SearchQuery::countQuery

public SearchQuery::countQuery()

public function countQuery() {
  if (!$this->executedPrepare) {
    $this->prepareAndNormalize();
  }

  // Clone the inner query.
  $inner = clone $this->query;

  // Add conditions to query.
  $inner->join('search_dataset', 'd', 'i.sid = d.sid AND i.type = d.type');
  if (count($this->conditions)) {
    $inner->condition($this->conditions);
  }

  // Remove existing fields and expressions, they are not needed for a count
  // query.
  $fields = &$inner->getFields();
  $fields = array();
  $expressions = &$inner->getExpressions();
  $expressions = array();

  // Add sid as the only field and count them as a subquery.
  $count = db_select($inner->fields('i', array('sid')), NULL, array('target' => 'replica'));

  // Add the COUNT() expression.
  $count->addExpression('COUNT(*)');

  return $count;
}