/**
* cascade to children
*
* @param string referencing of the changed anchor
* @param string rights to be cascaded (e.g., 'Y', 'R' or 'N')
*/
public static function cascade($reference, $active)
{
global $context;
// only sections may have sub-sections
if (strpos($reference, 'section:') === 0) {
// cascade to sub-sections
if ($items = Sections::list_for_anchor($reference, 'raw')) {
// cascade to each section individually
foreach ($items as $id => $item) {
// limit actual rights
$item['active'] = Anchors::ceil_rights($active, $item['active_set']);
$query = "UPDATE " . SQL::table_name('sections') . " SET active='" . SQL::escape($item['active']) . "' WHERE id = " . SQL::escape($id);
SQL::query($query);
// cascade to children
Anchors::cascade('section:' . $item['id'], $item['active']);
}
}
}
// only categories may have sub-categories
if (strpos($reference, 'category:') === 0) {
// cascade to sub-categories
if ($items = Categories::list_for_anchor($reference, 'raw')) {
// cascade to each section individually
foreach ($items as $id => $item) {
// limit actual rights
$item['active'] = Anchors::ceil_rights($active, $item['active_set']);
$query = "UPDATE " . SQL::table_name('categories') . " SET active='" . SQL::escape($item['active']) . "' WHERE id = " . SQL::escape($id);
SQL::query($query);
// cascade to children
Anchors::cascade('category:' . $item['id'], $item['active']);
}
}
}
// only sections may have articles
if (strpos($reference, 'section:') === 0) {
// cascade to articles --up to 3000
if ($items =& Articles::list_for_anchor_by('edition', $reference, 0, 3000, 'raw')) {
// cascade to each section individually
foreach ($items as $id => $item) {
// limit actual rights
$item['active'] = Anchors::ceil_rights($active, $item['active_set']);
$query = "UPDATE " . SQL::table_name('articles') . " SET active='" . SQL::escape($item['active']) . "' WHERE id = " . SQL::escape($id);
SQL::query($query);
// cascade to children
Anchors::cascade('article:' . $item['id'], $item['active']);
}
}
}
// cascade to files --up to 3000
if ($items = Files::list_by_date_for_anchor($reference, 0, 3000, 'raw')) {
// cascade to each section individually
foreach ($items as $id => $item) {
// limit actual rights
$item['active'] = Anchors::ceil_rights($active, $item['active_set']);
$query = "UPDATE " . SQL::table_name('files') . " SET active='" . SQL::escape($item['active']) . "' WHERE id = " . SQL::escape($id);
SQL::query($query);
}
}
}
