public function SearchQuery::countQuery in Drupal 7

Builds the default count query for SearchQuery.

Since SearchQuery always uses GROUP BY, we can default to a subquery. We also add the same conditions as execute() because countQuery() is called first.

Overrides SelectQueryExtender::countQuery

File

modules/search/search.extender.inc, line 523

Search query extender and helper functions.

Class

SearchQuery

Do a query on the full-text search index for a word or words.

Code

public function countQuery() {

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

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