public function EntityUsageTrackBase::trackOnEntityUpdate in Entity Usage 8.2

Same name and namespace in other branches

1. 8 src/EntityUsageTrackBase.php \Drupal\entity_usage\EntityUsageTrackBase::trackOnEntityUpdate()
2. 8.3 src/EntityUsageTrackBase.php \Drupal\entity_usage\EntityUsageTrackBase::trackOnEntityUpdate()

Track usage updates on the edition of entities.

Parameters

\Drupal\Core\Entity\EntityInterface $source_entity: The source entity.

Overrides EntityUsageTrackInterface::trackOnEntityUpdate

File

src/EntityUsageTrackBase.php, line 162

Class

EntityUsageTrackBase

Base implementation for track plugins.

Namespace

Drupal\entity_usage

Code

public function trackOnEntityUpdate(EntityInterface $source_entity) {
  $trackable_field_types = $this
    ->getApplicableFieldTypes();
  $fields = array_keys($this
    ->getReferencingFields($source_entity, $trackable_field_types));
  foreach ($fields as $field_name) {
    if ($source_entity instanceof RevisionableInterface && $source_entity
      ->getRevisionId() != $source_entity->original
      ->getRevisionId() && $source_entity
      ->hasField($field_name) && !$source_entity->{$field_name}
      ->isEmpty()) {
      $this
        ->trackOnEntityCreation($source_entity);
      return;
    }

    // We are updating an existing revision, compare target entities to see if
    // we need to add or remove tracking records.
    $current_targets = [];
    if ($source_entity
      ->hasField($field_name) && !$source_entity->{$field_name}
      ->isEmpty()) {
      foreach ($source_entity->{$field_name} as $field_item) {
        $target_entities = $this
          ->getTargetEntities($field_item);
        foreach ($target_entities as $target_entity) {
          $current_targets[] = $target_entity;
        }
      }
    }
    $original_targets = [];
    if ($source_entity->original
      ->hasField($field_name) && !$source_entity->original->{$field_name}
      ->isEmpty()) {
      foreach ($source_entity->original->{$field_name} as $field_item) {
        $target_entities = $this
          ->getTargetEntities($field_item);
        foreach ($target_entities as $target_entity) {
          $original_targets[] = $target_entity;
        }
      }
    }

    // If a field references the same target entity, we record only one usage.
    $original_targets = array_unique($original_targets);
    $current_targets = array_unique($current_targets);
    $added_ids = array_diff($current_targets, $original_targets);
    $removed_ids = array_diff($original_targets, $current_targets);
    foreach ($added_ids as $added_entity) {
      list($target_type, $target_id) = explode('|', $added_entity);
      $source_vid = $source_entity instanceof RevisionableInterface && $source_entity
        ->getRevisionId() ? $source_entity
        ->getRevisionId() : 0;
      $this->usageService
        ->registerUsage($target_id, $target_type, $source_entity
        ->id(), $source_entity
        ->getEntityTypeId(), $source_entity
        ->language()
        ->getId(), $source_vid, $this->pluginId, $field_name);
    }
    foreach ($removed_ids as $removed_entity) {
      list($target_type, $target_id) = explode('|', $removed_entity);
      $source_vid = $source_entity instanceof RevisionableInterface && $source_entity
        ->getRevisionId() ? $source_entity
        ->getRevisionId() : 0;
      $this->usageService
        ->registerUsage($target_id, $target_type, $source_entity
        ->id(), $source_entity
        ->getEntityTypeId(), $source_entity
        ->language()
        ->getId(), $source_vid, $this->pluginId, $field_name, 0);
    }
  }
}