/**
* undocumented function
*
* @param unknown $offset
* @param unknown $whence
* @return void
* @access public
*/
function offset($offset = null)
{
if (is_null($offset)) {
if (!is_object($this->resource)) {
return $this->offset;
}
return $this->offset;
}
if (!ctype_digit($offset)) {
return false;
}
if (is_object($this->resource)) {
$this->resource->offset($offset);
} else {
$this->offset = $offset;
}
}
/**
*
* @param unknown $query
* @param array $config ['db','page','pageSize','orderBy','rows','pager']
* @return multitype:\yii\data\Pagination unknown
*/
public static function getPagedRows($query, $config = [])
{
$db = isset($config['db']) ? $config['db'] : null;
$countQuery = clone $query;
$pager = new Pagination(['totalCount' => $countQuery->count('*', $db)]);
if (isset($config['page'])) {
$pager->setPage($config['page'], true);
}
if (isset($config['pageSize'])) {
$pager->setPageSize($config['pageSize'], true);
}
$rows = $query->offset($pager->offset)->limit($pager->limit);
if (isset($config['orderBy'])) {
$rows = $rows->orderBy($config['orderBy']);
}
$rows = $rows->all($db);
$rowsLable = isset($config['rows']) ? $config['rows'] : 'rows';
$pagerLable = isset($config['pager']) ? $config['pager'] : 'pager';
$ret = [];
$ret[$rowsLable] = $rows;
$ret[$pagerLable] = $pager;
return $ret;
}