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AbstractCategoryItemRouter.php
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Mon, Aug 4, 12:24 AM

AbstractCategoryItemRouter.php
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<?php
/**
* @version $Id: AbstractCategoryItemRouter.php 16252 2015-09-27 06:34:45Z alex $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2015 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/
defined('FULL_PATH') or die('restricted access!');
abstract class AbstractCategoryItemRouter extends AbstractRouter
{
/**
* Builds url part.
*
* @return boolean Return true to continue to next router; return false not to rewrite given prefix.
*/
protected function build()
{
static $default_per_page = array();
$ret = '';
$build_params = $this->extractBuildParams();
if ( $build_params === false ) {
return '';
}
$this->keepEvent();
list ($prefix) = explode('.', $this->buildPrefix);
if ( !array_key_exists($prefix, $default_per_page) ) {
$list_helper = $this->Application->recallObject('ListHelper');
/* @var $list_helper ListHelper */
$default_per_page[$prefix] = $list_helper->getDefaultPerPage($prefix);
}
if ( $build_params[$this->buildPrefix . '_id'] ) {
$category_id = $this->getBuildParam('m_cat_id');
// If template is also item template of category, then remove template.
$template = $this->getBuildParam('t', false);
$item_template = $this->getUrlProcessor()->GetItemTemplate($category_id, $prefix);
if ( $template == $item_template || strtolower($template) == '__default__' ) {
// Given template is also default template for this category item or '__default__' given.
$this->setBuildParam('pass_template', false);
}
// Get item's filename.
if ( $prefix == 'bb' ) {
$ret .= 'bb_' . $build_params[$this->buildPrefix . '_id'] . '/';
}
else {
$filename = $this->getFilename($prefix, $build_params[$this->buildPrefix . '_id'], $category_id);
if ( $filename !== false ) {
$ret .= $filename . '/';
}
}
}
else {
if ( $build_params[$this->buildPrefix . '_Page'] == 1 ) {
// When printing category items and we are on the 1st page -> there is no information about
// category item prefix and $params['pass_category'] will not be added automatically.
$this->setBuildParam('pass_category', true);
}
elseif ( $build_params[$this->buildPrefix . '_Page'] > 1 ) {
$this->setBuildParam('page', $build_params[$this->buildPrefix . '_Page']);
}
$per_page = $build_params[$this->buildPrefix . '_PerPage'];
if ( $per_page && ($per_page != $default_per_page[$prefix]) ) {
$this->setBuildParam('per_page', $build_params[$this->buildPrefix . '_PerPage']);
}
}
return mb_strtolower(rtrim($ret, '/'));
}
/**
* Parses url part.
*
* @param array $url_parts Url parts to parse.
* @param array $params Parameters, that are used for url building or created during url parsing.
*
* @return boolean Return true to continue to next router; return false to stop processing at this router.
*/
public function parse(array &$url_parts, array &$params)
{
$module_prefix = $this->parseCategoryItemUrl($url_parts, $params);
if ( $module_prefix !== false ) {
$params['pass'][] = $module_prefix;
$this->getUrlProcessor()->setModulePrefix($module_prefix);
}
return true;
}
/**
* Returns item's filename that corresponds id passed. If possible, then get it from cache.
*
* @param string $prefix Prefix.
* @param integer $id Id.
* @param integer $category_id Category Id.
*
* @return string
*/
protected function getFilename($prefix, $id, $category_id = null)
{
$category_id = isset($category_id) ? $category_id : $this->Application->GetVar('m_cat_id');
$serial_name = $this->Application->incrementCacheSerial($prefix, $id, false);
$cache_key = 'filenames[%' . $serial_name . '%]:' . (int)$category_id;
$filename = $this->Application->getCache($cache_key);
if ( $filename === false ) {
$this->Conn->nextQueryCachable = true;
$config = $this->Application->getUnitConfig($prefix);
$sql = 'SELECT ResourceId
FROM ' . $config->getTableName() . '
WHERE ' . $config->getIDField() . ' = ' . $this->Conn->qstr($id);
$resource_id = $this->Conn->GetOne($sql);
$this->Conn->nextQueryCachable = true;
$sql = 'SELECT Filename
FROM ' . TABLE_PREFIX . 'CategoryItems
WHERE (ItemResourceId = ' . $resource_id . ') AND (CategoryId = ' . (int)$category_id . ')';
$filename = $this->Conn->GetOne($sql);
if ( $filename !== false ) {
$this->Application->setCache($cache_key, $filename);
}
}
return $filename;
}
/**
* Sets template and id, corresponding to category item given in url
*
* @param array $url_parts Url parts.
* @param array $params Params.
*
* @return boolean|string
*/
protected function parseCategoryItemUrl(array &$url_parts, array &$params)
{
if ( !$url_parts ) {
return false;
}
$item_filename = end($url_parts);
if ( is_numeric($item_filename) ) {
// This page, don't process here.
return false;
}
if ( $this->buildPrefix == 'bb' && preg_match('/^bb_([\d]+)/', $item_filename, $regs) ) {
// Process topics separately, because they don't use item filenames.
array_pop($url_parts);
$this->partParsed($item_filename, 'rtl');
return $this->parseTopicUrl($regs[1], $params);
}
$cat_item = $this->findCategoryItem((int)$params['m_cat_id'], $item_filename);
if ( $cat_item !== false ) {
// Item found.
$module_prefix = $cat_item['ItemPrefix'];
$item_template = $this->getUrlProcessor()->GetItemTemplate($cat_item, $module_prefix, $params['m_theme']);
// Converting ResourceId to corresponding Item id.
$module_config = $this->Application->getUnitConfig($module_prefix);
$sql = 'SELECT ' . $module_config->getIDField() . '
FROM ' . $module_config->getTableName() . '
WHERE ResourceId = ' . $cat_item['ItemResourceId'];
$item_id = $this->Conn->GetOne($sql);
if ( $item_id ) {
array_pop($url_parts);
$this->partParsed($item_filename, 'rtl');
if ( $item_template ) {
// When template is found in category -> set it.
$params['t'] = $item_template;
}
// We have category item id.
$params[$module_prefix . '_id'] = $item_id;
return $module_prefix;
}
}
return false;
}
/**
* Set's template and topic id corresponding to topic given in url
*
* @param integer $topic_id Topic ID.
* @param array $params Params.
*
* @return string
*/
protected function parseTopicUrl($topic_id, array &$params)
{
$sql = 'SELECT c.ParentPath, c.CategoryId
FROM ' . TABLE_PREFIX . 'Categories AS c
WHERE c.CategoryId = ' . (int)$params['m_cat_id'];
$cat_item = $this->Conn->GetRow($sql);
$item_template = $this->getUrlProcessor()->GetItemTemplate($cat_item, 'bb', $params['m_theme']);
if ( $item_template ) {
$params['t'] = $item_template;
}
$params['bb_id'] = $topic_id;
return 'bb';
}
/**
* Locating the item in CategoryItems by filename to detect its ItemPrefix and its category ParentPath.
*
* @param integer $category_id Category.
* @param string $filename Filename.
*
* @return string
*/
protected function findCategoryItem($category_id, $filename)
{
static $cache = array();
$cache_key = $category_id . ':' . $filename;
if ( !isset($cache[$cache_key]) ) {
$sql = 'SELECT ci.ItemResourceId, ci.ItemPrefix, c.ParentPath, ci.CategoryId
FROM ' . TABLE_PREFIX . 'CategoryItems AS ci
LEFT JOIN ' . TABLE_PREFIX . 'Categories AS c ON c.CategoryId = ci.CategoryId
WHERE (ci.CategoryId = ' . $category_id . ') AND (ci.Filename = ' . $this->Conn->qstr($filename) . ')';
$cache[$cache_key] = $this->Conn->GetRow($sql);
}
$category_item = $cache[$cache_key];
return $category_item && $category_item['ItemPrefix'] == $this->buildPrefix ? $category_item : false;
}
}

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