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<?php
/**
* JComments - Joomla Comment System
*
* @version 3.0
* @package JComments
* @author Sergey M. Litvinov (smart@joomlatune.ru)
* @copyright (C) 2006-2013 by Sergey M. Litvinov (http://www.joomlatune.ru)
* @license GNU/GPL: http://www.gnu.org/copyleft/gpl.html
*/
defined('_JEXEC') or die;
/**
* JComments Content Plugin Helper
*
*/
class JCommentsContentPluginHelper
{
/**
*
* @param object $row The content item object
* @param array $patterns
* @param array $replacements
* @return void
*/
protected static function _processTags( &$row, $patterns = array(), $replacements = array())
{
if (count($patterns) > 0) {
ob_start();
$keys = array('introtext', 'fulltext', 'text');
foreach($keys as $key) {
if (isset($row->$key)) {
$row->$key = preg_replace($patterns, $replacements, $row->$key);
}
}
ob_end_clean();
}
}
/**
* Searches given tag in content object
*
* @param object $row The content item object
* @param string $pattern
* @return boolean True if any tag found, False otherwise
*/
protected static function _findTag( &$row, $pattern)
{
$keys = array('introtext', 'fulltext', 'text');
foreach($keys as $key) {
if (isset($row->$key) && preg_match($pattern, $row->$key)) {
return true;
}
}
return false;
}
/**
* Replaces or removes commenting systems tags like {moscomment}, {jomcomment} etc
*
* @param object $row The content item object
* @param boolean $removeTags Remove all 3rd party tags or replace it to JComments tags?
* @return void
*/
public static function processForeignTags( &$row, $removeTags = false)
{
if (false == $removeTags) {
$patterns = array('#\{(jomcomment|easycomments|KomentoEnable)\}#is', '#\{(\!jomcomment|KomentoDisable)\}#is', '#\{KomentoLock\}#is');
$replacements = array('{jcomments on}', '{jcomments off}', '{jcomments lock}');
} else {
$patterns = array('#\{(jomcomment|easycomments|KomentoEnable|KomentoDisable|KomentoLock)\}#is');
$replacements = array('');
}
self::_processTags($row, $patterns, $replacements);
}
/**
* Return true if one of text fields contains {jcomments on} tag
*
* @param object $row Content object
* @return boolean True if {jcomments on} found, False otherwise
*/
public static function isEnabled( &$row )
{
return self::_findTag($row, '/{jcomments\s+on}/is');
}
/**
* Return true if one of text fields contains {jcomments off} tag
*
* @param object $row Content object
* @return boolean True if {jcomments off} found, False otherwise
*/
public static function isDisabled( &$row )
{
return self::_findTag($row, '/{jcomments\s+off}/is');
}
/**
* Return true if one of text fields contains {jcomments lock} tag
*
* @param object $row Content object
* @return boolean True if {jcomments lock} found, False otherwise
*/
public static function isLocked( &$row )
{
return self::_findTag($row, '/{jcomments\s+lock}/is');
}
/**
* Clears all JComments tags from content item
*
* @param object $row Content object
* @return void
*/
public static function clear( &$row )
{
$patterns = array('/{jcomments\s+(off|on|lock)}/is');
$replacements = array('');
self::_processTags($row, $patterns, $replacements);
}
/**
* Checks if comments are enabled for specified category
*
* @param int $id Category ID
* @return boolean
*/
public static function checkCategory( $id )
{
$config = JCommentsFactory::getConfig();
$categories = $config->get('enable_categories', '');
$ids = explode(',', $categories);
return ($categories == '*' || ($categories != '' && in_array($id, $ids)));
}
}