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<?
# Lifter002: TODO
# Lifter007: TODO
# Lifter003: TODO
# Lifter010: TODO
// +---------------------------------------------------------------------------+
// This file is part of Stud.IP
// StudipRangeTree.class.php
// Class to handle structure of the "range tree"
//
// Copyright (c) 2002 André Noack <noack@data-quest.de>
// Suchi & Berg GmbH <info@data-quest.de>
// +---------------------------------------------------------------------------+
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or any later version.
// +---------------------------------------------------------------------------+
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// +---------------------------------------------------------------------------+
/**
* class to handle the "range tree"
*
* This class provides an interface to the structure of the "range tree"
*
* @access public
* @author André Noack <noack@data-quest.de>
* @package
*/
class StudipRangeTree extends TreeAbstract
{
var $sem_number;
var $sem_status;
var $sem_dates;
var $studip_objects = [];
var $visible_only;
var $entries_init_done = false;
/**
* constructor
*
* do not use directly, call TreeAbstract::GetInstance("StudipRangeTree")
* @access private
*/
function __construct($args) {
DbView::addView('range_tree');
$this->root_name = Config::get()->UNI_NAME_CLEAN;
$this->studip_objects['inst'] = ['pk' => 'Institut_id', 'table' => 'Institute'];
$this->studip_objects['fak'] = ['pk' => 'Institut_id', 'table' => 'Institute'];
if (isset($args['sem_number']) ){
$this->sem_number = array_map('intval', $args['sem_number']);
}
if (isset($args['sem_status']) ){
$this->sem_status = array_map('intval', $args['sem_status']);
}
$this->visible_only = (int)$args['visible_only'];
parent::__construct(); //calling the baseclass constructor
$this->sem_dates = Semester::findAllVisible();
}
/**
* initializes the tree
*
* stores all rows from table range_tree in array $tree_data
* @access public
*/
function init(){
parent::init();
$this->tree_data['root']['studip_object_id'] = 'root';
$db = $this->view->get_query("view:TREE_GET_DATA");
while ($db->next_record()){
$item_name = $db->f("name");
if ($db->f("studip_object")){
$item_name = $db->f("studip_object_name");
}
$this->tree_data[$db->f("item_id")] = ["studip_object" => $db->f("studip_object"),
"studip_object_id" => $db->f("studip_object_id"),
"fakultaets_id" => $db->f("fakultaets_id"),"entries" => 0];
$this->storeItem($db->f("item_id"), $db->f("parent_id"), $item_name, $db->f("priority"));
}
}
function initEntries(){
$this->view->params[0] = (isset($this->sem_status)) ? " AND d.status IN('" . join("','", $this->sem_status) . "')" : " ";
$this->view->params[0] .= $this->visible_only ? " AND visible=1 " : "";
$this->view->params[1] = (isset($this->sem_number)) ? " WHERE ((" . $this->view->sem_number_sql
. ") IN (" . join(",",$this->sem_number) .") OR ((" . $this->view->sem_number_sql
.") <= " . $this->sem_number[count($this->sem_number)-1]
. " AND ((" . $this->view->sem_number_end_sql . ") >= " . $this->sem_number[count($this->sem_number)-1]
. " OR (" . $this->view->sem_number_end_sql . ") = -1))) " : "";
$db = $this->view->get_query("view:TREE_GET_SEM_ENTRIES");
while ($db->next_record()){
$this->tree_data[$db->f("item_id")]['entries'] = $db->f('entries');
}
$this->entries_init_done = true;
}
/**
* Returns Stud.IP range_id of the next "real" object
*
* This function finds the next item wich is a real Stud.IP Object, either an "Einrichtung" or a "Fakultaet"<br>
* useful for the user rights management
* @access public
* @param string $item_id
* @return array of primary keys from table "institute"
*/
function getAdminRange($item_id) {
if (!$this->tree_data[$item_id]) {
return false;
}
$found = false;
$ret = false;
$next_link = $item_id;
while(($next_link = $this->getNextLink($next_link)) != 'root') {
if ($this->tree_data[$next_link]['studip_object'] == 'inst') {
$found[] = $next_link;
}
if ($this->tree_data[$next_link]['studip_object'] == 'fak') {
if (is_array($found) && count($found)) {
foreach($found as $f) {
if ($this->tree_data[$f]['fakultaets_id'] == $this->tree_data[$next_link]['studip_object_id']) {
$ret[] = $this->tree_data[$f]['studip_object_id'];
}
}
$ret[] = $this->tree_data[$next_link]['studip_object_id'];
} else {
$ret[] = $this->tree_data[$next_link]['studip_object_id'];
}
break;
}
$next_link = $this->tree_data[$next_link]['parent_id'];
}
if (!$ret){
$ret[] = $next_link;
}
return $ret;
}
/**
* returns the next item_id upwards the tree which is a Stud.IP object
*
* help function for getAdminRange()
*
* @access private
* @param string $item_id
* @return string
*/
function getNextLink($item_id){
if (!$this->tree_data[$item_id])
return false;
$ret_id = $item_id;
while (!$this->tree_data[$ret_id]['studip_object_id']){
$ret_id = $this->tree_data[$ret_id]['parent_id'];
}
return $ret_id;
}
function getSemIds($item_id,$ids_from_kids = false){
if (!$this->tree_data[$item_id])
return false;
if ($ids_from_kids){
$this->view->params[0] = $this->getKidsKids($item_id);
}
$this->view->params[0][] = $item_id;
$this->view->params[1] = (isset($this->sem_number)) ? " HAVING sem_number IN (" . join(",",$this->sem_number) .") OR (sem_number <= " . $this->sem_number[count($this->sem_number)-1] . " AND (sem_number_end >= " . $this->sem_number[count($this->sem_number)-1] . " OR sem_number_end = -1)) " : " ";
$ret = false;
$rs = $this->view->get_query("view:RANGE_TREE_GET_SEMIDS");
while($rs->next_record()){
$ret[] = $rs->f(0);
}
return $ret;
}
function getNumEntries($item_id, $num_entries_from_kids = false){
if (!$this->tree_data[$item_id])
return false;
if (!$this->entries_init_done) $this->initEntries();
return parent::getNumEntries($item_id, $num_entries_from_kids);
}
function InsertItem($item_id, $parent_id, $item_name, $priority,$studip_object,$studip_object_id){
$view = new DbView();
$view->params = [$item_id,$parent_id,$item_name,$priority,$studip_object,$studip_object_id];
$rs = $view->get_query("view:TREE_INS_ITEM");
return $rs->affected_rows();
}
function UpdateItem($item_name,$studip_object,$studip_object_id,$item_id){
$view = new DbView();
$view->params = [$item_name,$studip_object,$studip_object_id,$item_id];
$rs = $view->get_query("view:TREE_UPD_ITEM");
return $rs->affected_rows();
}
function DeleteItems($items_to_delete){
$view = new DbView();
$view->params[0] = (is_array($items_to_delete)) ? $items_to_delete : [$items_to_delete];
$view->auto_free_params = false;
$rs = $view->get_query("view:TREE_DEL_ITEM");
$deleted['items'] = $rs->affected_rows();
$rs = $view->get_query("view:CAT_DEL_RANGE");
$deleted['categories'] = $rs->affected_rows();
return $deleted;
}
}
?>
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