242 lines
6.2 KiB
PHP
242 lines
6.2 KiB
PHP
<?php
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/**
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* @package Joomla.Platform
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* @subpackage Table
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Usergroup table class.
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*
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* @package Joomla.Platform
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* @subpackage Table
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* @since 11.1
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*/
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class JTableUsergroup extends JTable
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{
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/**
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* Constructor
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*
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* @param JDatabaseDriver $db Database driver object.
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*
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* @since 11.1
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*/
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public function __construct($db)
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{
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parent::__construct('#__usergroups', 'id', $db);
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}
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/**
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* Method to check the current record to save
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*
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* @return boolean True on success
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*
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* @since 11.1
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*/
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public function check()
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{
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// Validate the title.
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if ((trim($this->title)) == '')
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{
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$this->setError(JText::_('JLIB_DATABASE_ERROR_USERGROUP_TITLE'));
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return false;
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}
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// Check for a duplicate parent_id, title.
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// There is a unique index on the (parent_id, title) field in the table.
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$db = $this->_db;
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$query = $db->getQuery(true)
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->select('COUNT(title)')
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->from($this->_tbl)
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->where('title = ' . $db->quote(trim($this->title)))
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->where('parent_id = ' . (int) $this->parent_id)
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->where('id <> ' . (int) $this->id);
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$db->setQuery($query);
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if ($db->loadResult() > 0)
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{
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$this->setError(JText::_('JLIB_DATABASE_ERROR_USERGROUP_TITLE_EXISTS'));
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return false;
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}
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return true;
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}
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/**
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* Method to recursively rebuild the nested set tree.
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*
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* @param integer $parent_id The root of the tree to rebuild.
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* @param integer $left The left id to start with in building the tree.
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*
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* @return boolean True on success
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*
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* @since 11.1
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*/
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public function rebuild($parent_id = 0, $left = 0)
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{
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// Get the database object
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$db = $this->_db;
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// Get all children of this node
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$db->setQuery('SELECT id FROM ' . $this->_tbl . ' WHERE parent_id=' . (int) $parent_id . ' ORDER BY parent_id, title');
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$children = $db->loadColumn();
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// The right value of this node is the left value + 1
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$right = $left + 1;
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// Execute this function recursively over all children
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for ($i = 0, $n = count($children); $i < $n; $i++)
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{
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// $right is the current right value, which is incremented on recursion return
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$right = $this->rebuild($children[$i], $right);
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// If there is an update failure, return false to break out of the recursion
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if ($right === false)
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{
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return false;
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}
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}
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// We've got the left value, and now that we've processed
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// the children of this node we also know the right value
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$db->setQuery('UPDATE ' . $this->_tbl . ' SET lft=' . (int) $left . ', rgt=' . (int) $right . ' WHERE id=' . (int) $parent_id);
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// If there is an update failure, return false to break out of the recursion
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if (!$db->execute())
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{
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return false;
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}
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// Return the right value of this node + 1
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return $right + 1;
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}
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/**
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* Inserts a new row if id is zero or updates an existing row in the database table
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*
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* @param boolean $updateNulls If false, null object variables are not updated
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*
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* @return boolean True if successful, false otherwise and an internal error message is set
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*
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* @since 11.1
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*/
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public function store($updateNulls = false)
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{
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if ($result = parent::store($updateNulls))
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{
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// Rebuild the nested set tree.
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$this->rebuild();
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}
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return $result;
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}
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/**
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* Delete this object and its dependencies
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*
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* @param integer $oid The primary key of the user group to delete.
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*
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* @return mixed Boolean or Exception.
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*
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* @since 11.1
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* @throws RuntimeException on database error.
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* @throws UnexpectedValueException on data error.
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*/
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public function delete($oid = null)
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{
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if ($oid)
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{
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$this->load($oid);
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}
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if ($this->id == 0)
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{
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throw new UnexpectedValueException('Global Category not found');
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}
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if ($this->parent_id == 0)
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{
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throw new UnexpectedValueException('Root categories cannot be deleted.');
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}
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if ($this->lft == 0 || $this->rgt == 0)
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{
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throw new UnexpectedValueException('Left-Right data inconsistency. Cannot delete usergroup.');
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}
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$db = $this->_db;
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// Select the usergroup ID and its children
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$query = $db->getQuery(true)
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->select($db->quoteName('c.id'))
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->from($db->quoteName($this->_tbl) . 'AS c')
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->where($db->quoteName('c.lft') . ' >= ' . (int) $this->lft)
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->where($db->quoteName('c.rgt') . ' <= ' . (int) $this->rgt);
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$db->setQuery($query);
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$ids = $db->loadColumn();
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if (empty($ids))
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{
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throw new UnexpectedValueException('Left-Right data inconsistency. Cannot delete usergroup.');
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}
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// Delete the category dependencies
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// @todo Remove all related threads, posts and subscriptions
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// Delete the usergroup and its children
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$query->clear()
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->delete($db->quoteName($this->_tbl))
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->where($db->quoteName('id') . ' IN (' . implode(',', $ids) . ')');
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$db->setQuery($query);
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$db->execute();
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// Delete the usergroup in view levels
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$replace = array();
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foreach ($ids as $id)
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{
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$replace[] = ',' . $db->quote("[$id,") . ',' . $db->quote("[") . ')';
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$replace[] = ',' . $db->quote(",$id,") . ',' . $db->quote(",") . ')';
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$replace[] = ',' . $db->quote(",$id]") . ',' . $db->quote("]") . ')';
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$replace[] = ',' . $db->quote("[$id]") . ',' . $db->quote("[]") . ')';
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}
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// SQLSsrv change. Alternative for regexp
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$query->clear()
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->select('id, rules')
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->from('#__viewlevels');
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$db->setQuery($query);
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$rules = $db->loadObjectList();
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$match_ids = array();
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foreach ($rules as $rule)
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{
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foreach ($ids as $id)
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{
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if (strstr($rule->rules, '[' . $id) || strstr($rule->rules, ',' . $id) || strstr($rule->rules, $id . ']'))
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{
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$match_ids[] = $rule->id;
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}
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}
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}
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if (!empty($match_ids))
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{
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$query->clear()
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->set('rules=' . str_repeat('replace(', 4 * count($ids)) . 'rules' . implode('', $replace))
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->update('#__viewlevels')
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->where('id IN (' . implode(',', $match_ids) . ')');
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$db->setQuery($query);
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$db->execute();
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}
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// Delete the user to usergroup mappings for the group(s) from the database.
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$query->clear()
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->delete($db->quoteName('#__user_usergroup_map'))
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->where($db->quoteName('group_id') . ' IN (' . implode(',', $ids) . ')');
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$db->setQuery($query);
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$db->execute();
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return true;
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}
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}
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