Current File : /home/admin/public_html/old/administrator/components/com_contenthistory/models/history.php
<?php
/**
* @package Joomla.Administrator
* @subpackage com_contenthistory
*
* @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;
/**
* Methods supporting a list of contenthistory records.
*
* @since 3.2
*/
class ContenthistoryModelHistory extends JModelList
{
/**
* Constructor.
*
* @param array $config An optional associative array of configuration settings.
*
* @see JControllerLegacy
* @since 3.2
*/
public function __construct($config = array())
{
if (empty($config['filter_fields']))
{
$config['filter_fields'] = array(
'version_id', 'h.version_id',
'version_note', 'h.version_note',
'save_date', 'h.save_date',
'editor_user_id', 'h.editor_user_id',
);
}
parent::__construct($config);
}
/**
* Method to test whether a history record can be deleted. Note that we check whether we have edit permissions
* for the content item row.
*
* @param object $record A JTable object.
*
* @return boolean True if allowed to delete the record. Defaults to the permission set in the component.
*
* @since 3.2
*/
protected function canEdit($record)
{
if (!empty($record->ucm_type_id))
{
$result = false;
// Check that the type id matches the type alias
$typeAlias = JFactory::getApplication()->input->get('type_alias');
$contentTypeTable = JTable::getInstance('Contenttype', 'JTable');
if ($contentTypeTable->getTypeId($typeAlias) == $record->ucm_type_id)
{
/**
* Make sure user has edit privileges for this content item. Note that we use edit permissions
* for the content item, not delete permissions for the content history row.
*/
$user = JFactory::getUser();
$result = $user->authorise('core.edit', $typeAlias . (int) $record->version_id);
}
}
return $result;
}
/**
* Method to delete one or more records from content history table.
*
* @param array &$pks An array of record primary keys.
*
* @return boolean True if successful, false if an error occurs.
*
* @since 3.2
*/
public function delete(&$pks)
{
$pks = (array) $pks;
$table = $this->getTable();
// Iterate the items to delete each one.
foreach ($pks as $i => $pk)
{
if ($table->load($pk))
{
if ($this->canEdit($table))
{
if (!$table->delete($pk))
{
$this->setError($table->getError());
return false;
}
}
else
{
// Prune items that you can't change.
unset($pks[$i]);
$error = $this->getError();
if ($error)
{
JLog::add($error, JLog::WARNING, 'jerror');
return false;
}
else
{
JLog::add(JText::_('JLIB_APPLICATION_ERROR_DELETE_NOT_PERMITTED'), JLog::WARNING, 'jerror');
return false;
}
}
}
else
{
$this->setError($table->getError());
return false;
}
}
// Clear the component's cache
$this->cleanCache();
return true;
}
/**
* Method to get a table object, load it if necessary.
*
* @param string $type The table name. Optional.
* @param string $prefix The class prefix. Optional.
* @param array $config Configuration array for model. Optional.
*
* @return JTable A JTable object
*
* @since 3.2
*/
public function getTable($type = 'Contenthistory', $prefix = 'JTable', $config = array())
{
return JTable::getInstance($type, $prefix, $config);
}
/**
* Method to toggle on and off the keep forever value for one or more records from content history table.
*
* @param array &$pks An array of record primary keys.
*
* @return boolean True if successful, false if an error occurs.
*
* @since 3.2
*/
public function keep(&$pks)
{
$pks = (array) $pks;
$table = $this->getTable();
// Iterate the items to delete each one.
foreach ($pks as $i => $pk)
{
if ($table->load($pk))
{
if ($this->canEdit($table))
{
$table->keep_forever = $table->keep_forever ? 0 : 1;
if (!$table->store())
{
$this->setError($table->getError());
return false;
}
}
else
{
// Prune items that you can't change.
unset($pks[$i]);
$error = $this->getError();
if ($error)
{
JLog::add($error, JLog::WARNING, 'jerror');
return false;
}
else
{
JLog::add(JText::_('COM_CONTENTHISTORY_ERROR_KEEP_NOT_PERMITTED'), JLog::WARNING, 'jerror');
return false;
}
}
}
else
{
$this->setError($table->getError());
return false;
}
}
// Clear the component's cache
$this->cleanCache();
return true;
}
/**
* Method to auto-populate the model state.
*
* Note. Calling getState in this method will result in recursion.
*
* @param string $ordering An optional ordering field.
* @param string $direction An optional direction (asc|desc).
*
* @return void
*
* @since 3.2
*/
protected function populateState($ordering = null, $direction = null)
{
$input = JFactory::getApplication()->input;
$itemId = $input->get('item_id', 0, 'integer');
$typeId = $input->get('type_id', 0, 'integer');
$typeAlias = $input->get('type_alias', '', 'string');
$this->setState('item_id', $itemId);
$this->setState('type_id', $typeId);
$this->setState('type_alias', $typeAlias);
$this->setState('sha1_hash', $this->getSha1Hash());
// Load the parameters.
$params = JComponentHelper::getParams('com_contenthistory');
$this->setState('params', $params);
// List state information.
parent::populateState('h.save_date', 'DESC');
}
/**
* Build an SQL query to load the list data.
*
* @return JDatabaseQuery
*
* @since 3.2
*/
protected function getListQuery()
{
// Create a new query object.
$db = $this->getDbo();
$query = $db->getQuery(true);
// Select the required fields from the table.
$query->select(
$this->getState(
'list.select',
'h.version_id, h.ucm_item_id, h.ucm_type_id, h.version_note, h.save_date, h.editor_user_id,' .
'h.character_count, h.sha1_hash, h.version_data, h.keep_forever'
)
)
->from($db->quoteName('#__ucm_history') . ' AS h')
->where($db->quoteName('h.ucm_item_id') . ' = ' . $this->getState('item_id'))
->where($db->quoteName('h.ucm_type_id') . ' = ' . $this->getState('type_id'))
// Join over the users for the editor
->select('uc.name AS editor')
->join('LEFT', '#__users AS uc ON uc.id = h.editor_user_id');
// Add the list ordering clause.
$orderCol = $this->state->get('list.ordering');
$orderDirn = $this->state->get('list.direction');
$query->order($db->quoteName($orderCol) . $orderDirn);
return $query;
}
/**
* Get the sha1 hash value for the current item being edited.
*
* @return string sha1 hash of row data
*
* @since 3.2
*/
protected function getSha1Hash()
{
$result = false;
$typeTable = JTable::getInstance('Contenttype', 'JTable');
$typeId = JFactory::getApplication()->input->getInteger('type_id', 0);
$typeTable->load($typeId);
$typeAliasArray = explode('.', $typeTable->type_alias);
JTable::addIncludePath(JPATH_ROOT . '/administrator/components/' . $typeAliasArray[0] . '/tables');
$contentTable = $typeTable->getContentTable();
$keyValue = JFactory::getApplication()->input->getInteger('item_id', 0);
if ($contentTable && $contentTable->load($keyValue))
{
$helper = new JHelper;
$dataObject = $helper->getDataObject($contentTable);
$result = $this->getTable('Contenthistory', 'JTable')->getSha1(json_encode($dataObject), $typeTable);
}
return $result;
}
}