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<?php
/**
* Remove a page
*
* Subpages are not deleted but are moved up a level in the tree
*
* @package ElggPages
*/
$guid = get_input('guid');
$page = get_entity($guid);
if (elgg_instanceof($page, 'object', 'page') || elgg_instanceof($page, 'object', 'page_top')) {
// only allow owners and admin to delete
if (elgg_is_admin_logged_in() || elgg_get_logged_in_user_guid() == $page->getOwnerGuid()) {
$container = get_entity($page->container_guid);
// Bring all child elements forward
$parent = $page->parent_guid;
$children = elgg_get_entities_from_metadata(array(
'metadata_name' => 'parent_guid',
'metadata_value' => $page->getGUID()
));
if ($children) {
$db_prefix = elgg_get_config('dbprefix');
$subtype_id = (int)get_subtype_id('object', 'page_top');
$newentity_cache = is_memcache_available() ? new ElggMemcache('new_entity_cache') : null;
foreach ($children as $child) {
if ($parent) {
$child->parent_guid = $parent;
} else {
// If no parent, we need to transform $child to a page_top
$child_guid = (int)$child->guid;
update_data("UPDATE {$db_prefix}entities
SET subtype = $subtype_id WHERE guid = $child_guid");
elgg_delete_metadata(array(
'guid' => $child_guid,
'metadata_name' => 'parent_guid',
));
_elgg_invalidate_cache_for_entity($child_guid);
if ($newentity_cache) {
$newentity_cache->delete($child_guid);
}
}
}
}
if ($page->delete()) {
system_message(elgg_echo('pages:delete:success'));
if ($parent) {
if ($parent = get_entity($parent)) {
forward($parent->getURL());
}
}
if (elgg_instanceof($container, 'group')) {
forward("pages/group/$container->guid/all");
} else {
forward("pages/owner/$container->username");
}
}
}
}
register_error(elgg_echo('pages:delete:failure'));
forward(REFERER);
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