/**
* Compile an Query.
*
* @param Query $query The query to compile.
* @return [string $sql, array $values]
*/
public function compile(Query $query)
{
$type = $query->getType();
$sql = $this->compileComponents($query->getComponents(), $type);
$val = $this->compileValues($query->getComponentValues(), $type);
return array($sql, $val);
}
/**
* Add an exists condition to the query.
*
* @param Query $q The Select sub-query.
* @return $this
*/
public function whereExists(Query $query, $logic = 'AND', $not = false)
{
$type = 'Exists';
$cond = compact('type', 'query', 'logic', 'not');
$this->_addWhere($cond);
$this->addValueToQuery($query->getComponentValues());
return $this;
}
