File Source for newsfeeds.php

<?php
/**
* @package Joomla.Plugin
* @subpackage Finder.Newsfeeds
*
* @copyright Copyright (C) 2005 - 2013 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';
/**
* Finder adapter for Joomla Newsfeeds.
*
* @package Joomla.Plugin
* @subpackage Finder.Newsfeeds
* @since 2.5
*/
class PlgFinderNewsfeeds extends FinderIndexerAdapter
{
/**
* The plugin identifier.
*
* @var string
* @since 2.5
*/
protected $context = 'Newsfeeds';
/**
* The extension name.
*
* @var string
* @since 2.5
*/
protected $extension = 'com_newsfeeds';
/**
* The sublayout to use when rendering the results.
*
* @var string
* @since 2.5
*/
protected $layout = 'newsfeed';
/**
* The type of content that the adapter indexes.
*
* @var string
* @since 2.5
*/
protected $type_title = 'News Feed';
/**
* The table name.
*
* @var string
* @since 2.5
*/
protected $table = '#__newsfeeds';
/**
* The field the published state is stored in.
*
* @var string
* @since 2.5
*/
protected $state_field = 'published';
/**
* 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 This is fired when the item category is published or unpublished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, $value)
{
// Make sure we're handling com_newsfeeds categories
if ($extension == 'com_newsfeeds')
{
$this->categoryStateChange($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_newsfeeds.newsfeed')
{
$id = $table->id;
}
elseif ($context == 'com_finder.index')
{
$id = $table->link_id;
}
else
{
return true;
}
// Remove the items.
return $this->remove($id);
}
/**
* Method to determine if the access level of an item changed.
*
* @param string $context The context of the content passed to the plugin.
* @param JTable $row A JTable object
* @param boolean $isNew If the content has just been created
*
* @return boolean True on success.
*
* @since 2.5
* @throws Exception on database error.
*/
public function onFinderAfterSave($context, $row, $isNew)
{
// We only want to handle news feeds here
if ($context == 'com_newsfeeds.newsfeed')
{
// 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;
}
/**
* Method to reindex the link information for an item that has been saved.
* This event is fired before the data is actually saved so we are going
* to queue the item to be indexed later.
*
* @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, $isNew)
{
// We only want to handle news feeds here
if ($context == 'com_newsfeeds.newsfeed')
{
// 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 A list of primary key ids of the content that has changed state.
* @param integer $value The value of the state that the content has been changed to.
*
* @return void
*
* @since 2.5
*/
public function onFinderChangeState($context, $pks, $value)
{
// We only want to handle news feeds here
if ($context == 'com_newsfeeds.newsfeed')
{
$this->itemStateChange($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
*
* @return void
*
* @since 2.5
* @throws Exception on database error.
*/
protected function index(FinderIndexerResult $item, $format = 'html')
{
// Check if the extension is enabled
if (JComponentHelper::isEnabled($this->extension) == false)
{
return;
}
$item->setLanguage();
// Initialize the item parameters.
$registry = new JRegistry;
$registry->loadString($item->params);
$item->params = $registry;
$registry = new JRegistry;
$registry->loadString($item->metadata);
$item->metadata = $registry;
// Build the necessary route and path information.
$item->url = $this->getURL($item->id, $this->extension, $this->layout);
$item->route = NewsfeedsHelperRoute::getNewsfeedRoute($item->slug, $item->catslug);
$item->path = FinderIndexerHelper::getContentPath($item->route);
/*
* Add the meta-data processing instructions based on the newsfeeds
* configuration parameters.
*/
// Add the meta-author.
$item->metaauthor = $item->metadata->get('author');
// Handle the link to the meta-data.
$item->addInstruction(FinderIndexer::META_CONTEXT, 'link');
$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');
// Add the type taxonomy data.
$item->addTaxonomy('Type', 'News Feed');
// 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.
require_once JPATH_SITE . '/components/com_newsfeeds/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.catid, a.name AS title, a.alias, a.link AS link')
->select('a.published AS state, a.ordering, a.created AS start_date, a.params, a.access')
->select('a.publish_up AS publish_start_date, a.publish_down AS publish_end_date')
->select('a.metakey, a.metadesc, a.metadata, a.language')
->select('a.created_by, a.created_by_alias, a.modified, a.modified_by')
->select('c.title AS category, c.published AS cat_state, c.access AS cat_access');
// 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)
->from('#__newsfeeds AS a')
->join('LEFT', '#__categories AS c ON c.id = a.catid');
return $query;
}
}

Documentation generated on Tue, 19 Nov 2013 15:09:32 +0100 by phpDocumentor 1.4.3

Source for file newsfeeds.php