function StatisticsLastCommentName::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

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');
}