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<?php
/**
* @package Joomla.Plugin
* @subpackage Content.joomla
*
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* Example Content Plugin
*
* @since 1.6
*/
class PlgContentJoomla extends JPlugin
{
/**
* Example after save content method
* Article is passed by reference, but after the save, so no changes will be saved.
* Method is called right after the content is saved
*
* @param string $context The context of the content passed to the plugin (added in 1.6)
* @param object $article A JTableContent object
* @param boolean $isNew If the content is just about to be created
*
* @return boolean true if function not enabled, is in front-end or is new. Else true or
* false depending on success of save function.
*
* @since 1.6
*/
public function onContentAfterSave($context, $article, $isNew)
{
// Check we are handling the frontend edit form.
if ($context != 'com_content.form')
{
return true;
}
// Check if this function is enabled.
if (!$this->params->def('email_new_fe', 1))
{
return true;
}
// Check this is a new article.
if (!$isNew)
{
return true;
}
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select($db->quoteName('id'))
->from($db->quoteName('#__users'))
->where($db->quoteName('sendEmail') . ' = 1');
$db->setQuery($query);
$users = (array) $db->loadColumn();
if (empty($users))
{
return true;
}
$user = JFactory::getUser();
// Messaging for new items
JModelLegacy::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_messages/models', 'MessagesModel');
JTable::addIncludePath(JPATH_ADMINISTRATOR . '/components/com_messages/tables');
$default_language = JComponentHelper::getParams('com_languages')->get('administrator');
$debug = JFactory::getConfig()->get('debug_lang');
foreach ($users as $user_id)
{
if ($user_id != $user->id)
{
// Load language for messaging
$receiver = JUser::getInstance($user_id);
$lang = JLanguage::getInstance($receiver->getParam('admin_language', $default_language), $debug);
$lang->load('com_content');
$message = array(
'user_id_to' => $user_id,
'subject' => $lang->_('COM_CONTENT_NEW_ARTICLE'),
'message' => sprintf($lang->_('COM_CONTENT_ON_NEW_CONTENT'), $user->get('name'), $article->title)
);
$model_message = JModelLegacy::getInstance('Message', 'MessagesModel');
$result = $model_message->save($message);
}
}
return $result;
}
/**
* Don't allow categories to be deleted if they contain items or subcategories with items
*
* @param string $context The context for the content passed to the plugin.
* @param object $data The data relating to the content that was deleted.
*
* @return boolean
*
* @since 1.6
*/
public function onContentBeforeDelete($context, $data)
{
// Skip plugin if we are deleting something other than categories
if ($context != 'com_categories.category')
{
return true;
}
// Check if this function is enabled.
if (!$this->params->def('check_categories', 1))
{
return true;
}
$extension = JFactory::getApplication()->input->getString('extension');
// Default to true if not a core extension
$result = true;
$tableInfo = array(
'com_banners' => array('table_name' => '#__banners'),
'com_contact' => array('table_name' => '#__contact_details'),
'com_content' => array('table_name' => '#__content'),
'com_newsfeeds' => array('table_name' => '#__newsfeeds'),
'com_weblinks' => array('table_name' => '#__weblinks')
);
// Now check to see if this is a known core extension
if (isset($tableInfo[$extension]))
{
// Get table name for known core extensions
$table = $tableInfo[$extension]['table_name'];
// See if this category has any content items
$count = $this->_countItemsInCategory($table, $data->get('id'));
// Return false if db error
if ($count === false)
{
$result = false;
}
else
{
// Show error if items are found in the category
if ($count > 0)
{
$msg = JText::sprintf('COM_CATEGORIES_DELETE_NOT_ALLOWED', $data->get('title')) .
JText::plural('COM_CATEGORIES_N_ITEMS_ASSIGNED', $count);
JError::raiseWarning(403, $msg);
$result = false;
}
// Check for items in any child categories (if it is a leaf, there are no child categories)
if (!$data->isLeaf())
{
$count = $this->_countItemsInChildren($table, $data->get('id'), $data);
if ($count === false)
{
$result = false;
}
elseif ($count > 0)
{
$msg = JText::sprintf('COM_CATEGORIES_DELETE_NOT_ALLOWED', $data->get('title')) .
JText::plural('COM_CATEGORIES_HAS_SUBCATEGORY_ITEMS', $count);
JError::raiseWarning(403, $msg);
$result = false;
}
}
}
return $result;
}
}
/**
* Get count of items in a category
*
* @param string $table table name of component table (column is catid)
* @param integer $catid id of the category to check
*
* @return mixed count of items found or false if db error
*
* @since 1.6
*/
private function _countItemsInCategory($table, $catid)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
// Count the items in this category
$query->select('COUNT(id)')
->from($table)
->where('catid = ' . $catid);
$db->setQuery($query);
try
{
$count = $db->loadResult();
}
catch (RuntimeException $e)
{
JError::raiseWarning(500, $e->getMessage());
return false;
}
return $count;
}
/**
* Get count of items in a category's child categories
*
* @param string $table table name of component table (column is catid)
* @param integer $catid id of the category to check
* @param object $data The data relating to the content that was deleted.
*
* @return mixed count of items found or false if db error
*
* @since 1.6
*/
private function _countItemsInChildren($table, $catid, $data)
{
$db = JFactory::getDbo();
// Create subquery for list of child categories
$childCategoryTree = $data->getTree();
// First element in tree is the current category, so we can skip that one
unset($childCategoryTree[0]);
$childCategoryIds = array();
foreach ($childCategoryTree as $node)
{
$childCategoryIds[] = $node->id;
}
// Make sure we only do the query if we have some categories to look in
if (count($childCategoryIds))
{
// Count the items in this category
$query = $db->getQuery(true)
->select('COUNT(id)')
->from($table)
->where('catid IN (' . implode(',', $childCategoryIds) . ')');
$db->setQuery($query);
try
{
$count = $db->loadResult();
}
catch (RuntimeException $e)
{
JError::raiseWarning(500, $e->getMessage());
return false;
}
return $count;
}
else
// If we didn't have any categories to check, return 0
{
return 0;
}
}
/**
* Change the state in core_content if the state in a table is changed
*
* @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 $value The value of the state that the content has been changed to.
*
* @return boolean
*
* @since 3.1
*/
public function onContentChangeState($context, $pks, $value)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select($db->quoteName('core_content_id'))
->from($db->quoteName('#__ucm_content'))
->where($db->quoteName('core_type_alias') . ' = ' . $db->quote($context))
->where($db->quoteName('core_content_item_id') . ' IN (' . $pksImploded = implode(',', $pks) . ')');
$db->setQuery($query);
$ccIds = $db->loadColumn();
$cctable = new JTableCorecontent($db);
$cctable->publish($ccIds, $value);
return true;
}
}
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