PC World 2008 September/PCWorld_2008-09_cd.bin/domacnost a kancelar/joomla/Joomla_1.5.4-Stable-Full_Package.exe/plugins/content/pagenavigation.php

PHP Script | 2008-07-06 | 5.4 KB | 221 lines

<?php
/**
* @version        $Id: pagenavigation.php 10381 2008-06-01 03:35:53Z pasamio $
* @package        Joomla
* @copyright    Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
* @license        GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

$mainframe->registerEvent( 'onBeforeDisplayContent', 'plgContentNavigation' );

function plgContentNavigation( &$row, &$params, $page=0 )
{
    $view        = JRequest::getCmd('view');

    // Get Plugin info
    $plugin =& JPluginHelper::getPlugin('content', 'pagenavigation');

    if ($params->get('show_item_navigation') && ($view == 'article'))
    {

        $html         = '';
        $db         = & JFactory::getDBO();
        $user        = & JFactory::getUser();
        $nullDate    = $db->getNullDate();

        $date        =& JFactory::getDate();
        $config     = & JFactory::getConfig();
        $now         = $date->toMySQL();

        $uid         = $row->id;
        $option     = 'com_content';
        $canPublish = $user->authorize('com_content', 'publish', 'content', 'all');

        // the following is needed as different menu items types utilise a different param to control ordering
        // for Blogs the `orderby_sec` param is the order controlling param
        // for Table and List views it is the `orderby` param
        $params_list = $params->toArray();
        if (array_key_exists('orderby_sec', $params_list)) {
            $order_method = $params->get('orderby_sec', '');
        } else {
            $order_method = $params->get('orderby', '');
        }
        // additional check for invalid sort ordering
        if ( $order_method == 'front' ) {
            $order_method = '';
        }

        // Determine sort order
        switch ($order_method)
        {
            case 'date' :
                $orderby = 'a.created';
                break;

            case 'rdate' :
                $orderby = 'a.created DESC';
                break;

            case 'alpha' :
                $orderby = 'a.title';
                break;

            case 'ralpha' :
                $orderby = 'a.title DESC';
                break;

            case 'hits' :
                $orderby = 'a.hits';
                break;

            case 'rhits' :
                $orderby = 'a.hits DESC';
                break;

            case 'order' :
                $orderby = 'a.ordering';
                break;

            case 'author' :
                $orderby = 'a.created_by_alias, u.name';
                break;

            case 'rauthor' :
                $orderby = 'a.created_by_alias DESC, u.name DESC';
                break;

            case 'front' :
                $orderby = 'f.ordering';
                break;

            default :
                $orderby = 'a.ordering';
                break;
        }

        $xwhere = ' AND ( a.state = 1 OR a.state = -1 )' .
        ' AND ( publish_up = '.$db->Quote($nullDate).' OR publish_up <= '.$db->Quote($now).' )' .
        ' AND ( publish_down = '.$db->Quote($nullDate).' OR publish_down >= '.$db->Quote($now).' )';

        // array of articles in same category correctly ordered
        $query = 'SELECT a.id,'
        . ' CASE WHEN CHAR_LENGTH(a.alias) THEN CONCAT_WS(":", a.id, a.alias) ELSE a.id END as slug,'
        . ' CASE WHEN CHAR_LENGTH(cc.alias) THEN CONCAT_WS(":", cc.id, cc.alias) ELSE cc.id END as catslug'
        . ' FROM #__content AS a'
        . ' LEFT JOIN #__categories AS cc ON cc.id = a.catid'
        . ' WHERE a.catid = ' . (int) $row->catid
        . ' AND a.state = '. (int) $row->state
        . ($canPublish ? '' : ' AND a.access <= ' .(int) $user->get('aid', 0))
        . $xwhere
        . ' ORDER BY '. $orderby;
        $db->setQuery($query);
        $list = $db->loadObjectList('id');

        // this check needed if incorrect Itemid is given resulting in an incorrect result
        if ( !is_array($list) ) {
            $list = array();
        }

        reset($list);

        // location of current content item in array list
        $location = array_search($uid, array_keys($list));

        $rows = array_values($list);

        $row->prev = null;
        $row->next = null;

        if ($location -1 >= 0)     {
            // the previous content item cannot be in the array position -1
            $row->prev = $rows[$location -1];
        }

        if (($location +1) < count($rows)) {
            // the next content item cannot be in an array position greater than the number of array postions
            $row->next = $rows[$location +1];
        }

        $pnSpace = "";
        if (JText::_('<') || JText::_('>')) {
            $pnSpace = " ";
        }

        if ($row->prev) {
            $row->prev = JRoute::_('index.php?option=com_content&view=article&catid='.$row->prev->catslug.'&id='.$row->prev->slug);
        } else {
            $row->prev = '';
        }

        if ($row->next) {
            $row->next = JRoute::_('index.php?option=com_content&view=article&catid='.$row->next->catslug.'&id='.$row->next->slug);
        } else {
            $row->next = '';
        }


        // output
        if ($row->prev || $row->next)
        {
            $html = '
            <table align="center" class="pagenav">
            <tr>'
            ;
            if ($row->prev)
            {
                $html .= '
                <th class="pagenav_prev">
                    <a href="'. $row->prev .'">'
                        . JText::_( '<' ) . $pnSpace . JText::_( 'Prev' ) . '</a>
                </th>'
                ;
            }

            if ($row->prev && $row->next)
            {
                $html .= '
                <td width="50">

                </td>'
                ;
            }

            if ($row->next)
            {
                $html .= '
                <th class="pagenav_next">
                    <a href="'. $row->next .'">'
                        . JText::_( 'Next' ) . $pnSpace . JText::_( '>' ) .'</a>
                </th>'
                ;
            }
            $html .= '
            </tr>
            </table>'
            ;

            // Get the plugin parameters
            $pluginParams = new JParameter( $plugin->params );
            $position      = $pluginParams->get('position', 1);

            if ($position) {
            // display after content
                $row->text .= $html;
            } else {
            // display before content
                $row->text = $html . $row->text;
            }
        }
    }

    return ;
}