public function StatisticsLastCommentName::query in Drupal 8

Same name in this branch

1. 8 core/modules/comment/src/Plugin/views/sort/StatisticsLastCommentName.php \Drupal\comment\Plugin\views\sort\StatisticsLastCommentName::query()
2. 8 core/modules/comment/src/Plugin/views/field/StatisticsLastCommentName.php \Drupal\comment\Plugin\views\field\StatisticsLastCommentName::query()

Same name and namespace in other branches

1. 9 core/modules/comment/src/Plugin/views/field/StatisticsLastCommentName.php \Drupal\comment\Plugin\views\field\StatisticsLastCommentName::query()

Called to add the field to a query.

Overrides FieldPluginBase::query

File

core/modules/comment/src/Plugin/views/field/StatisticsLastCommentName.php, line 21

Class

StatisticsLastCommentName

Field handler to present the name of the last comment poster.

Namespace

Drupal\comment\Plugin\views\field

Code

public function query() {

  // last_comment_name only contains data if the user is anonymous. So we
  // have to join in a specially related user table.
  $this
    ->ensureMyTable();

  // join 'users' to this table via vid
  $definition = [
    'table' => 'users_field_data',
    'field' => 'uid',
    'left_table' => 'comment_entity_statistics',
    'left_field' => 'last_comment_uid',
    'extra' => [
      [
        'field' => 'uid',
        'operator' => '!=',
        'value' => '0',
      ],
    ],
  ];
  $join = \Drupal::service('plugin.manager.views.join')
    ->createInstance('standard', $definition);

  // nes_user alias so this can work with the sort handler, below.
  $this->user_table = $this->query
    ->ensureTable('ces_users', $this->relationship, $join);
  $this->field_alias = $this->query
    ->addField(NULL, "COALESCE({$this->user_table}.name, {$this->tableAlias}.{$this->field})", $this->tableAlias . '_' . $this->field);
  $this->user_field = $this->query
    ->addField($this->user_table, 'name');
  $this->uid = $this->query
    ->addField($this->tableAlias, 'last_comment_uid');
}