public function SelectQuery_sqlite::forUpdate in Drupal 7

Add FOR UPDATE to the query.

FOR UPDATE prevents the rows retrieved by the SELECT statement from being modified or deleted by other transactions until the current transaction ends. Other transactions that attempt UPDATE, DELETE, or SELECT FOR UPDATE of these rows will be blocked until the current transaction ends.

Parameters

$set: IF TRUE, FOR UPDATE will be added to the query, if FALSE then it won't.

Return value

QueryConditionInterface The called object.

Overrides SelectQuery::forUpdate

File

includes/database/sqlite/select.inc, line 17

Select builder for SQLite embedded database engine.

Class

SelectQuery_sqlite

SQLite specific query builder for SELECT statements.

Code

public function forUpdate($set = TRUE) {

  // SQLite does not support FOR UPDATE so nothing to do.
  return $this;
}