ref: master
plugins/display_content/public/javascripts/jstree-v.pre1.0/_demo/_inc/class.tree.php
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<?php class _tree_struct { // Structure table and fields protected $table = ""; protected $fields = array( "id" => false, "parent_id" => false, "position" => false, "left" => false, "right" => false, "level" => false ); // Constructor function __construct($table = "tree", $fields = array()) { $this->table = $table; if(!count($fields)) { foreach($this->fields as $k => &$v) { $v = $k; } } else { foreach($fields as $key => $field) { switch($key) { case "id": case "parent_id": case "position": case "left": case "right": case "level": $this->fields[$key] = $field; break; } } } // Database $this->db = new _database; } function _get_node($id) { $this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["id"]."` = ".(int) $id); $this->db->nextr(); return $this->db->nf() === 0 ? false : $this->db->get_row("assoc"); } function _get_children($id, $recursive = false) { $children = array(); if($recursive) { $node = $this->_get_node($id); $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"); } else { $this->db->query("SELECT `".implode("` , `", $this->fields)."` FROM `".$this->table."` WHERE `".$this->fields["parent_id"]."` = ".(int) $id." ORDER BY `".$this->fields["position"]."` ASC"); } while($this->db->nextr()) $children[$this->db->f($this->fields["id"])] = $this->db->get_row("assoc"); return $children; } function _get_path($id) { $node = $this->_get_node($id); $path = array(); if(!$node === false) return false; $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"]]); while($this->db->nextr()) $path[$this->db->f($this->fields["id"])] = $this->db->get_row("assoc"); return $path; } function _create($parent, $position) { return $this->_move(0, $parent, $position); } function _remove($id) { if((int)$id === 1) { return false; } $data = $this->_get_node($id); $lft = (int)$data[$this->fields["left"]]; $rgt = (int)$data[$this->fields["right"]]; $dif = $rgt - $lft + 1; // deleting node and its children $this->db->query("" . "DELETE FROM `".$this->table."` " . "WHERE `".$this->fields["left"]."` >= ".$lft." AND `".$this->fields["right"]."` <= ".$rgt ); // shift left indexes of nodes right of the node $this->db->query("". "UPDATE `".$this->table."` " . "SET `".$this->fields["left"]."` = `".$this->fields["left"]."` - ".$dif." " . "WHERE `".$this->fields["left"]."` > ".$rgt ); // shift right indexes of nodes right of the node and the node's parents $this->db->query("" . "UPDATE `".$this->table."` " . "SET `".$this->fields["right"]."` = `".$this->fields["right"]."` - ".$dif." " . "WHERE `".$this->fields["right"]."` > ".$lft ); $pid = (int)$data[$this->fields["parent_id"]]; $pos = (int)$data[$this->fields["position"]]; // Update position of siblings below the deleted node $this->db->query("" . "UPDATE `".$this->table."` " . "SET `".$this->fields["position"]."` = `".$this->fields["position"]."` - 1 " . "WHERE `".$this->fields["parent_id"]."` = ".$pid." AND `".$this->fields["position"]."` > ".$pos ); return true; } function _move($id, $ref_id, $position = 0, $is_copy = false) { if((int)$ref_id === 0 || (int)$id === 1) { return false; } $sql = array(); // Queries executed at the end $node = $this->_get_node($id); // Node data $nchildren = $this->_get_children($id); // Node children $ref_node = $this->_get_node($ref_id); // Ref node data $rchildren = $this->_get_children($ref_id);// Ref node children $ndif = 2; $node_ids = array(-1); if($node !== false) { $node_ids = array_keys($this->_get_children($id, true)); // TODO: should be !$is_copy && , but if copied to self - screws some right indexes if(in_array($ref_id, $node_ids)) return false; $ndif = $node[$this->fields["right"]] - $node[$this->fields["left"]] + 1; } if($position >= count($rchildren)) { $position = count($rchildren); } // Not creating or copying - old parent is cleaned if($node !== false && $is_copy == false) { $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["position"]."` = `".$this->fields["position"]."` - 1 " . "WHERE " . "`".$this->fields["parent_id"]."` = ".$node[$this->fields["parent_id"]]." AND " . "`".$this->fields["position"]."` > ".$node[$this->fields["position"]]; $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["left"]."` = `".$this->fields["left"]."` - ".$ndif." " . "WHERE `".$this->fields["left"]."` > ".$node[$this->fields["right"]]; $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["right"]."` = `".$this->fields["right"]."` - ".$ndif." " . "WHERE " . "`".$this->fields["right"]."` > ".$node[$this->fields["left"]]." AND " . "`".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") "; } // Preparing new parent $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["position"]."` = `".$this->fields["position"]."` + 1 " . "WHERE " . "`".$this->fields["parent_id"]."` = ".$ref_id." AND " . "`".$this->fields["position"]."` >= ".$position." " . ( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") "); $ref_ind = $ref_id === 0 ? (int)$rchildren[count($rchildren) - 1][$this->fields["right"]] + 1 : (int)$ref_node[$this->fields["right"]]; $ref_ind = max($ref_ind, 1); $self = ($node !== false && !$is_copy && (int)$node[$this->fields["parent_id"]] == $ref_id && $position > $node[$this->fields["position"]]) ? 1 : 0; foreach($rchildren as $k => $v) { if($v[$this->fields["position"]] - $self == $position) { $ref_ind = (int)$v[$this->fields["left"]]; break; } } if($node !== false && !$is_copy && $node[$this->fields["left"]] < $ref_ind) { $ref_ind -= $ndif; } $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["left"]."` = `".$this->fields["left"]."` + ".$ndif." " . "WHERE " . "`".$this->fields["left"]."` >= ".$ref_ind." " . ( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") "); $sql[] = "" . "UPDATE `".$this->table."` " . "SET `".$this->fields["right"]."` = `".$this->fields["right"]."` + ".$ndif." " . "WHERE " . "`".$this->fields["right"]."` >= ".$ref_ind." " . ( $is_copy ? "" : " AND `".$this->fields["id"]."` NOT IN (".implode(",", $node_ids).") "); $ldif = $ref_id == 0 ? 0 : $ref_node[$this->fields["level"]] + 1; $idif = $ref_ind; if($node !== false) { $ldif = $node[$this->fields["level"]] - ($ref_node[$this->fields["level"]] + 1); $idif = $node[$this->fields["left"]] - $ref_ind; if($is_copy) { $sql[] = "" . "INSERT INTO `".$this->table."` (" . "`".$this->fields["parent_id"]."`, " . "`".$this->fields["position"]."`, " . "`".$this->fields["left"]."`, " . "`".$this->fields["right"]."`, " . "`".$this->fields["level"]."`" . ") " . "SELECT " . "".$ref_id.", " . "`".$this->fields["position"]."`, " . "`".$this->fields["left"]."` - (".($idif + ($node[$this->fields["left"]] >= $ref_ind ? $ndif : 0))."), " . "`".$this->fields["right"]."` - (".($idif + ($node[$this->fields["left"]] >= $ref_ind ? $ndif : 0))."), " . "`".$this->fields["level"]."` - (".$ldif.") " . "FROM `".$this->table."` " . "WHERE " . "`".$this->fields["id"]."` IN (".implode(",", $node_ids).") " . "ORDER BY `".$this->fields["level"]."` ASC"; } else { $sql[] = "" . "UPDATE `".$this->table."` SET " . "`".$this->fields["parent_id"]."` = ".$ref_id.", " . "`".$this->fields["position"]."` = ".$position." " . "WHERE " . "`".$this->fields["id"]."` = ".$id; $sql[] = "" . "UPDATE `".$this->table."` SET " . "`".$this->fields["left"]."` = `".$this->fields["left"]."` - (".$idif."), " . "`".$this->fields["right"]."` = `".$this->fields["right"]."` - (".$idif."), " . "`".$this->fields["level"]."` = `".$this->fields["level"]."` - (".$ldif.") " . "WHERE " . "`".$this->fields["id"]."` IN (".implode(",", $node_ids).") "; } } else { $sql[] = "" . "INSERT INTO `".$this->table."` (" . "`".$this->fields["parent_id"]."`, " . "`".$this->fields["position"]."`, " . "`".$this->fields["left"]."`, " . "`".$this->fields["right"]."`, " . "`".$this->fields["level"]."` " . ") " . "VALUES (" . $ref_id.", " . $position.", " . $idif.", " . ($idif + 1).", " . $ldif. ")"; } foreach($sql as $q) { $this->db->query($q); } $ind = $this->db->insert_id(); if($is_copy) $this->_fix_copy($ind, $position); return $node === false || $is_copy ? $ind : true; } function _fix_copy($id, $position) { $node = $this->_get_node($id); $children = $this->_get_children($id, true); $map = array(); for($i = $node[$this->fields["left"]] + 1; $i < $node[$this->fields["right"]]; $i++) { $map[$i] = $id; } foreach($children as $cid => $child) { if((int)$cid == (int)$id) { $this->db->query("UPDATE `".$this->table."` SET `".$this->fields["position"]."` = ".$position." WHERE `".$this->fields["id"]."` = ".$cid); continue; } $this->db->query("UPDATE `".$this->table."` SET `".$this->fields["parent_id"]."` = ".$map[(int)$child[$this->fields["left"]]]." WHERE `".$this->fields["id"]."` = ".$cid); for($i = $child[$this->fields["left"]] + 1; $i < $child[$this->fields["right"]]; $i++) { $map[$i] = $cid; } } } function _reconstruct() { $this->db->query("" . "CREATE TEMPORARY TABLE `temp_tree` (" . "`".$this->fields["id"]."` INTEGER NOT NULL, " . "`".$this->fields["parent_id"]."` INTEGER NOT NULL, " . "`". $this->fields["position"]."` INTEGER NOT NULL" . ") type=HEAP" ); $this->db->query("" . "INSERT INTO `temp_tree` " . "SELECT " . "`".$this->fields["id"]."`, " . "`".$this->fields["parent_id"]."`, " . "`".$this->fields["position"]."` " . "FROM `".$this->table."`" ); $this->db->query("" . "CREATE TEMPORARY TABLE `temp_stack` (" . "`".$this->fields["id"]."` INTEGER NOT NULL, " . "`".$this->fields["left"]."` INTEGER, " . "`".$this->fields["right"]."` INTEGER, " . "`".$this->fields["level"]."` INTEGER, " . "`stack_top` INTEGER NOT NULL, " . "`".$this->fields["parent_id"]."` INTEGER, " . "`".$this->fields["position"]."` INTEGER " . ") type=HEAP" ); $counter = 2; $this->db->query("SELECT COUNT(*) FROM temp_tree"); $this->db->nextr(); $maxcounter = (int) $this->db->f(0) * 2; $currenttop = 1; $this->db->query("" . "INSERT INTO `temp_stack` " . "SELECT " . "`".$this->fields["id"]."`, " . "1, " . "NULL, " . "0, " . "1, " . "`".$this->fields["parent_id"]."`, " . "`".$this->fields["position"]."` " . "FROM `temp_tree` " . "WHERE `".$this->fields["parent_id"]."` = 0" ); $this->db->query("DELETE FROM `temp_tree` WHERE `".$this->fields["parent_id"]."` = 0"); while ($counter <= $maxcounter) { $this->db->query("" . "SELECT " . "`temp_tree`.`".$this->fields["id"]."` AS tempmin, " . "`temp_tree`.`".$this->fields["parent_id"]."` AS pid, " . "`temp_tree`.`".$this->fields["position"]."` AS lid " . "FROM `temp_stack`, `temp_tree` " . "WHERE " . "`temp_stack`.`".$this->fields["id"]."` = `temp_tree`.`".$this->fields["parent_id"]."` AND " . "`temp_stack`.`stack_top` = ".$currenttop." " . "ORDER BY `temp_tree`.`".$this->fields["position"]."` ASC LIMIT 1" ); if ($this->db->nextr()) { $tmp = $this->db->f("tempmin"); $q = "INSERT INTO temp_stack (stack_top, `".$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").")"; $this->db->query($q); $this->db->query("DELETE FROM `temp_tree` WHERE `".$this->fields["id"]."` = ".$tmp); $counter++; $currenttop++; } else { $this->db->query("" . "UPDATE temp_stack SET " . "`".$this->fields["right"]."` = ".$counter.", " . "`stack_top` = -`stack_top` " . "WHERE `stack_top` = ".$currenttop ); $counter++; $currenttop--; } } $temp_fields = $this->fields; unset($temp_fields["parent_id"]); unset($temp_fields["position"]); unset($temp_fields["left"]); unset($temp_fields["right"]); unset($temp_fields["level"]); if(count($temp_fields) > 1) { $this->db->query("" . "CREATE TEMPORARY TABLE `temp_tree2` " . "SELECT `".implode("`, `", $temp_fields)."` FROM `".$this->table."` " ); } $this->db->query("TRUNCATE TABLE `".$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"]."` " . ") " . "SELECT " . "`".$this->fields["id"]."`, " . "`".$this->fields["parent_id"]."`, " . "`".$this->fields["position"]."`, " . "`".$this->fields["left"]."`, " . "`".$this->fields["right"]."`, " . "`".$this->fields["level"]."` " . "FROM temp_stack " . "ORDER BY `".$this->fields["id"]."`" ); if(count($temp_fields) > 1) { $sql = "" . "UPDATE `".$this->table."` v, `temp_tree2` SET v.`".$this->fields["id"]."` = v.`".$this->fields["id"]."` "; foreach($temp_fields as $k => $v) { if($k == "id") continue; $sql .= ", v.`".$v."` = `temp_tree2`.`".$v."` "; } $sql .= " WHERE v.`".$this->fields["id"]."` = `temp_tree2`.`".$this->fields["id"]."` "; $this->db->query($sql); } } function _analyze() { $report = array(); $this->db->query("" . "SELECT " . "`".$this->fields["left"]."` FROM `".$this->table."` s " . "WHERE " . "`".$this->fields["parent_id"]."` = 0 " ); $this->db->nextr(); if($this->db->nf() == 0) { $report[] = "[FAIL]\tNo root node."; } 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" )); } } ?> |