includes/log.php
author Dan
Mon, 13 Apr 2009 16:57:20 -0400
changeset 907 44851d7e9bda
parent 905 1e40b33f2e3e
child 909 94c1ff984286
permissions -rw-r--r--
Live Re-Auth is now required for deleting pages, editing ACLs, protecting pages, and clearing logs. Committing in a hurry as a storm is coming in, hope everything is in there.
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<?php
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/*
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 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
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 * Version 1.1.6 (Caoineag beta 1)
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 * Copyright (C) 2006-2008 Dan Fuhry
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 * log.php - Logs table parsing and displaying
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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/**
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 * Front-end for showing page revisions and actions in the logs table.
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 * @package Enano
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 * @subpackage Frontend
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 * @author Dan Fuhry <dan@enanocms.org>
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 * @license GNU General Public License
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 */
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class LogDisplay
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{
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  /**
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   * Criteria for the search.
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   * Structure:
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   <code>
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   array(
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       array( 'user', 'Dan' ),
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       array( 'within', 86400 ),
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       array( 'page', 'Main_Page' )
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     )
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   </code>
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   * @var array
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   */
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  var $criteria = array();
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  /**
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   * Adds a criterion for the log display.
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   * @param string Criterion type - user, page, or within
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   * @param string Value - username, page ID, or (int) within # seconds or (string) number + suffix (suffix: d = day, w = week, m = month, y = year) ex: "1w"
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   */
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  public function add_criterion($criterion, $value)
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  {
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    switch ( $criterion )
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    {
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      case 'user':
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      case 'page':
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      case 'action':
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        $this->criteria[] = array($criterion, $value);
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        break;
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      case 'within':
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        if ( is_int($value) )
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        {
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          $this->criteria[] = array($criterion, $value);
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        }
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        else if ( is_string($value) )
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        {
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          $lastchar = substr($value, -1);
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          $amt = intval($value);
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          switch($lastchar)
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          {
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            case 'd':
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              $amt = $amt * 86400;
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              break;
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            case 'w':
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              $amt = $amt * 604800;
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              break;
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            case 'm':
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              $amt = $amt * 2592000;
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              break;
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            case 'y':
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              $amt = $amt * 31536000;
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              break;
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          }
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          $this->criteria[] = array($criterion, $amt);
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        }
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        else
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        {
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          throw new Exception('Invalid value type for within');
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        }
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        break;
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      default:
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        throw new Exception('Unknown criterion type');
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        break;
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    }
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  }
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  /**
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   * Build the necessary SQL query.
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   * @param int Optional: offset, defaults to 0
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   * @param int Optional: page size, defaults to 0; 0 = don't limit
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   */
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  public function build_sql($offset = 0, $page_size = 0, $just_page_count = false)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    $where_extra = '';
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    $where_bits = array(
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        'user' => array(),
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        'page' => array(),
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        'action' => array()
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      );
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    foreach ( $this->criteria as $criterion )
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    {
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      list($type, $value) = $criterion;
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      switch($type)
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      {
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        case 'user':
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          $where_bits['user'][] = "author = '" . $db->escape($value) . "'";
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          break;
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        case 'action':
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          $where_bits['action'][] = "action = '" . $db->escape($value) . "'";
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          break;
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        case 'page':
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          list($page_id, $namespace) = RenderMan::strToPageId($value);
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          $where_bits['page'][] = "page_id = '" . $db->escape($page_id) . "' AND namespace = '" . $db->escape($namespace) . "'";
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          break;
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        case 'within':
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          $threshold = time() - $value;
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          $where_extra .= "\n    AND time_id > $threshold";
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          break;
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      }
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    }
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    if ( !empty($where_bits['user']) )
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    {
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      $where_extra .= "\n    AND ( " . implode(" OR ", $where_bits['user']) . " )";
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    }
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    if ( !empty($where_bits['page']) )
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    {
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      $where_extra .= "\n    AND ( (" . implode(") OR (", $where_bits['page']) . ") )";
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    }
905
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    if ( !empty($where_bits['action']) )
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    {
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      $where_extra .= "\n    AND ( (" . implode(") OR (", $where_bits['action']) . ") )";
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    }
901
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    $limit = ( $page_size > 0 ) ? "\n  LIMIT $offset, $page_size" : '';
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    $columns = ( $just_page_count ) ? 'COUNT(*)' : 'log_id, action, page_id, namespace, CHAR_LENGTH(page_text) AS revision_size, author, time_id, edit_summary, minor_edit';
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    $sql = 'SELECT ' . $columns . ' FROM ' . table_prefix . "logs\n"
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         . "  WHERE log_type = 'page' AND is_draft != 1$where_extra\n"
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         . "  ORDER BY log_id DESC $limit;";
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    return $sql;
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  }
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  /**
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   * Get data!
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   * @param int Offset, defaults to 0
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   * @param int Page size, if 0 (default) returns entire table (danger Will Robinson!)
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   * @return array
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   */
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  public function get_data($offset, $page_size)
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  {
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    global $db, $session, $paths, $session, $plugins; // Common objects
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    $sql = $this->build_sql($offset, $page_size);
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    if ( !$db->sql_query($sql) )
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      $db->_die();
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    $return = array();
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    $deplist = array();
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    $idlist = array();
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    while ( $row = $db->fetchrow() )
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    {
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      $return[ $row['log_id'] ] = $row;
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      if ( $row['action'] === 'edit' )
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      {
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        // This is a page revision; its parent needs to be found
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        $pagekey = serialize(array($row['page_id'], $row['namespace']));
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        $deplist[$pagekey] = "( page_id = '" . $db->escape($row['page_id']) . "' AND namespace = '" . $db->escape($row['namespace']) . "' AND log_id < {$row['log_id']} )";
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        // if we already have a revision from this page in the dataset, we've found its parent
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        if ( isset($idlist[$pagekey]) )
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        {
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          $child =& $return[ $idlist[$pagekey] ];
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          $child['parent_size'] = $row['revision_size'];
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          $child['parent_revid'] = $row['log_id'];
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          $child['parent_time'] = $row['time_id'];
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          unset($child);
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        }
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        $idlist[$pagekey] = $row['log_id'];
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      }
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    }
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    // Second query fetches all parent revision data
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    // (maybe we have no edits?? check deplist)
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    if ( !empty($deplist) )
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    {
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      // FIXME: inefficient. damn GROUP BY for not obeying ORDER BY, it means we can't group and instead have to select
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      // all previous revisions of page X and discard all but the first one we find.
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      $where_extra = implode("\n    OR ", $deplist);
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      $sql = 'SELECT log_id, page_id, namespace, CHAR_LENGTH(page_text) AS revision_size, time_id FROM ' . table_prefix . "logs\n"
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           . "  WHERE log_type = 'page' AND action = 'edit'\n  AND ( $where_extra )\n"
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           // . "  GROUP BY page_id, namespace\n"
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           . "  ORDER BY log_id DESC;";
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      if ( !$db->sql_query($sql) )
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        $db->_die();
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      while ( $row = $db->fetchrow() )
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      {
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        $pagekey = serialize(array($row['page_id'], $row['namespace']));
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        if ( isset($idlist[$pagekey]) )
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        {
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          $child =& $return[ $idlist[$pagekey] ];
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          $child['parent_size'] = $row['revision_size'];
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          $child['parent_revid'] = $row['log_id'];
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          $child['parent_time'] = $row['time_id'];
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          unset($child, $idlist[$pagekey]);
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        }
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      }
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    }
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    // final iteration goes through all edits and if there's not info on the parent, sets to 0. It also calculates size change.
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    foreach ( $return as &$row )
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    {
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      if ( $row['action'] === 'edit' && !isset($row['parent_revid']) )
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      {
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        $row['parent_revid'] = 0;
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        $row['parent_size'] = 0;
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      }
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      if ( $row['action'] === 'edit' )
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      {
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        $row['size_delta'] = $row['revision_size'] - $row['parent_size'];
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      }
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    }
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    return array_values($return);
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  }
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  /**
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   * Get the number of rows that will be in the result set.
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   * @return int
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   */
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  public function get_row_count()
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  {
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    global $db, $session, $paths, $session, $plugins; // Common objects
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    if ( !$db->sql_query( $this->build_sql(0, 0, true) ) )
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      $db->_die();
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    list($count) = $db->fetchrow_num();
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    return $count;
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  }
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  /**
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   * Formats a result row into pretty HTML.
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   * @param array dataset from LogDisplay::get_data()
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   * @static
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   * @return string
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   256
   */
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  public static function render_row($row)
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  {
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    global $db, $session, $paths, $session, $plugins; // Common objects
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    global $lang;
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   262
    
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    $html = '';
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   264
    
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   265
    $pagekey = ( isset($paths->nslist[$row['namespace']]) ) ? $paths->nslist[$row['namespace']] . $row['page_id'] : $row['namespace'] . ':' . $row['page_id'];
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   266
    $pagekey = sanitize_page_id($pagekey);
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   267
    
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   268
    // diff button
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   269
    if ( $row['action'] == 'edit' && !empty($row['parent_revid']) )
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   270
    {
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   271
      $html .= '(';
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   272
      if ( isPage($pagekey) )
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   273
      {
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   274
        $html .= '<a href="' . makeUrlNS($row['namespace'], $row['page_id'], "do=diff&diff1={$row['parent_revid']}&diff2={$row['log_id']}", true) . '">';
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   275
      }
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      $html .= $lang->get('pagetools_rc_btn_diff');
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   277
      if ( isPage($pagekey) )
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   278
      {
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   279
        $html .= '</a>';
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   280
      }
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   281
      $html .= ') ';
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   282
    }
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   283
    
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   284
    // hist button
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   285
    $html .= '(';
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   286
    if ( isPage($pagekey) )
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   287
    {
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   288
      $html .= '<a href="' . makeUrlNS($row['namespace'], $row['page_id'], "do=history", true) . '">';
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   289
    }
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   290
    $html .= $lang->get('pagetools_rc_btn_hist');
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   291
    if ( isPage($pagekey) )
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   292
    {
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   293
      $html .= '</a>';
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   294
    }
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   295
    $html .= ') . . ';
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   296
    
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   297
    // new page?
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   298
    if ( $row['action'] == 'edit' && empty($row['parent_revid']) )
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   299
    {
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   300
      $html .= '<b>N</b> ';
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   301
    }
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   302
    
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   303
    // link to the page
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   304
    $cls = ( isPage($pagekey) ) ? '' : ' class="wikilink-nonexistent"';
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   305
    $html .= '<a href="' . makeUrlNS($row['namespace'], $row['page_id']) . '"' . $cls . '>' . htmlspecialchars(get_page_title_ns($row['page_id'], $row['namespace'])) . '</a>; ';
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   306
    
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   307
    // date
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   308
    $today = time() - ( time() % 86400 );
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   309
    $date = ( $row['time_id'] > $today ) ? '' : MemberlistFormatter::format_date($row['time_id']) . ' ';
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   310
    $date .= date('h:i:s', $row['time_id']);
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   311
    $html .= "$date . . ";
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   312
    
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   313
    // size counter
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   314
    if ( $row['action'] == 'edit' )
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   315
    {
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   316
      $css = self::get_css($row['size_delta']);
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   317
      $size_change = number_format($row['size_delta']);
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   318
      if ( substr($size_change, 0, 1) != '-' )
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   319
        $size_change = "+$size_change";
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   320
      
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   321
      $html .= "<span style=\"$css\">({$size_change})</span>";
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   322
      $html .= ' . . ';
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diff changeset
   323
    }
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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diff changeset
   324
    
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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   325
    // link to userpage
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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diff changeset
   326
    $cls = ( isPage($paths->nslist['User'] . $row['author']) ) ? '' : ' class="wikilink-nonexistent"';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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diff changeset
   327
    $rank_info = $session->get_user_rank($row['author']);
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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parents:
diff changeset
   328
    $html .= '<a style="' . $rank_info['rank_style'] . '" href="' . makeUrlNS('User', sanitize_page_id($row['author']), false, true) . '"' . $cls . '>' . htmlspecialchars($row['author']) . '</a> ';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   329
    $html .= '(';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   330
    $html .= '<a href="' . makeUrlNS('Special', 'PrivateMessages/Compose/To/' . sanitize_page_id($row['author']), false, true) . '">';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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parents:
diff changeset
   331
    $html .= $lang->get('pagetools_rc_btn_pm');
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   332
    $html .= '</a>, ';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   333
    $html .= '<a href="' . makeUrlNS('User', sanitize_page_id($row['author']), false, true) . '#do:comments">';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
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parents:
diff changeset
   334
    $html .= $lang->get('pagetools_rc_btn_usertalk');
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   335
    $html .= '</a>';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   336
    $html .= ') . . ';
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   337
    
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   338
    // Edit summary
905
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   339
    
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   340
    if ( $row['action'] == 'edit' )
901
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   341
    {
905
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   342
      $html .= '<i>(';
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   343
      if ( empty($row['edit_summary']) )
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   344
      {
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   345
        $html .= '<span style="color: #808080;">' . $lang->get('history_summary_none_given') . '</span>';
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   346
      }
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   347
      else
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   348
      {
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   349
        $html .= RenderMan::parse_internal_links(htmlspecialchars($row['edit_summary']));
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   350
      }
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   351
      $html .= ')</i>';
901
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   352
    }
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   353
    else
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   354
    {
905
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   355
      switch($row['action'])
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   356
      {
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   357
        default:
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   358
          $html .= $row['action'];
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   359
          break;
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   360
        case 'rename':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   361
          $html .= $lang->get('log_action_rename', array('old_name' => htmlspecialchars($row['edit_summary'])));
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   362
          break;
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   363
        case 'create':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   364
          $html .= $lang->get('log_action_create');
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   365
          break;
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   366
        case 'prot':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   367
        case 'unprot':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   368
        case 'semiprot':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   369
        case 'delete':
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   370
          $stringmap = array(
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   371
            'prot' => 'log_action_protect_full',
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   372
            'unprot' => 'log_action_protect_none',
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   373
            'semiprot' => 'log_action_protect_semi',
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   374
            'delete' => 'log_action_delete'
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   375
          );
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   376
        $reason = ( !empty($row['edit_summary']) ) ? htmlspecialchars($row['edit_summary']) : '<span style="color: #808080;">' . $lang->get('log_msg_no_reason_provided') . '</span>';
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   377
        
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   378
        $html .= $lang->get($stringmap[$row['action']], array('reason' => $reason));
1e40b33f2e3e Log displayer should support some actions besides edit now
Dan
parents: 901
diff changeset
   379
      }
901
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   380
    }
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   381
    
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   382
    return $html;
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   383
  }
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   384
  
99ea0b0ac4be Work started on Special:Log and associated tools/interfaces. This is far from complete, but the basic functionality is in there.
Dan
parents:
diff changeset
   385
  /**
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parents:
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   386
   * Return CSS blurb for size delta
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   387
   * @return string
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   388
   * @static
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   389
   * @access private
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   390
   */
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   391
  
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   392
  private static function get_css($change_size)
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   393
  {
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   394
    // Hardly changed at all? Return a gray
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   395
    if ( $change_size <= 5 && $change_size >= -5 )
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   396
      return 'color: #808080;';
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   397
    // determine saturation based on size of change (1-500 bytes)
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   398
    $change_abs = abs($change_size);
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   399
    $index = 0x70 * ( $change_abs / 500 );
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parents:
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   400
    if ( $index > 0x70 )
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parents:
diff changeset
   401
      $index = 0x70;
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parents:
diff changeset
   402
    $index = $index + 0x40;
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parents:
diff changeset
   403
    $index = dechex($index);
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parents:
diff changeset
   404
    if ( strlen($index) < 2 )
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parents:
diff changeset
   405
      $index = "0$index";
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parents:
diff changeset
   406
    $css = ( $change_size > 0 ) ? "color: #00{$index}00;" : "color: #{$index}0000;";
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parents:
diff changeset
   407
    if ( $change_abs > 500 )
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parents:
diff changeset
   408
      $css .= ' font-weight: bold;';
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parents:
diff changeset
   409
    return $css;
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parents:
diff changeset
   410
  }
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   411
}
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parents:
diff changeset
   412
 
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parents:
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   413
?>