Current File : /home/admin/public_html/old/happy2/administrator/components/com_finder/helpers/indexer/taxonomy.php
<?php
/**
* @package Joomla.Administrator
* @subpackage com_finder
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('_JEXEC') or die;
/**
* Stemmer base class for the Finder indexer package.
*
* @package Joomla.Administrator
* @subpackage com_finder
* @since 2.5
*/
class FinderIndexerTaxonomy
{
/**
* An internal cache of taxonomy branch data.
*
* @var array
* @since 2.5
*/
public static $branches = array();
/**
* An internal cache of taxonomy node data.
*
* @var array
* @since 2.5
*/
public static $nodes = array();
/**
* Method to add a branch to the taxonomy tree.
*
* @param string $title The title of the branch.
* @param integer $state The published state of the branch. [optional]
* @param integer $access The access state of the branch. [optional]
*
* @return integer The id of the branch.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function addBranch($title, $state = 1, $access = 1)
{
// Check to see if the branch is in the cache.
if (isset(self::$branches[$title]))
{
return self::$branches[$title]->id;
}
// Check to see if the branch is in the table.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from($db->quoteName('#__finder_taxonomy'));
$query->where($db->quoteName('parent_id') . ' = 1');
$query->where($db->quoteName('title') . ' = ' . $db->quote($title));
$db->setQuery($query);
// Get the result.
$result = $db->loadObject();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
// Check if the database matches the input data.
if (!empty($result) && $result->state == $state && $result->access == $access)
{
// The data matches, add the item to the cache.
self::$branches[$title] = $result;
return self::$branches[$title]->id;
}
// The database did not match the input. This could be because the
// state has changed or because the branch does not exist. Let's figure
// out which case is true and deal with it.
$branch = new JObject;
if (empty($result))
{
// Prepare the branch object.
$branch->parent_id = 1;
$branch->title = $title;
$branch->state = (int) $state;
$branch->access = (int) $access;
}
else
{
// Prepare the branch object.
$branch->id = (int) $result->id;
$branch->parent_id = (int) $result->parent_id;
$branch->title = $result->title;
$branch->state = (int) $result->title;
$branch->access = (int) $result->access;
$branch->ordering = (int) $result->ordering;
}
// Store the branch.
self::storeNode($branch);
// Add the branch to the cache.
self::$branches[$title] = $branch;
return self::$branches[$title]->id;
}
/**
* Method to add a node to the taxonomy tree.
*
* @param string $branch The title of the branch to store the node in.
* @param string $title The title of the node.
* @param integer $state The published state of the node. [optional]
* @param integer $access The access state of the node. [optional]
*
* @return integer The id of the node.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function addNode($branch, $title, $state = 1, $access = 1)
{
// Check to see if the node is in the cache.
if (isset(self::$nodes[$branch][$title]))
{
return self::$nodes[$branch][$title]->id;
}
// Get the branch id, inserted it if it does not exist.
$branchId = self::addBranch($branch);
// Check to see if the node is in the table.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('*');
$query->from($db->quoteName('#__finder_taxonomy'));
$query->where($db->quoteName('parent_id') . ' = ' . $db->quote($branchId));
$query->where($db->quoteName('title') . ' = ' . $db->quote($title));
$db->setQuery($query);
// Get the result.
$result = $db->loadObject();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
// Check if the database matches the input data.
if (!empty($result) && $result->state == $state && $result->access == $access)
{
// The data matches, add the item to the cache.
self::$nodes[$branch][$title] = $result;
return self::$nodes[$branch][$title]->id;
}
// The database did not match the input. This could be because the
// state has changed or because the node does not exist. Let's figure
// out which case is true and deal with it.
$node = new JObject;
if (empty($result))
{
// Prepare the node object.
$node->parent_id = (int) $branchId;
$node->title = $title;
$node->state = (int) $state;
$node->access = (int) $access;
}
else
{
// Prepare the node object.
$node->id = (int) $result->id;
$node->parent_id = (int) $result->parent_id;
$node->title = $result->title;
$node->state = (int) $result->title;
$node->access = (int) $result->access;
$node->ordering = (int) $result->ordering;
}
// Store the node.
self::storeNode($node);
// Add the node to the cache.
self::$nodes[$branch][$title] = $node;
return self::$nodes[$branch][$title]->id;
}
/**
* Method to add a map entry between a link and a taxonomy node.
*
* @param integer $linkId The link to map to.
* @param integer $nodeId The node to map to.
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function addMap($linkId, $nodeId)
{
// Insert the map.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select($db->quoteName('link_id'));
$query->from($db->quoteName('#__finder_taxonomy_map'));
$query->where($db->quoteName('link_id') . ' = ' . (int)$linkId);
$query->where($db->quoteName('node_id') . ' = ' . (int)$nodeId);
$db->setQuery($query);
$db->query();
$id = (int) $db->loadResult();
$map = new JObject();
$map->link_id = (int) $linkId;
$map->node_id = (int) $nodeId;
if ($id) {
$db->updateObject('#__finder_taxonomy_map', $map);
}
else {
$db->insertObject('#__finder_taxonomy_map', $map);
}
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return true;
}
/**
* Method to get the title of all taxonomy branches.
*
* @return array An array of branch titles.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function getBranchTitles()
{
$db = JFactory::getDBO();
// Set user variables
$user = JFactory::getUser();
$groups = implode(',', $user->getAuthorisedViewLevels());
// Create a query to get the taxonomy branch titles.
$query = $db->getQuery(true);
$query->select($db->quoteName('title'));
$query->from($db->quoteName('#__finder_taxonomy'));
$query->where($db->quoteName('parent_id') . ' = 1');
$query->where($db->quoteName('state') . ' = 1');
$query->where($db->quoteName('access') . ' IN (' . $groups . ')');
// Get the branch titles.
$db->setQuery($query);
$results = $db->loadColumn();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return $results;
}
/**
* Method to find a taxonomy node in a branch.
*
* @param string $branch The branch to search.
* @param string $title The title of the node.
*
* @return mixed Integer id on success, null on no match.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function getNodeByTitle($branch, $title)
{
$db = JFactory::getDBO();
// Set user variables
$user = JFactory::getUser();
$groups = implode(',', $user->getAuthorisedViewLevels());
// Create a query to get the node.
$query = $db->getQuery(true);
$query->select('t1.*');
$query->from($db->quoteName('#__finder_taxonomy') . ' AS t1');
$query->join('INNER', $db->quoteName('#__finder_taxonomy') . ' AS t2 ON t2.id = t1.parent_id');
$query->where('t1.' . $db->quoteName('access') . ' IN (' . $groups . ')');
$query->where('t1.' . $db->quoteName('state') . ' = 1');
$query->where('t1.' . $db->quoteName('title') . ' LIKE "' . $db->escape($title) . '%"');
$query->where('t2.' . $db->quoteName('access') . ' IN (' . $groups . ')');
$query->where('t2.' . $db->quoteName('state') . ' = 1');
$query->where('t2.' . $db->quoteName('title') . ' = ' . $db->quote($branch));
// Get the node.
$db->setQuery($query, 0, 1);
$result = $db->loadObject();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return $result;
}
/**
* Method to remove map entries for a link.
*
* @param integer $linkId The link to remove.
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function removeMaps($linkId)
{
// Delete the maps.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->delete();
$query->from($db->quoteName('#__finder_taxonomy_map'));
$query->where($db->quoteName('link_id') . ' = ' . (int) $linkId);
$db->setQuery($query);
$db->query();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return true;
}
/**
* Method to remove orphaned taxonomy nodes and branches.
*
* @return integer The number of deleted rows.
*
* @since 2.5
* @throws Exception on database error.
*/
public static function removeOrphanNodes()
{
// Delete all orphaned nodes.
$db = JFactory::getDBO();
/*$query = $db->getQuery(true);
$query->delete();
$query->from($db->quoteName('#__finder_taxonomy') . ' AS t');
$query->join('LEFT', $db->quoteName('#__finder_taxonomy_map') . ' AS m ON m.node_id = t.id');
$query->where('t.' . $db->quoteName('parent_id') . ' > 1');
$query->where('m.' . $db->quoteName('link_id') . ' IS NULL');*/
//@TODO: Query does not work with JDatabaseQuery, does not support DELETE t.*, must be DELETE FROM ...
$query = 'DELETE t.*' .
' FROM ' . $db->quoteName('#__finder_taxonomy') . ' AS t' .
' LEFT JOIN ' . $db->quoteName('#__finder_taxonomy_map') . ' AS m ON m.node_id = t.id' .
' WHERE t.' . $db->quoteName('parent_id') . ' > 1' .
' AND m.' . $db->quoteName('link_id') . ' IS NULL';
$db->setQuery($query);
$db->query();
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return $db->getAffectedRows();
}
/**
* Method to store a node to the database. This method will accept either a branch or a node.
*
* @param object $item The item to store.
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
protected static function storeNode($item)
{
$db = JFactory::getDBO();
// Check if we are updating or inserting the item.
if (empty($item->id))
{
// Insert the item.
$db->insertObject('#__finder_taxonomy', $item, 'id');
}
else
{
// Update the item.
$db->updateObject('#__finder_taxonomy', $item, 'id');
}
// Check for a database error.
if ($db->getErrorNum())
{
// Throw database error exception.
throw new Exception($db->getErrorMsg(), 500);
}
return true;
}
}