我想让 joomla 自动重新索引某个类别（和子类别）中的所有文章，而不索引其余的。我不是在寻找 cron 工作。当我点击索引按钮时，我希望 joomla 这样做。
换句话说，不属于该特定类别或其子子类别的所有文章不应被编入索引，因此不会出现在搜索结果中。
编辑（更多信息）：这是针对我知道类别 ID 的特定网站。我可能还应该补充一点，它是一个双语网站，搜索模块在同一页面上出现并为每种语言编制了两次索引。即它索引并出现在英语“博客”页面和德语“博客”页面上。
这是可能的还是我需要手动删除我不想显示的索引文件？
编辑：发现工具不起作用，这里是 xml 文件来尝试找出原因。
<?xml version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin" group="finder" method="upgrade">
<name>plg_finder_content</name>
<author>Joomla! Project</author>
<creationDate>August 2011</creationDate>
<copyright>(C) 2005 - 2014 Open Source Matters. All rights reserved.</copyright>
<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
<authorEmail>admin@joomla.org</authorEmail>
<authorUrl>www.joomla.org</authorUrl>
<version>3.0.0</version>
<description>PLG_FINDER_CONTENT_XML_DESCRIPTION</description>
<scriptfile>script.php</scriptfile>
<files>
<file plugin="content">article_selectedcategories.php</file>
<filename>index.html</filename>
</files>
<languages>
<language tag="en-GB">language/en-GB/en-GB.plg_finder_content.ini</language>
<language tag="en-GB">language/en-GB/en-GB.plg_finder_content.sys.ini</language>
</languages>
</extension>
编辑来自 php 的代码，以找出为什么它索引所有内容而不仅仅是类别 31。
<?php
/**
* @package Joomla.Plugin
* @subpackage Finder.Content
*
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_BASE') or die;
require_once JPATH_ADMINISTRATOR . '/components/com_finder/helpers/indexer/adapter.php';
/**
* Smart Search adapter for com_content.
*
* @package Joomla.Plugin
* @subpackage Finder.Content
* @since 2.5
*/
class PlgFinderContent extends FinderIndexerAdapter
{
/**
* The plugin identifier.
*
* @var string
* @since 2.5
*/
protected $context = 'Content';
/**
* The extension name.
*
* @var string
* @since 2.5
*/
protected $extension = 'com_content';
/**
* The sublayout to use when rendering the results.
*
* @var string
* @since 2.5
*/
protected $layout = 'article';
/**
* The type of content that the adapter indexes.
*
* @var string
* @since 2.5
*/
protected $type_title = 'Article';
/**
* The table name.
*
* @var string
* @since 2.5
*/
protected $table = '#__content';
/**
* Load the language file on instantiation.
*
* @var boolean
* @since 3.1
*/
protected $autoloadLanguage = true;
/**
* Method to update the item link information when the item category is
* changed. This is fired when the item category is published or unpublished
* from the list view.
*
* @param string $extension The extension whose category has been updated.
* @param array $pks A list of primary key ids of the content that has changed state.
* @param integer $value The value of the state that the content has been changed to.
*
* @return void
*
* @since 2.5
*/
public function onFinderCategoryChangeState($extension, $pks, $value)
{
// Make sure we're handling com_content categories.
if ($extension == 'com_content')
{
$this->categoryStateChange($pks, $value);
}
}
/**
* Method to remove the link information for items that have been deleted.
*
* @param string $context The context of the action being performed.
* @param JTable $table A JTable object containing the record to be deleted
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public function onFinderAfterDelete($context, $table)
{
if ($context == 'com_content.article')
{
$id = $table->id;
}
elseif ($context == 'com_finder.index')
{
$id = $table->link_id;
}
else
{
return true;
}
// Remove item from the index.
return $this->remove($id);
}
/**
* Smart Search after save content method.
* Reindexes the link information for an article that has been saved.
* It also makes adjustments if the access level of an item or the
* category to which it belongs has changed.
*
* @param string $context The context of the content passed to the plugin.
* @param JTable $row A JTable object.
* @param boolean $isNew True if the content has just been created.
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public function onFinderAfterSave($context, $row, $isNew)
{
// We only want to handle articles here.
if ($context == 'com_content.article' || $context == 'com_content.form')
{
// Check if the access levels are different.
if (!$isNew && $this->old_access != $row->access)
{
// Process the change.
$this->itemAccessChange($row);
}
// Reindex the item.
$this->reindex($row->id);
}
// Check for access changes in the category.
if ($context == 'com_categories.category')
{
// Check if the access levels are different.
if (!$isNew && $this->old_cataccess != $row->access)
{
$this->categoryAccessChange($row);
}
}
return true;
}
/**
* Smart Search before content save method.
* This event is fired before the data is actually saved.
*
* @param string $context The context of the content passed to the plugin.
* @param JTable $row A JTable object.
* @param boolean $isNew If the content is just about to be created.
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public function onFinderBeforeSave($context, $row, $isNew)
{
// We only want to handle articles here.
if ($context == 'com_content.article' || $context == 'com_content.form')
{
// Query the database for the old access level if the item isn't new.
if (!$isNew)
{
$this->checkItemAccess($row);
}
}
// Check for access levels from the category.
if ($context == 'com_categories.category')
{
// Query the database for the old access level if the item isn't new.
if (!$isNew)
{
$this->checkCategoryAccess($row);
}
}
return true;
}
/**
* Method to update the link information for items that have been changed
* from outside the edit screen. This is fired when the item is published,
* unpublished, archived, or unarchived from the list view.
*
* @param string $context The context for the content passed to the plugin.
* @param array $pks An array of primary key ids of the content that has changed state.
* @param integer $value The value of the state that the content has been changed to.
*
* @return void
*
* @since 2.5
*/
public function onFinderChangeState($context, $pks, $value)
{
// We only want to handle articles here.
if ($context == 'com_content.article' || $context == 'com_content.form')
{
$this->itemStateChange($pks, $value);
}
// Handle when the plugin is disabled.
if ($context == 'com_plugins.plugin' && $value === 0)
{
$this->pluginDisable($pks);
}
}
/**
* Method to index an item. The item must be a FinderIndexerResult object.
*
* @param FinderIndexerResult $item The item to index as an FinderIndexerResult object.
* @param string $format The item format. Not used.
*
* @return void
*
* @since 2.5
* @throws Exception on database error.
*/
protected function index(FinderIndexerResult $item, $format = 'html')
{
$item->setLanguage();
// Check if the extension is enabled.
if (JComponentHelper::isEnabled($this->extension) == false)
{
return;
}
// Initialise the item parameters.
$registry = new JRegistry;
$registry->loadString($item->params);
$item->params = JComponentHelper::getParams('com_content', true);
$item->params->merge($registry);
$registry = new JRegistry;
$registry->loadString($item->metadata);
$item->metadata = $registry;
// Trigger the onContentPrepare event.
$item->summary = FinderIndexerHelper::prepareContent($item->summary, $item->params);
$item->body = FinderIndexerHelper::prepareContent($item->body, $item->params);
// Build the necessary route and path information.
$item->url = $this->getURL($item->id, $this->extension, $this->layout);
$item->route = ContentHelperRoute::getArticleRoute($item->slug, $item->catslug, $item->language);
$item->path = FinderIndexerHelper::getContentPath($item->route);
// Get the menu title if it exists.
$title = $this->getItemMenuTitle($item->url);
// Adjust the title if necessary.
if (!empty($title) && $this->params->get('use_menu_title', true))
{
$item->title = $title;
}
// Add the meta-author.
$item->metaauthor = $item->metadata->get('author');
// Add the meta-data processing instructions.
$item->addInstruction(FinderIndexer::META_CONTEXT, 'metakey');
$item->addInstruction(FinderIndexer::META_CONTEXT, 'metadesc');
$item->addInstruction(FinderIndexer::META_CONTEXT, 'metaauthor');
$item->addInstruction(FinderIndexer::META_CONTEXT, 'author');
$item->addInstruction(FinderIndexer::META_CONTEXT, 'created_by_alias');
// Translate the state. Articles should only be published if the category is published.
$item->state = $this->translateState($item->state, $item->cat_state);
// Add the type taxonomy data.
$item->addTaxonomy('Type', 'Article');
// Add the author taxonomy data.
if (!empty($item->author) || !empty($item->created_by_alias))
{
$item->addTaxonomy('Author', !empty($item->created_by_alias) ? $item->created_by_alias : $item->author);
}
// Add the category taxonomy data.
$item->addTaxonomy('Category', $item->category, $item->cat_state, $item->cat_access);
// Add the language taxonomy data.
$item->addTaxonomy('Language', $item->language);
// Get content extras.
FinderIndexerHelper::getContentExtras($item);
// Index the item.
$this->indexer->index($item);
}
/**
* Method to setup the indexer to be run.
*
* @return boolean True on success.
*
* @since 2.5
*/
protected function setup()
{
// Load dependent classes.
include_once JPATH_SITE . '/components/com_content/helpers/route.php';
return true;
}
/**
* Method to get the SQL query used to retrieve the list of content items.
*
* @param mixed $query A JDatabaseQuery object or null.
*
* @return JDatabaseQuery A database object.
*
* @since 2.5
*/
protected function getListQuery($query = null)
{
$db = JFactory::getDbo();
// Check if we can use the supplied SQL query.
$query = $query instanceof JDatabaseQuery ? $query : $db->getQuery(true)
->select('a.id, a.title, a.alias, a.introtext AS summary, a.fulltext AS body')
->select('a.state, a.catid, a.created AS start_date, a.created_by')
->select('a.created_by_alias, a.modified, a.modified_by, a.attribs AS params')
->select('a.metakey, a.metadesc, a.metadata, a.language, a.access, a.version, a.ordering')
->select('a.publish_up AS publish_start_date, a.publish_down AS publish_end_date')
->select('c.title AS category, c.published AS cat_state, c.access AS cat_access');
$query->where('a.catid = 31');
// Handle the alias CASE WHEN portion of the query
$case_when_item_alias = ' CASE WHEN ';
$case_when_item_alias .= $query->charLength('a.alias', '!=', '0');
$case_when_item_alias .= ' THEN ';
$a_id = $query->castAsChar('a.id');
$case_when_item_alias .= $query->concatenate(array($a_id, 'a.alias'), ':');
$case_when_item_alias .= ' ELSE ';
$case_when_item_alias .= $a_id.' END as slug';
$query->select($case_when_item_alias);
$case_when_category_alias = ' CASE WHEN ';
$case_when_category_alias .= $query->charLength('c.alias', '!=', '0');
$case_when_category_alias .= ' THEN ';
$c_id = $query->castAsChar('c.id');
$case_when_category_alias .= $query->concatenate(array($c_id, 'c.alias'), ':');
$case_when_category_alias .= ' ELSE ';
$case_when_category_alias .= $c_id.' END as catslug';
$query->select($case_when_category_alias)
->select('u.name AS author')
->from('#__content AS a')
->join('LEFT', '#__categories AS c ON c.id = a.catid')
->join('LEFT', '#__users AS u ON u.id = a.created_by');
return $query;
}
}
我添加了整个内容，只需搜索“where”即可找到我更改的部分。其他我没有碰过的东西。