source: extensions/metasimple/main.inc.php @ 21122

<?php
/*
Plugin Name: metasimple
Version: auto
Description: Replaces the entire contents of the metadata "description" with the category description or pictures if any. Ability to customize the description of the home page
Plugin URI: http://piwigo.org/ext/extension_view.php?eid=456
Author: ddtddt
Author URI: http://piwigo.org/
*/

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

global $prefixeTable;

define('metasimple_DIR' , basename(dirname(__FILE__)));
define('metasimple_PATH' , PHPWG_PLUGINS_PATH . metasimple_DIR . '/');


add_event_handler('loc_begin_page_header', 'Change_Metasimple',10 );
add_event_handler('loc_end_page_header', 'add_metasimple',53);
add_event_handler('loc_end_page_header', 'add_metadescacc',55);
add_event_handler('loc_end_page_header', 'add_metadesccat',60);
add_event_handler('loc_end_page_header', 'add_metadescimg',70);
add_event_handler('loc_after_page_header', 'set_metadesc_back',80);

function Change_Metasimple()
 {
        global $template;
        $template->set_prefilter('header', 'upmatasimple');
 }

function upmatasimple ($content, &$smarty)
 {
  $search = '#<meta name="description" content=".*?">#';
  
  $replacement = '<meta name="description" content="{$PLUG_META}">';

  return preg_replace($search, $replacement, $content);
 }

function add_metasimple()
  //meta homepage
        {
                global $template, $page, $meta_infosdesc, $conf;
        $meta_infosdesc = array();
        $meta_infosdesc['info'] = $template->get_template_vars('INFO_FILE');
        $meta_infosdesc['page'] = $template->get_template_vars('PAGE_TITLE');
        $meta_infosdesc['comment'] = $template->get_template_vars('COMMENT_IMG');
        $meta_infosdesc['title'] = $template->get_template_vars('PAGE_TITLE');
          
        
        if (!empty($meta_infosdesc['title']) and !empty($meta_infosdesc['info']))
        {
    $template->assign('PLUG_META', $meta_infosdesc['title']. ' - ' .$meta_infosdesc['info']);
        }
        elseif (!empty($meta_infosdesc['title']))
        {
    $template->assign('PLUG_META', $meta_infosdesc['title']);

        }
        }

function add_metadescacc()
  //meta homepage
        {
                global $template, $page, $meta_infosdesc, $conf;
          
         if (isset($page['section']) and $page['section'] == 'categories' and empty($page['category']['id']))
                {
                        $descindex = & $conf['metasimple'];             
                        if (!empty($descindex))
                                {
                                        $template->assign('PLUG_META', $descindex);
                                }
                        else
                        {
                                $template->assign('PLUG_META', $meta_infosdesc['title']);
                        }
                }
        }

function add_metadesccat()
  //meta albums
        {
                global $template, $page, $meta_infosdesc;

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

function add_metadescimg()
  //meta photos
        {
                global $template, $page, $meta_infosdesc;
                          if ( !empty($page['image_id']) )   
                                {
    $query = '
    select id,comment
      FROM ' . IMAGES_TABLE . '
      WHERE id = \''.$page['image_id'].'\'
      ;';
    $result = pwg_query($query);
    $row = mysql_fetch_array($result);
                if (!empty($row['comment']))
                        {
                                $template->assign('PLUG_META', $row['comment']);
                        }
                                }
        }

function set_metadesc_back()
        {
                global $template, $meta_infosdesc;
  
                $template->assign
                        (array
                                (
                'INFO_FILE'    => $meta_infosdesc['info'],
                'COMMENT_IMG'    => $meta_infosdesc['comment']
                                )
                        );
        }
?>