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MDL-61557 Lib: Add get_top_level_parent_id function

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This commit is contained in:
Shamim Rezaie 2018-03-05 13:34:08 +11:00
parent 856e07e4e7
commit 536d4d5729
1 changed files with 16 additions and 3 deletions
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19
lib/listlib.php
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@ -297,6 +297,17 @@ abstract class moodle_list {
return $childids;
}
/**
* Returns the value to be used as the parent for the $item when it goes to the top level.
* Override if needed.
*
* @param list_item $item The item which its top level parent is going to be returned.
* @return int
*/
public function get_top_level_parent_id($item) {
return 0; // Top level items have no parent.
}
/**
* Move a record up or down
*
@ -338,8 +349,10 @@ abstract class moodle_list {
}
/**
* @param integer $id an item index.
* @return object the item that used to be the parent of the item moved.
* Moves the item one step up in the tree.
*
* @param int $id an item index.
* @return list_item the item that used to be the parent of the item moved.
*/
public function move_item_left($id) {
global $DB;
@ -352,7 +365,7 @@ abstract class moodle_list {
if (isset($item->parentlist->parentitem->parentlist->parentitem)) {
$newparent = $item->parentlist->parentitem->parentlist->parentitem->id;
} else {
$newparent = 0; // top level item
$newparent = $this->get_top_level_parent_id($item);
}
$DB->set_field($this->table, "parent", $newparent, array("id"=>$item->id));
$oldparentkey = array_search($item->parentlist->parentitem->id, $newpeers);