366 lines
9.8 KiB
PHP
366 lines
9.8 KiB
PHP
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<?php
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/**
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* @package Joomla.Plugin
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* @subpackage Finder.Newsfeeds
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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_BASE') or die;
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require_once JPATH_ADMINISTRATOR . '/components/com_finder/helpers/indexer/adapter.php';
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/**
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* Finder adapter for Joomla Newsfeeds.
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*
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* @package Joomla.Plugin
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* @subpackage Finder.Newsfeeds
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* @since 2.5
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*/
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class PlgFinderNewsfeeds extends FinderIndexerAdapter
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{
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/**
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* The plugin identifier.
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*
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* @var string
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* @since 2.5
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*/
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protected $context = 'Newsfeeds';
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/**
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* The extension name.
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*
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* @var string
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* @since 2.5
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*/
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protected $extension = 'com_newsfeeds';
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/**
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* The sublayout to use when rendering the results.
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*
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* @var string
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* @since 2.5
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*/
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protected $layout = 'newsfeed';
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/**
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* The type of content that the adapter indexes.
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*
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* @var string
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* @since 2.5
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*/
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protected $type_title = 'News Feed';
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/**
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* The table name.
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*
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* @var string
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* @since 2.5
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*/
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protected $table = '#__newsfeeds';
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/**
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* The field the published state is stored in.
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*
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* @var string
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* @since 2.5
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*/
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protected $state_field = 'published';
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/**
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* Load the language file on instantiation.
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*
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* @var boolean
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* @since 3.1
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*/
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protected $autoloadLanguage = true;
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/**
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* Method to update the item link information when the item category is
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* changed. This is fired when the item category is published or unpublished
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* from the list view.
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*
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* @param string $extension The extension whose category has been updated.
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* @param array $pks A list of primary key ids of the content that has changed state.
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* @param integer $value The value of the state that the content has been changed to.
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*
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* @return void
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*
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* @since 2.5
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*/
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public function onFinderCategoryChangeState($extension, $pks, $value)
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{
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// Make sure we're handling com_newsfeeds categories
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if ($extension == 'com_newsfeeds')
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{
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$this->categoryStateChange($pks, $value);
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}
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}
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/**
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* Method to remove the link information for items that have been deleted.
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*
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* @param string $context The context of the action being performed.
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* @param JTable $table A JTable object containing the record to be deleted
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*
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* @return boolean True on success.
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*
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* @since 2.5
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* @throws Exception on database error.
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*/
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public function onFinderAfterDelete($context, $table)
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{
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if ($context == 'com_newsfeeds.newsfeed')
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{
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$id = $table->id;
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}
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elseif ($context == 'com_finder.index')
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{
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$id = $table->link_id;
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}
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else
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{
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return true;
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}
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// Remove the items.
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return $this->remove($id);
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}
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/**
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* Method to determine if the access level of an item changed.
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*
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* @param string $context The context of the content passed to the plugin.
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* @param JTable $row A JTable object
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* @param boolean $isNew If the content has just been created
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*
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* @return boolean True on success.
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*
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* @since 2.5
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* @throws Exception on database error.
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*/
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public function onFinderAfterSave($context, $row, $isNew)
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{
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// We only want to handle news feeds here
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if ($context == 'com_newsfeeds.newsfeed')
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{
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// Check if the access levels are different
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if (!$isNew && $this->old_access != $row->access)
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{
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// Process the change.
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$this->itemAccessChange($row);
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}
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// Reindex the item
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$this->reindex($row->id);
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}
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// Check for access changes in the category
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if ($context == 'com_categories.category')
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{
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// Check if the access levels are different
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if (!$isNew && $this->old_cataccess != $row->access)
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{
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$this->categoryAccessChange($row);
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}
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}
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return true;
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}
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/**
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* Method to reindex the link information for an item that has been saved.
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* This event is fired before the data is actually saved so we are going
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* to queue the item to be indexed later.
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*
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* @param string $context The context of the content passed to the plugin.
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* @param JTable $row A JTable object
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* @param boolean $isNew If the content is just about to be created
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*
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* @return boolean True on success.
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*
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* @since 2.5
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* @throws Exception on database error.
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*/
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public function onFinderBeforeSave($context, $row, $isNew)
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{
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// We only want to handle news feeds here
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if ($context == 'com_newsfeeds.newsfeed')
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{
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// Query the database for the old access level if the item isn't new
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if (!$isNew)
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{
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$this->checkItemAccess($row);
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}
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}
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// Check for access levels from the category
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if ($context == 'com_categories.category')
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{
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// Query the database for the old access level if the item isn't new
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if (!$isNew)
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{
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$this->checkCategoryAccess($row);
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}
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}
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return true;
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}
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/**
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* Method to update the link information for items that have been changed
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* from outside the edit screen. This is fired when the item is published,
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* unpublished, archived, or unarchived from the list view.
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*
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* @param string $context The context for the content passed to the plugin.
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* @param array $pks A list of primary key ids of the content that has changed state.
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* @param integer $value The value of the state that the content has been changed to.
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*
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* @return void
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*
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* @since 2.5
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*/
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public function onFinderChangeState($context, $pks, $value)
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{
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// We only want to handle news feeds here
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if ($context == 'com_newsfeeds.newsfeed')
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{
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$this->itemStateChange($pks, $value);
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}
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// Handle when the plugin is disabled
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if ($context == 'com_plugins.plugin' && $value === 0)
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{
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$this->pluginDisable($pks);
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}
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}
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/**
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* Method to index an item. The item must be a FinderIndexerResult object.
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*
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* @param FinderIndexerResult $item The item to index as an FinderIndexerResult object.
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* @param string $format The item format
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*
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* @return void
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*
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* @since 2.5
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* @throws Exception on database error.
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*/
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protected function index(FinderIndexerResult $item, $format = 'html')
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{
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// Check if the extension is enabled
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if (JComponentHelper::isEnabled($this->extension) == false)
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{
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return;
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}
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$item->setLanguage();
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// Initialize the item parameters.
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$registry = new JRegistry;
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$registry->loadString($item->params);
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$item->params = $registry;
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$registry = new JRegistry;
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$registry->loadString($item->metadata);
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$item->metadata = $registry;
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// Build the necessary route and path information.
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$item->url = $this->getURL($item->id, $this->extension, $this->layout);
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$item->route = NewsfeedsHelperRoute::getNewsfeedRoute($item->slug, $item->catslug);
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$item->path = FinderIndexerHelper::getContentPath($item->route);
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/*
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* Add the meta-data processing instructions based on the newsfeeds
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* configuration parameters.
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*/
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// Add the meta-author.
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$item->metaauthor = $item->metadata->get('author');
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// Handle the link to the meta-data.
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'link');
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'metakey');
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'metadesc');
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'metaauthor');
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'author');
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$item->addInstruction(FinderIndexer::META_CONTEXT, 'created_by_alias');
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// Add the type taxonomy data.
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$item->addTaxonomy('Type', 'News Feed');
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// Add the category taxonomy data.
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$item->addTaxonomy('Category', $item->category, $item->cat_state, $item->cat_access);
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// Add the language taxonomy data.
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$item->addTaxonomy('Language', $item->language);
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// Get content extras.
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FinderIndexerHelper::getContentExtras($item);
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// Index the item.
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$this->indexer->index($item);
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}
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/**
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* Method to setup the indexer to be run.
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*
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* @return boolean True on success.
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*
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* @since 2.5
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*/
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protected function setup()
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{
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// Load dependent classes.
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require_once JPATH_SITE . '/components/com_newsfeeds/helpers/route.php';
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return true;
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}
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/**
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* Method to get the SQL query used to retrieve the list of content items.
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*
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* @param mixed $query A JDatabaseQuery object or null.
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*
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* @return JDatabaseQuery A database object.
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*
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* @since 2.5
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*/
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protected function getListQuery($query = null)
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{
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$db = JFactory::getDbo();
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// Check if we can use the supplied SQL query.
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$query = $query instanceof JDatabaseQuery ? $query : $db->getQuery(true)
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->select('a.id, a.catid, a.name AS title, a.alias, a.link AS link')
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->select('a.published AS state, a.ordering, a.created AS start_date, a.params, a.access')
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->select('a.publish_up AS publish_start_date, a.publish_down AS publish_end_date')
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->select('a.metakey, a.metadesc, a.metadata, a.language')
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->select('a.created_by, a.created_by_alias, a.modified, a.modified_by')
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->select('c.title AS category, c.published AS cat_state, c.access AS cat_access');
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// Handle the alias CASE WHEN portion of the query
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$case_when_item_alias = ' CASE WHEN ';
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$case_when_item_alias .= $query->charLength('a.alias', '!=', '0');
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$case_when_item_alias .= ' THEN ';
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$a_id = $query->castAsChar('a.id');
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$case_when_item_alias .= $query->concatenate(array($a_id, 'a.alias'), ':');
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$case_when_item_alias .= ' ELSE ';
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$case_when_item_alias .= $a_id.' END as slug';
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$query->select($case_when_item_alias);
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$case_when_category_alias = ' CASE WHEN ';
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$case_when_category_alias .= $query->charLength('c.alias', '!=', '0');
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$case_when_category_alias .= ' THEN ';
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$c_id = $query->castAsChar('c.id');
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$case_when_category_alias .= $query->concatenate(array($c_id, 'c.alias'), ':');
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$case_when_category_alias .= ' ELSE ';
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$case_when_category_alias .= $c_id.' END as catslug';
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$query->select($case_when_category_alias)
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->from('#__newsfeeds AS a')
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->join('LEFT', '#__categories AS c ON c.id = a.catid');
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return $query;
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}
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}
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