source: extensions/meta/main.inc.php @ 3978

<?php
/*
Plugin Name: meta
Version: 2.0.0.c
Description: Allows to add metadata
Plugin URI: http://piwigo.org/ext/extension_view.php?eid=220
Author: ddtddt
Author URI: http://piwigo.org/
*/

if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');

global $prefixeTable;

define('meta_DIR' , basename(dirname(__FILE__)));
define('meta_PATH' , PHPWG_PLUGINS_PATH . meta_DIR . '/');
define('meta_TABLE' , $prefixeTable . 'meta');

add_event_handler('get_admin_plugin_menu_links', 'meta_admin_menu');
function meta_admin_menu($menu)
{
  array_push($menu, array(
                'NAME' => 'Meta',
    'URL' => get_admin_plugin_menu_link(meta_PATH . 'admin/admin.php')));
  return $menu;
}

//Gestion des meta dans le header
add_event_handler('loc_begin_page_header', 'add_meta' );
function add_meta()
{
  global $template, $page, $meta_infos;

  $meta_infos = array();
  $meta_infos['author'] = $template->get_template_vars('INFO_AUTHOR');
  $meta_infos['related_tags'] = $template->get_template_vars('related_tags');
  $meta_infos['info'] = $template->get_template_vars('INFO_FILE');

  $query = '
  select id,metaname,metaval
    FROM ' . meta_TABLE . '
    WHERE metaname IN (\'author\', \'keywords\', \'Description\', \'robots\')
    ;';
  $result = pwg_query($query);
  $meta = array();
  while ($row = mysql_fetch_assoc($result))
  {
    $meta[$row['metaname']] = $row['metaval'];
  }

  // Authors
  if (!empty($meta_infos['author']) and !empty($meta['author']))
  {
    $template->assign('INFO_AUTHOR', $meta_infos['author'] . ' - ' . $meta['author']);
  }
  elseif (!empty($meta['author']))
  {
    $template->assign('INFO_AUTHOR', $meta['author']);
  }
  
  // Keywords
  if (!empty($meta['keywords']))
  {
    $template->append('related_tags', array('name' => $meta['keywords']));
  }

  // Description
  if (!empty($meta_infos['info']) and !empty($meta['Description']))
  {
    $template->assign('INFO_FILE', $meta_infos['info'] . ', ' . $meta['Description']);
  }
  elseif (!empty($meta['Description']))
  {
    $template->assign('INFO_FILE', $meta['Description']);
  }

  // Robots
  if (!empty($meta['robots']))
  {
    $template->append('head_elements', '<meta name="robots" content="'.$meta['robots'].'">');
  }

  //meta categories
  if ( !empty($page['category']['name']) )   
  {
    $page['category']['info'] = get_cat_info($page['category']['id']);
    $page['category']['name'] = $page['category']['info']['name'];

    $query = '
    select id,name,metakeywords,comment
      FROM ' . CATEGORIES_TABLE . '
      WHERE id = \''.$page['category']['id'].'\'
      ;';
    $result = pwg_query($query);
    $row = mysql_fetch_array($result);
    if (!empty($row['metakeywords']))
    {
      $template->append('related_tags', array('name' => $row['metakeywords']));
    }
  }
}


add_event_handler('loc_after_page_header', 'set_meta_back');
function set_meta_back()
{
  global $template, $meta_infos;
  
  $template->assign(array(
    'INFO_AUTHOR'  => $meta_infos['author'],
    'related_tags' => $meta_infos['related_tags'],
    'INFO_FILE'    => $meta_infos['info']
    )
  );
}
?>