private function getPageData($total_rows, $entity, $page, $opt_conditions = NULL)
{
//If $page is not a number, getMultiplier will return 0.
$start = Controller_Admin::getMultiplier($page) * Controller_Admin::ROWS_PER_PAGE;
$rows = ORM::factory($entity)->limit(Controller_Admin::ROWS_PER_PAGE)->offset($start);
if ($opt_conditions) {
foreach ($opt_conditions as $field => $value) {
$rows->where($field, '=', $value);
}
}
$rows = $rows->find_all();
//Error conditions.
if (count($rows) == 0 && $total_rows > 0) {
$this->addError(__('Invalid page number'));
} else {
if (!count($rows)) {
$this->addError(__("You should probably create an {$entity} to start with."));
}
}
return $rows;
}