAt
     - name
     - key
+    - custom
 
 discountCode:
   domain: discountCode