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<?php /** * @package Joomla.Plugin * @subpackage Content.pagenavigation * * @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org> * @license GNU General Public License version 2 or later; see LICENSE.txt */ defined('_JEXEC') or die; use Joomla\CMS\Access\Access; use Joomla\CMS\Factory; use Joomla\CMS\Language\Text; use Joomla\CMS\Plugin\CMSPlugin; use Joomla\CMS\Plugin\PluginHelper; use Joomla\Component\Content\Site\Helper\RouteHelper; use Joomla\Database\ParameterType; /** * Pagenavigation plugin class. * * @since 1.5 */ class PlgContentPagenavigation extends CMSPlugin { /** * If in the article view and the parameter is enabled shows the page navigation * * @param string $context The context of the content being passed to the plugin * @param object &$row The article object * @param mixed &$params The article params * @param integer $page The 'page' number * * @return mixed void or true * * @since 1.6 */ public function onContentBeforeDisplay($context, &$row, &$params, $page = 0) { $app = Factory::getApplication(); $view = $app->input->get('view'); $print = $app->input->getBool('print'); if ($print) { return false; } if ($context === 'com_content.article' && $view === 'article' && $params->get('show_item_navigation')) { $db = Factory::getDbo(); $user = Factory::getUser(); $lang = Factory::getLanguage(); $now = Factory::getDate()->toSql(); $query = $db->getQuery(true); $uid = $row->id; $option = 'com_content'; $canPublish = $user->authorise('core.edit.state', $option . '.article.' . $row->id); /** * 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') { $order_method = ''; } if (in_array($order_method, ['date', 'rdate'])) { // Get the order code $orderDate = $params->get('order_date'); switch ($orderDate) { // Use created if modified is not set case 'modified': $orderby = 'CASE WHEN ' . $db->quoteName('a.modified') . ' IS NULL THEN ' . $db->quoteName('a.created') . ' ELSE ' . $db->quoteName('a.modified') . ' END'; break; // Use created if publish_up is not set case 'published': $orderby = 'CASE WHEN ' . $db->quoteName('a.publish_up') . ' IS NULL THEN ' . $db->quoteName('a.created') . ' ELSE ' . $db->quoteName('a.publish_up') . ' END'; break; // Use created as default default : $orderby = $db->quoteName('a.created'); break; } if ($order_method === 'rdate') { $orderby .= ' DESC'; } } else { // Determine sort order. switch ($order_method) { case 'alpha': $orderby = $db->quoteName('a.title'); break; case 'ralpha': $orderby = $db->quoteName('a.title') . ' DESC'; break; case 'hits': $orderby = $db->quoteName('a.hits'); break; case 'rhits': $orderby = $db->quoteName('a.hits') . ' DESC'; break; case 'author': $orderby = $db->quoteName(['a.created_by_alias', 'u.name']); break; case 'rauthor': $orderby = $db->quoteName('a.created_by_alias') . ' DESC, ' . $db->quoteName('u.name') . ' DESC'; break; case 'front': $orderby = $db->quoteName('f.ordering'); break; default: $orderby = $db->quoteName('a.ordering'); break; } } $query->order($orderby); $case_when = ' CASE WHEN ' . $query->charLength($db->quoteName('a.alias'), '!=', '0') . ' THEN ' . $query->concatenate([$query->castAsChar($db->quoteName('a.id')), $db->quoteName('a.alias')], ':') . ' ELSE ' . $query->castAsChar('a.id') . ' END AS ' . $db->quoteName('slug'); $case_when1 = ' CASE WHEN ' . $query->charLength($db->quoteName('cc.alias'), '!=', '0') . ' THEN ' . $query->concatenate([$query->castAsChar($db->quoteName('cc.id')), $db->quoteName('cc.alias')], ':') . ' ELSE ' . $query->castAsChar('cc.id') . ' END AS ' . $db->quoteName('catslug'); $query->select($db->quoteName(['a.id', 'a.title', 'a.catid', 'a.language'])) ->select([$case_when, $case_when1]) ->from($db->quoteName('#__content', 'a')) ->join('LEFT', $db->quoteName('#__categories', 'cc'), $db->quoteName('cc.id') . ' = ' . $db->quoteName('a.catid')); if ($order_method === 'author' || $order_method === 'rauthor') { $query->select($db->quoteName(['a.created_by', 'u.name'])); $query->join('LEFT', $db->quoteName('#__users', 'u'), $db->quoteName('u.id') . ' = ' . $db->quoteName('a.created_by')); } $query->where( [ $db->quoteName('a.catid') . ' = :catid', $db->quoteName('a.state') . ' = :state', ] ) ->bind(':catid', $row->catid, ParameterType::INTEGER) ->bind(':state', $row->state, ParameterType::INTEGER); if (!$canPublish) { $query->whereIn($db->quoteName('a.access'), Access::getAuthorisedViewLevels($user->id)); } $query->where( [ '(' . $db->quoteName('publish_up') . ' IS NULL OR ' . $db->quoteName('publish_up') . ' <= :nowDate1)', '(' . $db->quoteName('publish_down') . ' IS NULL OR ' . $db->quoteName('publish_down') . ' >= :nowDate2)', ] ) ->bind(':nowDate1', $now) ->bind(':nowDate2', $now); if ($app->isClient('site') && $app->getLanguageFilter()) { $query->whereIn($db->quoteName('a.language'), [$lang->getTag(), '*'], ParameterType::STRING); } $db->setQuery($query); $list = $db->loadObjectList('id'); // This check needed if incorrect Itemid is given resulting in an incorrect result. if (!is_array($list)) { $list = []; } reset($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 positions. $row->next = $rows[$location + 1]; } if ($row->prev) { $row->prev_label = ($this->params->get('display', 0) == 0) ? Text::_('JPREV') : $row->prev->title; $row->prev = RouteHelper::getArticleRoute($row->prev->slug, $row->prev->catid, $row->prev->language); } else { $row->prev_label = ''; $row->prev = ''; } if ($row->next) { $row->next_label = ($this->params->get('display', 0) == 0) ? Text::_('JNEXT') : $row->next->title; $row->next = RouteHelper::getArticleRoute($row->next->slug, $row->next->catid, $row->next->language); } else { $row->next_label = ''; $row->next = ''; } // Output. if ($row->prev || $row->next) { // Get the path for the layout file $path = PluginHelper::getLayoutPath('content', 'pagenavigation'); // Render the pagenav ob_start(); include $path; $row->pagination = ob_get_clean(); $row->paginationposition = $this->params->get('position', 1); // This will default to the 1.5 and 1.6-1.7 behavior. $row->paginationrelative = $this->params->get('relative', 0); } } } }