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friendica
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Item: parent/children relationship. get_parent now returns an Item (or null)

This commit is contained in:
Domovoy 2012-08-11 17:39:11 +02:00
parent adbe126d10
commit e6c55de070
1 changed files with 79 additions and 4 deletions
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83
object/Item.php
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@ -21,12 +21,20 @@ class Item extends BaseObject {
private $profile_owner = 0;
private $toplevel = false;
private $writeable = false;
private $children = array();
private $parent = null;
public function __construct($data) {
$this->data = $data;
$this->set_template('wall');
$this->toplevel = ($this->get_id() == $this->get_parent());
$this->toplevel = ($this->get_id() == $this->get_data_value('parent'));
$this->writeable = ($this->get_data_value('writeable') || $this->get_data_value('self'));
// Prepare the children
foreach($data['children'] as $item) {
$child = new Item($item);
$this->add_child($child);
}
}
/**
@ -338,9 +346,76 @@ class Item extends BaseObject {
public function get_thumb() {
return $this->get_data_value('thumb');
}
public function get_parent() {
return $this->get_data_value('parent');
/**
* Add a child item
*/
public function add_child($item) {
$item_id = $item->get_id();
if(!$item_id) {
logger('[ERROR] Item::add_child : Item has no ID!!', LOGGER_DEBUG);
return false;
}
if($this->get_child($item->get_id())) {
logger('[WARN] Item::add_child : Item already exists ('. $item->get_id() .').', LOGGER_DEBUG);
return false;
}
$item->set_parent($this);
$this->children[] = $item;
return end($this->children);
}
/**
* Get a child by its ID
*/
public function get_child($id) {
foreach($this->get_children() as $child) {
if($child->get_id() == $id)
return $child;
}
return null;
}
/**
* Get all ou children
*/
public function get_children() {
return $this->children;
}
/**
* Set our parent
*/
protected function set_parent($item) {
$parent = $this->get_parent();
if($parent) {
$parent->remove_child($this);
}
$this->parent = $item;
}
/**
* Remove a child
*/
public function remove_child($item) {
$id = $item->get_id();
foreach($this->get_children() as $key => $child) {
if($child->get_id() == $id) {
unset($this->children[$key]);
// Reindex the array, in order to make sure there won't be any trouble on loops using count()
$this->children = array_values($this->children);
return true;
}
}
logger('[WARN] Item::remove_child : Item is not a child ('. $id .').', LOGGER_DEBUG);
return false;
}
/**
* Get parent item
*/
protected function get_parent() {
return $this->parent;
}
/**