I created a custom entity type that has a base field definition like this:

$fields['start_date'] = BaseFieldDefinition::create('datetime')
  ->setLabel(t('Start Date'))
  ->setDescription(t('The date and time to start.'))
  ->setDisplayOptions('view', array(
    'type' => 'datetime_default',
    'weight' => 3,
  ->setDisplayOptions('form', [
    'type' => 'datetime_default',
    'weight' => 3,

When I create a view that displays entities of this type, and try to create a filter on this base field, I get the generic filter provided by views, instead of the one defined in Drupal\datetime\Plugin\views\filter\Date.

Why is that?

  • I'm guessing drupal.org/node/2489476#comment-11891454 is you, then you figured it out by now ;) As a workaround, you can specify the filter yourself for now
    – Berdir
    Jan 27 '17 at 20:40
  • hah - yes. I'm working on a hook_views_data implementation now, then will post it as an answer here.
    – Brian
    Jan 27 '17 at 20:44

Looks like this is a known major issue. Here's the main "parent" issue where most of the work is going down: https://www.drupal.org/node/2337515

I think, by default, there is some basic views integration for all entities, but it's not that robust.

As a workaround, I was able to implement hook_views_data_alter to tell views to use the 'datetime' filter plugin instead of the default 'string' plugin it had.

function MY_MODULE_views_data_alter(array &$data) {
  $data['my_entity_type']['start_date']['filter']['id'] = 'datetime';
  • Can you specify what changes you made in the filter? It seems that the MY_MODULE_run_views_data_alter does not exist, is an error and I have to use MY_MODULE_views_data_alter ?
    – ferriol
    Feb 10 '17 at 13:19
  • Sorry, I that was a type in the hook name. Updated answer to fix that and removed the last bit about creating a custom filter. I think that was incorrect as well, it shouldn't have been required.
    – Brian
    Feb 10 '17 at 14:27
  • I tested and doesn't work for me, when I try to add a filter with this field, the popup window doesn't show me the options and reappear the add filter page. When I reload the edit view page, shows me this error "Notice: Undefined index: field_name in Drupal\datetime\Plugin\views\filter\Date->getFieldStorageDefinition() (line 56 of /var/www/.../core/modules/views/src/FieldAPIHandlerTrait.php)"
    – ferriol
    Feb 10 '17 at 16:24

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