Item: parent/children relationship. get_parent now returns an Item (or null)
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@ -21,12 +21,20 @@ class Item extends BaseObject {
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private $profile_owner = 0;
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private $toplevel = false;
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private $writeable = false;
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private $children = array();
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private $parent = null;
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public function __construct($data) {
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$this->data = $data;
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$this->set_template('wall');
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$this->toplevel = ($this->get_id() == $this->get_parent());
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$this->toplevel = ($this->get_id() == $this->get_data_value('parent'));
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$this->writeable = ($this->get_data_value('writeable') || $this->get_data_value('self'));
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// Prepare the children
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foreach($data['children'] as $item) {
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$child = new Item($item);
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$this->add_child($child);
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}
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}
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/**
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@ -338,9 +346,76 @@ class Item extends BaseObject {
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public function get_thumb() {
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return $this->get_data_value('thumb');
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}
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public function get_parent() {
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return $this->get_data_value('parent');
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/**
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* Add a child item
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*/
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public function add_child($item) {
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$item_id = $item->get_id();
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if(!$item_id) {
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logger('[ERROR] Item::add_child : Item has no ID!!', LOGGER_DEBUG);
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return false;
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}
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if($this->get_child($item->get_id())) {
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logger('[WARN] Item::add_child : Item already exists ('. $item->get_id() .').', LOGGER_DEBUG);
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return false;
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}
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$item->set_parent($this);
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$this->children[] = $item;
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return end($this->children);
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}
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/**
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* Get a child by its ID
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*/
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public function get_child($id) {
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foreach($this->get_children() as $child) {
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if($child->get_id() == $id)
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return $child;
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}
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return null;
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}
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/**
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* Get all ou children
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*/
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public function get_children() {
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return $this->children;
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}
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/**
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* Set our parent
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*/
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protected function set_parent($item) {
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$parent = $this->get_parent();
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if($parent) {
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$parent->remove_child($this);
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}
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$this->parent = $item;
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}
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/**
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* Remove a child
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*/
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public function remove_child($item) {
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$id = $item->get_id();
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foreach($this->get_children() as $key => $child) {
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if($child->get_id() == $id) {
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unset($this->children[$key]);
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// Reindex the array, in order to make sure there won't be any trouble on loops using count()
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$this->children = array_values($this->children);
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return true;
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}
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}
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logger('[WARN] Item::remove_child : Item is not a child ('. $id .').', LOGGER_DEBUG);
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return false;
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}
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/**
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* Get parent item
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*/
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protected function get_parent() {
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return $this->parent;
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}
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/**
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