/**
* Clear statement PDO and query builder
*/
public function clear()
{
$this->statement = null;
$this->clearUsingModel();
$this->query->clear();
$this->grammar->clear();
}
/**
* @return string
*/
private function selectColumn()
{
$columns = $this->query->columns;
if (is_null($columns)) {
$columns = [Query::sql("*")];
}
if (is_string($columns)) {
$columns = array($columns);
}
foreach ($columns as $key => $val) {
if ($columns[$key] instanceof Query) {
$columns[$key] = $columns[$key]->query;
} else {
$columns[$key] = $this->getFormattedTableOrColumn($val);
}
}
return implode(', ', $columns);
}
/**
* @param $query
* @param string $type
* @return Query
*/
public function whereQ(Query $query, $type = "AND")
{
if ($query->getType() == Query::TYPE_QUERY) {
$this->attributes['where'][] = array($type, $query->query);
}
return $this;
}
