/**
* Get a link that changes the sort order, and indicates the current sort state.
* @param $name internal name used for this type of sorting.
* @param $currentsort the current sort order -1, 0, 1 for descending, none, ascending.
* @param $title the link text.
* @param $defaultreverse whether the default sort order for this column is descending, rather than ascending.
* @return string HTML fragment.
*/
protected function make_sort_link($sort, $title, $tip, $defaultreverse = false)
{
$currentsort = $this->qbank->get_primary_sort_order($sort);
$newsortreverse = $defaultreverse;
if ($currentsort) {
$newsortreverse = $currentsort > 0;
}
if (!$tip) {
$tip = $title;
}
if ($newsortreverse) {
$tip = get_string('sortbyxreverse', '', $tip);
} else {
$tip = get_string('sortbyx', '', $tip);
}
$link = '<a href="' . $this->qbank->new_sort_url($sort, $newsortreverse) . '" title="' . $tip . '">';
$link .= $title;
if ($currentsort) {
$link .= $this->get_sort_icon($currentsort < 0);
}
$link .= '</a>';
return $link;
}
