mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-07-03 18:09:53 +02:00
603 lines
22 KiB
PHP
603 lines
22 KiB
PHP
<?php
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class _tree_struct {
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// Structure table and fields
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protected $table = "";
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protected $fields = array(
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"id" => false,
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"parent_id" => false,
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"position" => false,
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"left" => false,
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"right" => false,
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"level" => false
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);
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// Constructor
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function __construct($table = "tree", $fields = array()) {
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$this->table = $table;
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if(!count($fields)) {
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foreach($this->fields as $k => &$v) { $v = $k; }
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}
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else {
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foreach($fields as $key => $field) {
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switch($key) {
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case "id":
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case "parent_id":
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case "position":
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case "left":
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case "right":
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case "level":
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$this->fields[$key] = $field;
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break;
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}
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}
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}
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// Database
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$this->db = new _database;
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}
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function _get_node($id) {
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$this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["id"]."` = ".(int) $id);
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$this->db->nextr();
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return $this->db->nf() === 0 ? false : $this->db->get_row("assoc");
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}
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function _get_children($id, $recursive = false) {
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$children = array();
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if($recursive) {
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$node = $this->_get_node($id);
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$this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["left"]."` >= ".(int) $node[$this->fields["left"]]." AND `".$this->fields["right"]."` <= ".(int) $node[$this->fields["right"]]." ORDER BY `".$this->fields["left"]."` ASC");
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}
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else {
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$this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["parent_id"]."` = ".(int) $id." ORDER BY `".$this->fields["position"]."` ASC");
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}
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while($this->db->nextr()) $children[$this->db->f($this->fields["id"])] = $this->db->get_row("assoc");
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return $children;
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}
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function _get_path($id) {
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$node = $this->_get_node($id);
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$path = array();
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if(!$node === false) return false;
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$this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["left"]."` <= ".(int) $node[$this->fields["left"]]." AND `".$this->fields["right"]."` >= ".(int) $node[$this->fields["right"]]);
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while($this->db->nextr()) $path[$this->db->f($this->fields["id"])] = $this->db->get_row("assoc");
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return $path;
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}
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function _create($parent, $position) {
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return $this->_move(0, $parent, $position);
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}
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function _remove($id) {
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if((int)$id === 1) { return false; }
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$data = $this->_get_node($id);
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$lft = (int)$data[$this->fields["left"]];
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$rgt = (int)$data[$this->fields["right"]];
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$dif = $rgt - $lft + 1;
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// deleting node and its children
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$this->db->query("" .
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"DELETE FROM `".$this->table."` " .
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"WHERE `".$this->fields["left"]."` >= ".$lft." AND `".$this->fields["right"]."` <= ".$rgt
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);
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// shift left indexes of nodes right of the node
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$this->db->query("".
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["left"]."` = `".$this->fields["left"]."` - ".$dif." " .
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"WHERE `".$this->fields["left"]."` > ".$rgt
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);
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// shift right indexes of nodes right of the node and the node's parents
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$this->db->query("" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["right"]."` = `".$this->fields["right"]."` - ".$dif." " .
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"WHERE `".$this->fields["right"]."` > ".$lft
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);
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$pid = (int)$data[$this->fields["parent_id"]];
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$pos = (int)$data[$this->fields["position"]];
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// Update position of siblings below the deleted node
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$this->db->query("" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["position"]."` = `".$this->fields["position"]."` - 1 " .
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"WHERE `".$this->fields["parent_id"]."` = ".$pid." AND `".$this->fields["position"]."` > ".$pos
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);
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return true;
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}
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function _move($id, $ref_id, $position = 0, $is_copy = false) {
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if((int)$ref_id === 0 || (int)$id === 1) { return false; }
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$sql = array(); // Queries executed at the end
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$node = $this->_get_node($id); // Node data
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$nchildren = $this->_get_children($id); // Node children
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$ref_node = $this->_get_node($ref_id); // Ref node data
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$rchildren = $this->_get_children($ref_id);// Ref node children
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$ndif = 2;
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$node_ids = array(-1);
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if($node !== false) {
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$node_ids = array_keys($this->_get_children($id, true));
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// TODO: should be !$is_copy && , but if copied to self - screws some right indexes
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if(in_array($ref_id, $node_ids)) return false;
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$ndif = $node[$this->fields["right"]] - $node[$this->fields["left"]] + 1;
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}
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if($position >= count($rchildren)) {
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$position = count($rchildren);
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}
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// Not creating or copying - old parent is cleaned
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if($node !== false && $is_copy == false) {
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["position"]."` = `".$this->fields["position"]."` - 1 " .
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"WHERE " .
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"`".$this->fields["parent_id"]."` = ".$node[$this->fields["parent_id"]]." AND " .
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"`".$this->fields["position"]."` > ".$node[$this->fields["position"]];
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["left"]."` = `".$this->fields["left"]."` - ".$ndif." " .
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"WHERE `".$this->fields["left"]."` > ".$node[$this->fields["right"]];
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["right"]."` = `".$this->fields["right"]."` - ".$ndif." " .
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"WHERE " .
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"`".$this->fields["right"]."` > ".$node[$this->fields["left"]]." AND " .
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"`".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") ";
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}
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// Preparing new parent
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["position"]."` = `".$this->fields["position"]."` + 1 " .
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"WHERE " .
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"`".$this->fields["parent_id"]."` = ".$ref_id." AND " .
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"`".$this->fields["position"]."` >= ".$position." " .
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( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") ");
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$ref_ind = $ref_id === 0 ? (int)$rchildren[count($rchildren) - 1][$this->fields["right"]] + 1 : (int)$ref_node[$this->fields["right"]];
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$ref_ind = max($ref_ind, 1);
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$self = ($node !== false && !$is_copy && (int)$node[$this->fields["parent_id"]] == $ref_id && $position > $node[$this->fields["position"]]) ? 1 : 0;
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foreach($rchildren as $k => $v) {
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if($v[$this->fields["position"]] - $self == $position) {
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$ref_ind = (int)$v[$this->fields["left"]];
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break;
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}
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}
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if($node !== false && !$is_copy && $node[$this->fields["left"]] < $ref_ind) {
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$ref_ind -= $ndif;
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}
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["left"]."` = `".$this->fields["left"]."` + ".$ndif." " .
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"WHERE " .
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"`".$this->fields["left"]."` >= ".$ref_ind." " .
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( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") ");
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$sql[] = "" .
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"UPDATE `".$this->table."` " .
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"SET `".$this->fields["right"]."` = `".$this->fields["right"]."` + ".$ndif." " .
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"WHERE " .
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"`".$this->fields["right"]."` >= ".$ref_ind." " .
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( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") ");
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$ldif = $ref_id == 0 ? 0 : $ref_node[$this->fields["level"]] + 1;
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$idif = $ref_ind;
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if($node !== false) {
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$ldif = $node[$this->fields["level"]] - ($ref_node[$this->fields["level"]] + 1);
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$idif = $node[$this->fields["left"]] - $ref_ind;
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if($is_copy) {
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$sql[] = "" .
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"INSERT INTO `".$this->table."` (" .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."`, " .
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"`".$this->fields["left"]."`, " .
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"`".$this->fields["right"]."`, " .
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"`".$this->fields["level"]."`" .
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") " .
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"SELECT " .
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"".$ref_id.", " .
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"`".$this->fields["position"]."`, " .
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"`".$this->fields["left"]."` - (".($idif + ($node[$this->fields["left"]] >= $ref_ind ? $ndif : 0))."), " .
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"`".$this->fields["right"]."` - (".($idif + ($node[$this->fields["left"]] >= $ref_ind ? $ndif : 0))."), " .
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"`".$this->fields["level"]."` - (".$ldif.") " .
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"FROM `".$this->table."` " .
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"WHERE " .
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"`".$this->fields["id"]."` IN (".implode(",", $node_ids).") " .
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"ORDER BY `".$this->fields["level"]."` ASC";
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}
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else {
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$sql[] = "" .
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"UPDATE `".$this->table."` SET " .
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"`".$this->fields["parent_id"]."` = ".$ref_id.", " .
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"`".$this->fields["position"]."` = ".$position." " .
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"WHERE " .
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"`".$this->fields["id"]."` = ".$id;
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$sql[] = "" .
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"UPDATE `".$this->table."` SET " .
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"`".$this->fields["left"]."` = `".$this->fields["left"]."` - (".$idif."), " .
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"`".$this->fields["right"]."` = `".$this->fields["right"]."` - (".$idif."), " .
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"`".$this->fields["level"]."` = `".$this->fields["level"]."` - (".$ldif.") " .
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"WHERE " .
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"`".$this->fields["id"]."` IN (".implode(",", $node_ids).") ";
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}
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}
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else {
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$sql[] = "" .
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"INSERT INTO `".$this->table."` (" .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."`, " .
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"`".$this->fields["left"]."`, " .
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"`".$this->fields["right"]."`, " .
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"`".$this->fields["level"]."` " .
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") " .
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"VALUES (" .
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$ref_id.", " .
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$position.", " .
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$idif.", " .
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($idif + 1).", " .
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$ldif.
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")";
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}
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foreach($sql as $q) { $this->db->query($q); }
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$ind = $this->db->insert_id();
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if($is_copy) $this->_fix_copy($ind, $position);
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return $node === false || $is_copy ? $ind : true;
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}
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function _fix_copy($id, $position) {
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$node = $this->_get_node($id);
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$children = $this->_get_children($id, true);
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$map = array();
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for($i = $node[$this->fields["left"]] + 1; $i < $node[$this->fields["right"]]; $i++) {
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$map[$i] = $id;
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}
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foreach($children as $cid => $child) {
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if((int)$cid == (int)$id) {
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$this->db->query("UPDATE `".$this->table."` SET `".$this->fields["position"]."` = ".$position." WHERE `".$this->fields["id"]."` = ".$cid);
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continue;
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}
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$this->db->query("UPDATE `".$this->table."` SET `".$this->fields["parent_id"]."` = ".$map[(int)$child[$this->fields["left"]]]." WHERE `".$this->fields["id"]."` = ".$cid);
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for($i = $child[$this->fields["left"]] + 1; $i < $child[$this->fields["right"]]; $i++) {
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$map[$i] = $cid;
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}
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}
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}
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function _reconstruct() {
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$this->db->query("" .
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"CREATE TEMPORARY TABLE `temp_tree` (" .
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"`".$this->fields["id"]."` INTEGER NOT NULL, " .
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"`".$this->fields["parent_id"]."` INTEGER NOT NULL, " .
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"`". $this->fields["position"]."` INTEGER NOT NULL" .
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") type=HEAP"
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);
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$this->db->query("" .
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"INSERT INTO `temp_tree` " .
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"SELECT " .
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"`".$this->fields["id"]."`, " .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."` " .
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"FROM `".$this->table."`"
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);
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$this->db->query("" .
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"CREATE TEMPORARY TABLE `temp_stack` (" .
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"`".$this->fields["id"]."` INTEGER NOT NULL, " .
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"`".$this->fields["left"]."` INTEGER, " .
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"`".$this->fields["right"]."` INTEGER, " .
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"`".$this->fields["level"]."` INTEGER, " .
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"`stack_top` INTEGER NOT NULL, " .
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"`".$this->fields["parent_id"]."` INTEGER, " .
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"`".$this->fields["position"]."` INTEGER " .
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") type=HEAP"
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);
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$counter = 2;
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$this->db->query("SELECT COUNT(*) FROM temp_tree");
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$this->db->nextr();
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$maxcounter = (int) $this->db->f(0) * 2;
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$currenttop = 1;
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$this->db->query("" .
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"INSERT INTO `temp_stack` " .
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"SELECT " .
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"`".$this->fields["id"]."`, " .
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"1, " .
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"NULL, " .
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"0, " .
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"1, " .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."` " .
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"FROM `temp_tree` " .
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"WHERE `".$this->fields["parent_id"]."` = 0"
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);
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$this->db->query("DELETE FROM `temp_tree` WHERE `".$this->fields["parent_id"]."` = 0");
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while ($counter <= $maxcounter) {
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$this->db->query("" .
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"SELECT " .
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"`temp_tree`.`".$this->fields["id"]."` AS tempmin, " .
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"`temp_tree`.`".$this->fields["parent_id"]."` AS pid, " .
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"`temp_tree`.`".$this->fields["position"]."` AS lid " .
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"FROM `temp_stack`, `temp_tree` " .
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"WHERE " .
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"`temp_stack`.`".$this->fields["id"]."` = `temp_tree`.`".$this->fields["parent_id"]."` AND " .
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"`temp_stack`.`stack_top` = ".$currenttop." " .
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"ORDER BY `temp_tree`.`".$this->fields["position"]."` ASC LIMIT 1"
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);
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if ($this->db->nextr()) {
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$tmp = $this->db->f("tempmin");
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$q = "INSERT INTO temp_stack (stack_top, `".$this->fields["id"]."`, `".$this->fields["left"]."`, `".$this->fields["right"]."`, `".$this->fields["level"]."`, `".$this->fields["parent_id"]."`, `".$this->fields["position"]."`) VALUES(".($currenttop + 1).", ".$tmp.", ".$counter.", NULL, ".$currenttop.", ".$this->db->f("pid").", ".$this->db->f("lid").")";
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$this->db->query($q);
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$this->db->query("DELETE FROM `temp_tree` WHERE `".$this->fields["id"]."` = ".$tmp);
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$counter++;
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$currenttop++;
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}
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else {
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$this->db->query("" .
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"UPDATE temp_stack SET " .
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"`".$this->fields["right"]."` = ".$counter.", " .
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"`stack_top` = -`stack_top` " .
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"WHERE `stack_top` = ".$currenttop
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);
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$counter++;
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$currenttop--;
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}
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}
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$temp_fields = $this->fields;
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unset($temp_fields["parent_id"]);
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unset($temp_fields["position"]);
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unset($temp_fields["left"]);
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unset($temp_fields["right"]);
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unset($temp_fields["level"]);
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if(count($temp_fields) > 1) {
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$this->db->query("" .
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"CREATE TEMPORARY TABLE `temp_tree2` " .
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"SELECT `".implode("`, `", $temp_fields)."` FROM `".$this->table."` "
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);
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}
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$this->db->query("TRUNCATE TABLE `".$this->table."`");
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$this->db->query("" .
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"INSERT INTO ".$this->table." (" .
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"`".$this->fields["id"]."`, " .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."`, " .
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"`".$this->fields["left"]."`, " .
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"`".$this->fields["right"]."`, " .
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"`".$this->fields["level"]."` " .
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") " .
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"SELECT " .
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"`".$this->fields["id"]."`, " .
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"`".$this->fields["parent_id"]."`, " .
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"`".$this->fields["position"]."`, " .
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"`".$this->fields["left"]."`, " .
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"`".$this->fields["right"]."`, " .
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"`".$this->fields["level"]."` " .
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"FROM temp_stack " .
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"ORDER BY `".$this->fields["id"]."`"
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);
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if(count($temp_fields) > 1) {
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$sql = "" .
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"UPDATE `".$this->table."` v, `temp_tree2` SET v.`".$this->fields["id"]."` = v.`".$this->fields["id"]."` ";
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foreach($temp_fields as $k => $v) {
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if($k == "id") continue;
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$sql .= ", v.`".$v."` = `temp_tree2`.`".$v."` ";
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}
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$sql .= " WHERE v.`".$this->fields["id"]."` = `temp_tree2`.`".$this->fields["id"]."` ";
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$this->db->query($sql);
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}
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}
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function _analyze() {
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$report = array();
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$this->db->query("" .
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"SELECT " .
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"`".$this->fields["left"]."` FROM `".$this->table."` s " .
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"WHERE " .
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"`".$this->fields["parent_id"]."` = 0 "
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);
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$this->db->nextr();
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if($this->db->nf() == 0) {
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$report[] = "[FAIL]\tNo root node.";
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}
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else {
|
|
$report[] = ($this->db->nf() > 1) ? "[FAIL]\tMore than one root node." : "[OK]\tJust one root node.";
|
|
}
|
|
$report[] = ($this->db->f(0) != 1) ? "[FAIL]\tRoot node's left index is not 1." : "[OK]\tRoot node's left index is 1.";
|
|
|
|
$this->db->query("" .
|
|
"SELECT " .
|
|
"COUNT(*) FROM `".$this->table."` s " .
|
|
"WHERE " .
|
|
"`".$this->fields["parent_id"]."` != 0 AND " .
|
|
"(SELECT COUNT(*) FROM `".$this->table."` WHERE `".$this->fields["id"]."` = s.`".$this->fields["parent_id"]."`) = 0 ");
|
|
$this->db->nextr();
|
|
$report[] = ($this->db->f(0) > 0) ? "[FAIL]\tMissing parents." : "[OK]\tNo missing parents.";
|
|
|
|
$this->db->query("SELECT MAX(`".$this->fields["right"]."`) FROM `".$this->table."`");
|
|
$this->db->nextr();
|
|
$n = $this->db->f(0);
|
|
$this->db->query("SELECT COUNT(*) FROM `".$this->table."`");
|
|
$this->db->nextr();
|
|
$c = $this->db->f(0);
|
|
$report[] = ($n/2 != $c) ? "[FAIL]\tRight index does not match node count." : "[OK]\tRight index matches count.";
|
|
|
|
$this->db->query("" .
|
|
"SELECT COUNT(`".$this->fields["id"]."`) FROM `".$this->table."` s " .
|
|
"WHERE " .
|
|
"(SELECT COUNT(*) FROM `".$this->table."` WHERE " .
|
|
"`".$this->fields["right"]."` < s.`".$this->fields["right"]."` AND " .
|
|
"`".$this->fields["left"]."` > s.`".$this->fields["left"]."` AND " .
|
|
"`".$this->fields["level"]."` = s.`".$this->fields["level"]."` + 1" .
|
|
") != " .
|
|
"(SELECT COUNT(*) FROM `".$this->table."` WHERE " .
|
|
"`".$this->fields["parent_id"]."` = s.`".$this->fields["id"]."`" .
|
|
") "
|
|
);
|
|
$this->db->nextr();
|
|
$report[] = ($this->db->f(0) > 0) ? "[FAIL]\tAdjacency and nested set do not match." : "[OK]\tNS and AJ match";
|
|
|
|
return implode("<br />",$report);
|
|
}
|
|
|
|
function _dump($output = false) {
|
|
$nodes = array();
|
|
$this->db->query("SELECT * FROM ".$this->table." ORDER BY `".$this->fields["left"]."`");
|
|
while($this->db->nextr()) $nodes[] = $this->db->get_row("assoc");
|
|
if($output) {
|
|
echo "<pre>";
|
|
foreach($nodes as $node) {
|
|
echo str_repeat(" ",(int)$node[$this->fields["level"]] * 2);
|
|
echo $node[$this->fields["id"]]." (".$node[$this->fields["left"]].",".$node[$this->fields["right"]].",".$node[$this->fields["level"]].",".$node[$this->fields["parent_id"]].",".$node[$this->fields["position"]].")<br />";
|
|
}
|
|
echo str_repeat("-",40);
|
|
echo "</pre>";
|
|
}
|
|
return $nodes;
|
|
}
|
|
function _drop() {
|
|
$this->db->query("TRUNCATE TABLE `".$this->table."`");
|
|
$this->db->query("" .
|
|
"INSERT INTO `".$this->table."` (" .
|
|
"`".$this->fields["id"]."`, " .
|
|
"`".$this->fields["parent_id"]."`, " .
|
|
"`".$this->fields["position"]."`, " .
|
|
"`".$this->fields["left"]."`, " .
|
|
"`".$this->fields["right"]."`, " .
|
|
"`".$this->fields["level"]."` " .
|
|
") " .
|
|
"VALUES (" .
|
|
"1, " .
|
|
"0, " .
|
|
"0, " .
|
|
"1, " .
|
|
"2, " .
|
|
"0 ".
|
|
")");
|
|
}
|
|
}
|
|
|
|
class json_tree extends _tree_struct {
|
|
function __construct($table = "tree", $fields = array(), $add_fields = array("title" => "title", "type" => "type")) {
|
|
parent::__construct($table, $fields);
|
|
$this->fields = array_merge($this->fields, $add_fields);
|
|
$this->add_fields = $add_fields;
|
|
}
|
|
|
|
function create_node($data) {
|
|
$id = parent::_create((int)$data[$this->fields["id"]], (int)$data[$this->fields["position"]]);
|
|
if($id) {
|
|
$data["id"] = $id;
|
|
$this->set_data($data);
|
|
return "{ \"status\" : 1, \"id\" : ".(int)$id." }";
|
|
}
|
|
return "{ \"status\" : 0 }";
|
|
}
|
|
function set_data($data) {
|
|
if(count($this->add_fields) == 0) { return "{ \"status\" : 1 }"; }
|
|
$s = "UPDATE `".$this->table."` SET `".$this->fields["id"]."` = `".$this->fields["id"]."` ";
|
|
foreach($this->add_fields as $k => $v) {
|
|
if(isset($data[$k])) $s .= ", `".$this->fields[$v]."` = \"".$this->db->escape($data[$k])."\" ";
|
|
else $s .= ", `".$this->fields[$v]."` = `".$this->fields[$v]."` ";
|
|
}
|
|
$s .= "WHERE `".$this->fields["id"]."` = ".(int)$data["id"];
|
|
$this->db->query($s);
|
|
return "{ \"status\" : 1 }";
|
|
}
|
|
function rename_node($data) { return $this->set_data($data); }
|
|
|
|
function move_node($data) {
|
|
$id = parent::_move((int)$data["id"], (int)$data["ref"], (int)$data["position"], (int)$data["copy"]);
|
|
if(!$id) return "{ \"status\" : 0 }";
|
|
if((int)$data["copy"] && count($this->add_fields)) {
|
|
$ids = array_keys($this->_get_children($id, true));
|
|
$data = $this->_get_children((int)$data["id"], true);
|
|
|
|
$i = 0;
|
|
foreach($data as $dk => $dv) {
|
|
$s = "UPDATE `".$this->table."` SET `".$this->fields["id"]."` = `".$this->fields["id"]."` ";
|
|
foreach($this->add_fields as $k => $v) {
|
|
if(isset($dv[$k])) $s .= ", `".$this->fields[$v]."` = \"".$this->db->escape($dv[$k])."\" ";
|
|
else $s .= ", `".$this->fields[$v]."` = `".$this->fields[$v]."` ";
|
|
}
|
|
$s .= "WHERE `".$this->fields["id"]."` = ".$ids[$i];
|
|
$this->db->query($s);
|
|
$i++;
|
|
}
|
|
}
|
|
return "{ \"status\" : 1, \"id\" : ".$id." }";
|
|
}
|
|
function remove_node($data) {
|
|
$id = parent::_remove((int)$data["id"]);
|
|
return "{ \"status\" : 1 }";
|
|
}
|
|
function get_children($data) {
|
|
$tmp = $this->_get_children((int)$data["id"]);
|
|
if((int)$data["id"] === 1 && count($tmp) === 0) {
|
|
$this->_create_default();
|
|
$tmp = $this->_get_children((int)$data["id"]);
|
|
}
|
|
$result = array();
|
|
if((int)$data["id"] === 0) return json_encode($result);
|
|
foreach($tmp as $k => $v) {
|
|
$result[] = array(
|
|
"attr" => array("id" => "node_".$k, "rel" => $v[$this->fields["type"]]),
|
|
"data" => $v[$this->fields["title"]],
|
|
"state" => ((int)$v[$this->fields["right"]] - (int)$v[$this->fields["left"]] > 1) ? "closed" : ""
|
|
);
|
|
}
|
|
return json_encode($result);
|
|
}
|
|
function search($data) {
|
|
$this->db->query("SELECT `".$this->fields["left"]."`, `".$this->fields["right"]."` FROM `".$this->table."` WHERE `".$this->fields["title"]."` LIKE '%".$this->db->escape($data["search_str"])."%'");
|
|
if($this->db->nf() === 0) return "[]";
|
|
$q = "SELECT DISTINCT `".$this->fields["id"]."` FROM `".$this->table."` WHERE 0 ";
|
|
while($this->db->nextr()) {
|
|
$q .= " OR (`".$this->fields["left"]."` < ".(int)$this->db->f(0)." AND `".$this->fields["right"]."` > ".(int)$this->db->f(1).") ";
|
|
}
|
|
$result = array();
|
|
$this->db->query($q);
|
|
while($this->db->nextr()) { $result[] = "#node_".$this->db->f(0); }
|
|
return json_encode($result);
|
|
}
|
|
|
|
function _create_default() {
|
|
$this->_drop();
|
|
$this->create_node(array(
|
|
"id" => 1,
|
|
"position" => 0,
|
|
"title" => "C:",
|
|
"type" => "drive"
|
|
));
|
|
$this->create_node(array(
|
|
"id" => 1,
|
|
"position" => 1,
|
|
"title" => "D:",
|
|
"type" => "drive"
|
|
));
|
|
$this->create_node(array(
|
|
"id" => 2,
|
|
"position" => 0,
|
|
"title" => "_demo",
|
|
"type" => "folder"
|
|
));
|
|
$this->create_node(array(
|
|
"id" => 2,
|
|
"position" => 1,
|
|
"title" => "_docs",
|
|
"type" => "folder"
|
|
));
|
|
$this->create_node(array(
|
|
"id" => 4,
|
|
"position" => 0,
|
|
"title" => "index.html",
|
|
"type" => "default"
|
|
));
|
|
$this->create_node(array(
|
|
"id" => 5,
|
|
"position" => 1,
|
|
"title" => "doc.html",
|
|
"type" => "default"
|
|
));
|
|
}
|
|
}
|
|
|
|
?>
|