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I am writing a patch for a module that used an old beta or even alpha of webform for drupal 8.

There is a line WebformEntityReferenceItem::getEntityWebformFieldName($node); in the module that errors out saying getEntityWebformFieldName() does not exist and sure enough in Drupal\webform\Plugin\Field\FieldType\WebformEntityReferenceItem the method does not exist.

I checked an older release and the method was there at some point. I've been searching since yesterday but cannot find a workaround or even an answer as to why it was removed. Any ideas?

EDIT

So I managed to get it working, but this certainly seems like the incorrect way to do it.

$node->get('webform')->getValue()[0]['target_id'];

So it seems WebformEntityReferenceItem::getEntityWebformFieldName($node); just gets the webform on the webform node and then grabs its 'target_id' value. 

$webform_field_name = WebformEntityReferenceItem::getEntityWebformFieldName($node);
$webform_id = $node->$webform_field_name->target_id;

What I posted in my edit, I do not believe is the correct solution, albeit it is now working. Any suggestions would be appreciated.

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  • Run update.php, clear cache, should fix it – Clive♦ Jan 9 '18 at 17:59
  • Sorry, I meant I am writing a patch to update the module. Not apply an update. I'll edit my post. @Clive – Ronnie Jan 9 '18 at 18:02
  • What is your final goal? Are you after the webform itself, or its submissions? You might want to take a look at drupal.stackexchange.com/questions/244574/… – Neograph734 Jan 9 '18 at 18:45
  • @Neograph734 I needed the webform id when using webform node. WebformEntityReferenceItem::getEntityWebformFieldName(); doesn't appear to exist anymore as of webform 8-rc1. I want to know what to replace that with. I cannot find any mention of it being removed. The line in my edit seems to have fixed the module I am patching, but it seems hacky. – Ronnie Jan 9 '18 at 19:06
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The WebformEntityReferenceItem::getEntityWebformFieldName() static method was not removed but it was refactored and moved to the 'webform.entity_reference_manager'service.

Here is an example of showing how to use the service.

/** @var \Drupal\webform\WebformEntityReferenceManagerInterface $entity_reference_manager */
$entity_reference_manager = \Drupal::service('webform.entity_reference_manager');
$field_name = $entity_reference_manager->getFieldName($node);
...

@see \Drupal\webform\WebformEntityReferenceManager

@see \Drupal\webform\WebformEntityReferenceManagerInterface

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    perfect, this is exactly what I was looking for. Thanks for all the work you've done for this module – Ronnie Jan 9 '18 at 22:52
  • I am trying to get this working and I am doing: WebformEntityReferenceManager::getFieldName($node);, but getting an error saying Error: Using $this when not in object contextwhere $node is of type Drupal\node\Entity\Node I must be calling this incorrectly but cant figure it out. If I call the method through the interface it says non static methods can be called statically. Any ideas? – Ronnie Jan 10 '18 at 23:41
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    I added a code example to my answer. – jrockowitz Jan 22 '18 at 23:40

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