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TruncateQuery

user warning: Got error 28 from storage engine query: SELECT ad.branch_id, ad.title, ad.object_name, ad.summary, ad.object_type, ad.file_name, ao.overrides_did, ad.did FROM api_members am INNER JOIN api_documentation ad ON ad.did = am.did LEFT JOIN api_overrides ao ON ao.did = am.did WHERE am.class_did = 18860 ORDER BY title in /srv/www/api.ubercart.me/drupal/sites/all/modules/api/api.pages.inc on line 741.
  1. drupal
    1. 7 drupal/includes/database/query.inc

General class for an abstracted TRUNCATE operation.

Hierarchy

File

drupal/includes/database/query.inc, line 839
Non-specific Database query code. Used by all engines.

View source
class TruncateQuery extends Query {

  /**
   * The table to truncate.
   *
   * @var string
   */
  protected $table;

  /**
   * Constructs a TruncateQuery object.
   *
   * @param DatabaseConnection $connection
   *   A DatabaseConnection object.
   * @param string $table
   *   Name of the table to associate with this query.
   * @param array $options
   *   Array of database options.
   */
  public function __construct(DatabaseConnection $connection, $table, array $options = array()) {
    $options['return'] = Database::RETURN_AFFECTED;
    parent::__construct($connection, $options);
    $this->table = $table;
  }

  /**
   * Implements QueryConditionInterface::compile().
   */
  public function compile(DatabaseConnection $connection, QueryPlaceholderInterface $queryPlaceholder = NULL) {
    return $this->condition->compile($connection, isset($queryPlaceholder) ? $queryPlaceholder : $this);
  }

  /**
   * Executes the TRUNCATE query.
   *
   * @return
   *   Return value is dependent on the database type.
   */
  public function execute() {
    return $this->connection->query((string) $this, array(), $this->queryOptions);
  }

  /**
   * Implements PHP magic __toString method to convert the query to a string.
   *
   * @return string
   *   The prepared statement.
   */
  public function __toString() {
    // Create a sanitized comment string to prepend to the query.
    $comments = $this->connection->makeComment($this->comments);

    return $comments . 'TRUNCATE {' . $this->connection->escapeTable($this->table) . '} ';
  }
}

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