63 lines
2.0 KiB
PHP
63 lines
2.0 KiB
PHP
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<?php
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// the base class to return data in JSON for aciTree
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// as you can see, keep it simple it's the best way to do things :D
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// note: you'll need PHP >= 5.2 to run this
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abstract class Tree {
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/**
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* Get tree branch as KEY => ITEM.
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* @param string $parentId - if NULL then it's the root
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* @return array
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*/
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abstract public function branch($parentId = null);
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/**
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* Get item properties (all default properties must be defined).
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* @param string $itemId
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* @return array
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*/
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public function itemProps($itemId) {
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return array(
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'inode' => null, // NULL = maybe a folder, TRUE - is a folder, FALSE - it's not a folder
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'open' => false, // should open folder?
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'icon' => null // icon CSS class name (if any) can be ARRAY [name, background X, background Y] (in this order)
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);
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}
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private function _json($parentId, Array &$json, $children) {
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$branch = $this->branch($parentId);
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foreach ($branch as $id => $label) {
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$props = $this->itemProps($id);
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$list = array();
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if ($children) {
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$this->_json($id, $list, $children);
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if (count($list) == 0) {
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$props['inode'] = false;
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}
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}
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$json[] = array_merge(array(
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'id' => $id,
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'label' => $label,
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'branch' => $list
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), $props);
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}
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}
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/**
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* Output tree JSON (array of id/item/props/items with props.inode depending if it's a TREE folder or not).
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* @param string $parentId
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* @param bool $children - include children?
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*/
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public function json($parentId, $children = false) {
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$json = array();
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$this->_json($parentId, $json, $children);
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header('Content-type: application/json; charset=UTF-8');
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header('Vary: Accept-Encoding');
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echo json_encode($json);
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die;
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}
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}
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