In a custom module, I have a custom entity for which a view shows the following values:


Contact is the ID of another entity (Person) containing some fields, such as Email. Adresse courriel is a Custom text field defined in the view.

What hook should I use to achieve the following task?

  1. Query the Person entity with the Contact value to retrieve the Email field value
  2. Update Adresse courriel in the view output
  • 3
    Please refer UserViewsData or other subclass of EntityViewsData class for a reference how to achieve such.
    – Codium
    Dec 16 '19 at 12:32
  • Why don't you use relationship in views? Dec 16 '19 at 13:50
  • @usmanjutt84 I tried. But I couldn't find how to link my content to Person entity. The entity on which my view is based (ContractSubscription) is linked to Member entity. So I could add Member entity to the View with 'Relation' feature and then I can dispaly Désignation and Contact fields. But from here, I could'n( find a way to add Person entity: it doesn't appear in the entities list of 'Relation'.
    – gbmapo
    Dec 16 '19 at 13:58

1- Firstly you need to add a relationship to the Person entity to have the fields available.

2- then use hook_views_query_alter() to change the fields values.


I added this to MemberViewsData.php:

class MemberViewsData extends EntityViewsData
   * {@inheritdoc}
  public function getViewsData()
    $data = parent::getViewsData();

    // Additional information for Views integration, such as table joins, can be
    // put here.
    $data['member']['contact_id'] = array(
      'title' => t('Contact Id'),
      'relationship' => array(
        'base' => 'person',
        'base field' => 'id',
        'handler' => 'views_handler_relationship',
        'label' => t('Member to Person (Contact)'),
        'title' => t('Person (Contact)'),
        'id' => 'standard',
    return $data;

Then I could use Views UI, adding a 'Relation' from Member (main entity of my view) to Person. And here it is: enter image description here

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