441 lines
13 KiB
PHP
441 lines
13 KiB
PHP
<?php
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/**
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* @package Joomla.Plugin
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* @subpackage Search.content
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*
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* @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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defined('_JEXEC') or die;
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/**
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* Content search plugin.
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*
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* @since 1.6
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*/
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class PlgSearchContent extends JPlugin
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{
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/**
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* Determine areas searchable by this plugin.
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*
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* @return array An array of search areas.
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*
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* @since 1.6
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*/
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public function onContentSearchAreas()
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{
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static $areas = array(
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'content' => 'JGLOBAL_ARTICLES'
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);
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return $areas;
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}
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/**
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* Search content (articles).
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* The SQL must return the following fields that are used in a common display
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* routine: href, title, section, created, text, browsernav.
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*
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* @param string $text Target search string.
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* @param string $phrase Matching option (possible values: exact|any|all). Default is "any".
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* @param string $ordering Ordering option (possible values: newest|oldest|popular|alpha|category). Default is "newest".
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* @param mixed $areas An array if the search it to be restricted to areas or null to search all areas.
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*
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* @return array Search results.
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*
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* @since 1.6
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*/
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public function onContentSearch($text, $phrase = '', $ordering = '', $areas = null)
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{
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$db = JFactory::getDbo();
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$serverType = $db->getServerType();
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$app = JFactory::getApplication();
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$user = JFactory::getUser();
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$groups = implode(',', $user->getAuthorisedViewLevels());
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$tag = JFactory::getLanguage()->getTag();
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JLoader::register('ContentHelperRoute', JPATH_SITE . '/components/com_content/helpers/route.php');
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JLoader::register('SearchHelper', JPATH_ADMINISTRATOR . '/components/com_search/helpers/search.php');
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$searchText = $text;
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if (is_array($areas) && !array_intersect($areas, array_keys($this->onContentSearchAreas())))
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{
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return array();
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}
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$sContent = $this->params->get('search_content', 1);
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$sArchived = $this->params->get('search_archived', 1);
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$limit = $this->params->def('search_limit', 50);
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$nullDate = $db->getNullDate();
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$date = JFactory::getDate();
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$now = $date->toSql();
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$text = trim($text);
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if ($text === '')
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{
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return array();
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}
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switch ($phrase)
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{
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case 'exact':
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$text = $db->quote('%' . $db->escape($text, true) . '%', false);
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$wheres2 = array();
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$wheres2[] = 'a.title LIKE ' . $text;
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$wheres2[] = 'a.introtext LIKE ' . $text;
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$wheres2[] = 'a.fulltext LIKE ' . $text;
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$wheres2[] = 'a.metakey LIKE ' . $text;
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$wheres2[] = 'a.metadesc LIKE ' . $text;
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$relevance[] = ' CASE WHEN ' . $wheres2[0] . ' THEN 5 ELSE 0 END ';
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// Join over Fields.
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$subQuery = $db->getQuery(true);
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$subQuery->select("cfv.item_id")
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->from("#__fields_values AS cfv")
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->join('LEFT', '#__fields AS f ON f.id = cfv.field_id')
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->where('(f.context IS NULL OR f.context = ' . $db->q('com_content.article') . ')')
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->where('(f.state IS NULL OR f.state = 1)')
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->where('(f.access IS NULL OR f.access IN (' . $groups . '))')
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->where('cfv.value LIKE ' . $text);
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// Filter by language.
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if ($app->isClient('site') && JLanguageMultilang::isEnabled())
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{
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$subQuery->where('(f.language IS NULL OR f.language in (' . $db->quote($tag) . ',' . $db->quote('*') . '))');
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}
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if ($serverType == "mysql")
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{
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/* This generates a dependent sub-query so do no use in MySQL prior to version 6.0 !
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* $wheres2[] = 'a.id IN( '. (string) $subQuery.')';
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*/
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$db->setQuery($subQuery);
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$fieldids = $db->loadColumn();
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if (count($fieldids))
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{
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$wheres2[] = 'a.id IN(' . implode(",", $fieldids) . ')';
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}
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}
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else
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{
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$wheres2[] = $subQuery->castAsChar('a.id') . ' IN( ' . (string) $subQuery . ')';
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}
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$where = '(' . implode(') OR (', $wheres2) . ')';
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break;
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case 'all':
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case 'any':
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default:
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$words = explode(' ', $text);
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$wheres = array();
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$cfwhere = array();
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foreach ($words as $word)
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{
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$word = $db->quote('%' . $db->escape($word, true) . '%', false);
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$wheres2 = array();
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$wheres2[] = 'LOWER(a.title) LIKE LOWER(' . $word . ')';
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$wheres2[] = 'LOWER(a.introtext) LIKE LOWER(' . $word . ')';
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$wheres2[] = 'LOWER(a.fulltext) LIKE LOWER(' . $word . ')';
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$wheres2[] = 'LOWER(a.metakey) LIKE LOWER(' . $word . ')';
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$wheres2[] = 'LOWER(a.metadesc) LIKE LOWER(' . $word . ')';
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$relevance[] = ' CASE WHEN ' . $wheres2[0] . ' THEN 5 ELSE 0 END ';
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if ($phrase === 'all')
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{
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// Join over Fields.
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$subQuery = $db->getQuery(true);
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$subQuery->select("cfv.item_id")
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->from("#__fields_values AS cfv")
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->join('LEFT', '#__fields AS f ON f.id = cfv.field_id')
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->where('(f.context IS NULL OR f.context = ' . $db->q('com_content.article') . ')')
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->where('(f.state IS NULL OR f.state = 1)')
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->where('(f.access IS NULL OR f.access IN (' . $groups . '))')
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->where('LOWER(cfv.value) LIKE LOWER(' . $word . ')');
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// Filter by language.
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if ($app->isClient('site') && JLanguageMultilang::isEnabled())
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{
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$subQuery->where('(f.language IS NULL OR f.language in (' . $db->quote($tag) . ',' . $db->quote('*') . '))');
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}
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if ($serverType == "mysql")
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{
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$db->setQuery($subQuery);
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$fieldids = $db->loadColumn();
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if (count($fieldids))
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{
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$wheres2[] = 'a.id IN(' . implode(",", $fieldids) . ')';
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}
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}
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else
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{
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$wheres2[] = $subQuery->castAsChar('a.id') . ' IN( ' . (string) $subQuery . ')';
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}
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}
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else
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{
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$cfwhere[] = 'LOWER(cfv.value) LIKE LOWER(' . $word . ')';
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}
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$wheres[] = implode(' OR ', $wheres2);
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}
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if ($phrase === 'any')
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{
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// Join over Fields.
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$subQuery = $db->getQuery(true);
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$subQuery->select("cfv.item_id")
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->from("#__fields_values AS cfv")
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->join('LEFT', '#__fields AS f ON f.id = cfv.field_id')
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->where('(f.context IS NULL OR f.context = ' . $db->q('com_content.article') . ')')
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->where('(f.state IS NULL OR f.state = 1)')
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->where('(f.access IS NULL OR f.access IN (' . $groups . '))')
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->where('(' . implode(($phrase === 'all' ? ') AND (' : ') OR ('), $cfwhere) . ')');
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// Filter by language.
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if ($app->isClient('site') && JLanguageMultilang::isEnabled())
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{
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$subQuery->where('(f.language IS NULL OR f.language in (' . $db->quote($tag) . ',' . $db->quote('*') . '))');
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}
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if ($serverType == "mysql")
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{
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$db->setQuery($subQuery);
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$fieldids = $db->loadColumn();
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if (count($fieldids))
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{
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$wheres[] = 'a.id IN(' . implode(",", $fieldids) . ')';
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}
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}
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else
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{
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$wheres[] = $subQuery->castAsChar('a.id') . ' IN( ' . (string) $subQuery . ')';
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}
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}
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$where = '(' . implode(($phrase === 'all' ? ') AND (' : ') OR ('), $wheres) . ')';
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break;
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}
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switch ($ordering)
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{
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case 'oldest':
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$order = 'a.created ASC';
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break;
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case 'popular':
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$order = 'a.hits DESC';
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break;
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case 'alpha':
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$order = 'a.title ASC';
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break;
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case 'category':
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$order = 'c.title ASC, a.title ASC';
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break;
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case 'newest':
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default:
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$order = 'a.created DESC';
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break;
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}
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$rows = array();
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$query = $db->getQuery(true);
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// Search articles.
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if ($sContent && $limit > 0)
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{
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$query->clear();
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// SQLSRV changes.
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$case_when = ' CASE WHEN ';
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$case_when .= $query->charLength('a.alias', '!=', '0');
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$case_when .= ' THEN ';
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$a_id = $query->castAsChar('a.id');
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$case_when .= $query->concatenate(array($a_id, 'a.alias'), ':');
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$case_when .= ' ELSE ';
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$case_when .= $a_id . ' END as slug';
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$case_when1 = ' CASE WHEN ';
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$case_when1 .= $query->charLength('c.alias', '!=', '0');
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$case_when1 .= ' THEN ';
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$c_id = $query->castAsChar('c.id');
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$case_when1 .= $query->concatenate(array($c_id, 'c.alias'), ':');
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$case_when1 .= ' ELSE ';
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$case_when1 .= $c_id . ' END as catslug';
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if (!empty($relevance))
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{
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$query->select(implode(' + ', $relevance) . ' AS relevance');
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$order = ' relevance DESC, ' . $order;
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}
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$query->select('a.title AS title, a.metadesc, a.metakey, a.created AS created, a.language, a.catid')
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->select($query->concatenate(array('a.introtext', 'a.fulltext')) . ' AS text')
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->select('c.title AS section, ' . $case_when . ',' . $case_when1 . ', ' . '\'2\' AS browsernav')
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->from('#__content AS a')
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->join('INNER', '#__categories AS c ON c.id=a.catid')
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->where(
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'(' . $where . ') AND a.state=1 AND c.published = 1 AND a.access IN (' . $groups . ') '
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. 'AND c.access IN (' . $groups . ')'
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. 'AND (a.publish_up = ' . $db->quote($nullDate) . ' OR a.publish_up <= ' . $db->quote($now) . ') '
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. 'AND (a.publish_down = ' . $db->quote($nullDate) . ' OR a.publish_down >= ' . $db->quote($now) . ')'
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)
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->group('a.id, a.title, a.metadesc, a.metakey, a.created, a.language, a.catid, a.introtext, a.fulltext, c.title, a.alias, c.alias, c.id')
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->order($order);
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// Filter by language.
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if ($app->isClient('site') && JLanguageMultilang::isEnabled())
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{
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$query->where('a.language in (' . $db->quote($tag) . ',' . $db->quote('*') . ')')
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->where('c.language in (' . $db->quote($tag) . ',' . $db->quote('*') . ')');
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}
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$db->setQuery($query, 0, $limit);
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try
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{
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$list = $db->loadObjectList();
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}
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catch (RuntimeException $e)
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{
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$list = array();
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JFactory::getApplication()->enqueueMessage(JText::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
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}
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$limit -= count($list);
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if (isset($list))
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{
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foreach ($list as $key => $item)
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{
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$list[$key]->href = ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language);
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}
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}
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$rows[] = $list;
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}
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// Search archived content.
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if ($sArchived && $limit > 0)
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{
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$query->clear();
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// SQLSRV changes.
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$case_when = ' CASE WHEN ';
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$case_when .= $query->charLength('a.alias', '!=', '0');
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$case_when .= ' THEN ';
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$a_id = $query->castAsChar('a.id');
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$case_when .= $query->concatenate(array($a_id, 'a.alias'), ':');
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$case_when .= ' ELSE ';
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$case_when .= $a_id . ' END as slug';
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$case_when1 = ' CASE WHEN ';
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$case_when1 .= $query->charLength('c.alias', '!=', '0');
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$case_when1 .= ' THEN ';
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$c_id = $query->castAsChar('c.id');
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$case_when1 .= $query->concatenate(array($c_id, 'c.alias'), ':');
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$case_when1 .= ' ELSE ';
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$case_when1 .= $c_id . ' END as catslug';
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if (!empty($relevance))
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{
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$query->select(implode(' + ', $relevance) . ' AS relevance');
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$order = ' relevance DESC, ' . $order;
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}
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$query->select('a.title AS title, a.metadesc, a.metakey, a.created AS created, a.language, a.catid')
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->select($query->concatenate(array('a.introtext', 'a.fulltext')) . ' AS text')
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->select('c.title AS section, ' . $case_when . ',' . $case_when1 . ', ' . '\'2\' AS browsernav')
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->from('#__content AS a')
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->join('INNER', '#__categories AS c ON c.id=a.catid AND c.access IN (' . $groups . ')')
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->where(
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'(' . $where . ') AND a.state = 2 AND c.published = 1 AND a.access IN (' . $groups
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. ') AND c.access IN (' . $groups . ') '
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. 'AND (a.publish_up = ' . $db->quote($nullDate) . ' OR a.publish_up <= ' . $db->quote($now) . ') '
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. 'AND (a.publish_down = ' . $db->quote($nullDate) . ' OR a.publish_down >= ' . $db->quote($now) . ')'
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)
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->order($order);
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// Join over Fields is no longer needed
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// Filter by language.
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if ($app->isClient('site') && JLanguageMultilang::isEnabled())
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{
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$query->where('a.language in (' . $db->quote($tag) . ',' . $db->quote('*') . ')')
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->where('c.language in (' . $db->quote($tag) . ',' . $db->quote('*') . ')');
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}
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$db->setQuery($query, 0, $limit);
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try
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{
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$list3 = $db->loadObjectList();
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}
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catch (RuntimeException $e)
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{
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$list3 = array();
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JFactory::getApplication()->enqueueMessage(JText::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
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}
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if (isset($list3))
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{
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foreach ($list3 as $key => $item)
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{
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$list3[$key]->href = ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language);
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}
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}
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$rows[] = $list3;
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}
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$results = array();
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if (count($rows))
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{
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foreach ($rows as $row)
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{
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$new_row = array();
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foreach ($row as $article)
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{
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// Not efficient to get these ONE article at a TIME
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// Lookup field values so they can be checked, GROUP_CONCAT would work in above queries, but isn't supported by non-MySQL DBs.
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$query = $db->getQuery(true);
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$query->select('fv.value')
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->from('#__fields_values as fv')
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->join('left', '#__fields as f on fv.field_id = f.id')
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->where('f.context = ' . $db->quote('com_content.article'))
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->where('fv.item_id = ' . $db->quote((int) $article->slug));
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$db->setQuery($query);
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$article->jcfields = implode(',', $db->loadColumn());
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if (SearchHelper::checkNoHtml($article, $searchText, array('text', 'title', 'jcfields', 'metadesc', 'metakey')))
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{
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$new_row[] = $article;
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}
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}
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$results = array_merge($results, (array) $new_row);
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}
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}
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return $results;
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}
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}
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