Index: /trunk/admin/rating.php
===================================================================
--- /trunk/admin/rating.php	(revision 12623)
+++ /trunk/admin/rating.php	(revision 12624)
@@ -33,4 +33,12 @@
 // +-----------------------------------------------------------------------+
 check_status(ACCESS_ADMINISTRATOR);
+
+
+include_once(PHPWG_ROOT_PATH.'admin/include/tabsheet.class.php');
+$tabsheet = new tabsheet();
+$tabsheet->add('rating', l10n('Photos'), get_root_url().'admin.php?page=rating');
+$tabsheet->add('rating_user', l10n('Users'), get_root_url().'admin.php?page=rating_user');
+$tabsheet->select('rating');
+$tabsheet->assign();
 
 // +-----------------------------------------------------------------------+
Index: /trunk/admin/rating_user.php
===================================================================
--- /trunk/admin/rating_user.php	(revision 12624)
+++ /trunk/admin/rating_user.php	(revision 12624)
@@ -0,0 +1,212 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based photo gallery                                    |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2011 Piwigo Team                  http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify  |
+// | it under the terms of the GNU General Public License as published by  |
+// | the Free Software Foundation                                          |
+// |                                                                       |
+// | This program is distributed in the hope that it will be useful, but   |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
+// | General Public License for more details.                              |
+// |                                                                       |
+// | You should have received a copy of the GNU General Public License     |
+// | along with this program; if not, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+
+defined('PHPWG_ROOT_PATH') or die ("Hacking attempt!");
+
+include_once(PHPWG_ROOT_PATH.'admin/include/tabsheet.class.php');
+$tabsheet = new tabsheet();
+$tabsheet->add('rating', l10n('Photos'), get_root_url().'admin.php?page=rating');
+$tabsheet->add('rating_user', l10n('Users'), get_root_url().'admin.php?page=rating_user');
+$tabsheet->select('rating_user');
+$tabsheet->assign();
+
+$filter_min_rates = 2;
+if (isset($_GET['f_min_rates']))
+{
+  $filter_min_rates = (int)$_GET['f_min_rates'];
+}
+
+global $conf;
+$query = 'SELECT DISTINCT
+  u.'.$conf['user_fields']['id'].' AS id,
+  u.'.$conf['user_fields']['username'].' AS name,
+  ui.status
+  FROM '.USERS_TABLE.' AS u INNER JOIN '.USER_INFOS_TABLE.' AS ui
+    ON u.'.$conf['user_fields']['id'].' = ui.user_id';
+
+$users_by_id = array();
+$result = pwg_query($query);
+while ($row = pwg_db_fetch_assoc($result))
+{
+  $user = array(
+    'name' => $row['name'],
+    'anon' => is_autorize_status(ACCESS_CLASSIC, $row['status']) ? false : true
+  );
+  $users_by_id[(int)$row['id']] = $user;
+}
+
+$by_rate_model = array();
+foreach($conf['rate_items'] as $rate)
+{
+  $by_rate_model[$rate] = array();
+}
+
+
+$by_user_rating_model = array( 'rates' => $by_rate_model);
+
+$image_ids = array();
+$by_user_ratings = array();
+$query = '
+SELECT * FROM '.RATE_TABLE.' ORDER by date DESC';
+$result = pwg_query($query);
+while ($row = pwg_db_fetch_assoc($result))
+{
+
+  if (!isset($users_by_id[$row['user_id']]))
+  {
+    $users_by_id[$row['user_id']] = array('name' => '???'.$row['user_id'], 'anon' => false);
+  }
+  $user = $users_by_id[$row['user_id']];
+  if ($user['anon'])
+  {
+    $user_key = $user['name'].'('.$row['anonymous_id'].')';
+  }
+  else
+  {
+    $user_key = $user['name'];
+  }
+  $rating = & $by_user_ratings[$user_key];
+  if ( is_null($rating) )
+  {
+    $rating = $by_user_rating_model;
+    $rating['uid'] = (int)$row['user_id'];
+    $rating['aid'] = $user['anon'] ? $row['anonymous_id'] : '';
+  }
+  $rating['rates'][$row['rate']][] = array(
+    'id' => $row['element_id'],
+    'date' => $row['date'],
+  );
+  $image_ids[$row['element_id']] = 1;
+  unset($rating);
+}
+
+
+
+$image_urls = array();
+if (count($image_ids) > 0 )
+{
+  $query = 'SELECT id, name, file, path, tn_ext
+  FROM '.IMAGES_TABLE.'
+  WHERE id IN ('.implode(',', array_keys($image_ids)).')';
+  $result = pwg_query($query);
+  while ($row = pwg_db_fetch_assoc($result))
+  {
+    $image_urls[ $row['id'] ] = array(
+      'tn' => get_thumbnail_url($row),
+      'page' => make_picture_url( array('image_id'=>$row['id'], 'image_file'=>$row['file']) ),
+    );
+  }
+}
+
+foreach($by_user_ratings as $id => &$rating)
+{
+  $c=0; $s=0; $ss=0;
+  foreach($rating['rates'] as $rate => $rates)
+  {
+    $ct = count($rates);
+    $c += $ct;
+    $s += $ct * $rate;
+    $ss += $ct * $rate * $rate;
+  }
+
+  $var = ($ss - $s*$s/$c)/$c;
+  $rating += array(
+    'id' => $id,
+    'count' => $c,
+    'avg' => $s/$c,
+    'std' => sqrt($var),
+    'cv'  => $s==0 ? -1 : sqrt($var)/($s/$c), // http://en.wikipedia.org/wiki/Coefficient_of_variation
+  );
+}
+unset($rating);
+
+// filter
+foreach($by_user_ratings as $id => $rating)
+{
+  if ($rating['count'] <= $filter_min_rates)
+  {
+    unset($by_user_ratings[$id]);
+  }
+}
+
+
+function avg_compare($a, $b)
+{
+  $d = $a['avg'] - $b['avg'];
+  return ($d==0) ? 0 : ($d<0 ? -1 : 1);
+}
+
+function count_compare($a, $b)
+{
+  $d = $a['count'] - $b['count'];
+  return ($d==0) ? 0 : ($d<0 ? -1 : 1);
+}
+
+function std_compare($a, $b)
+{
+  $d = $a['std'] - $b['std'];
+  return ($d==0) ? 0 : ($d<0 ? -1 : 1);
+}
+
+function cv_compare($a, $b)
+{
+  $d = $a['cv'] - $b['cv'];
+  return ($d==0) ? 0 : ($d<0 ? -1 : 1);
+}
+
+
+$order_by_index=3;
+if (isset($_GET['order_by']) and is_numeric($_GET['order_by']))
+{
+  $order_by_index = $_GET['order_by'];
+}
+
+$available_order_by= array(
+    array(l10n('Average rate'), 'avg_compare'),
+    array(l10n('Number of rates'), 'count_compare'),
+    array('StDev', 'std_compare'),
+    array('Coeff of Variation', 'cv_compare'),
+  );
+
+for ($i=0; $i<count($available_order_by); $i++)
+{
+  $template->append(
+    'order_by_options',
+    $available_order_by[$i][0]
+    );
+}
+$template->assign('order_by_options_selected', array($order_by_index) );
+
+$x = uasort($by_user_ratings, $available_order_by[$order_by_index][1] );
+
+$template->assign( array(
+  'F_ACTION' => get_root_url().'admin.php',
+  'F_MIN_RATES' => $filter_min_rates,
+  'available_rates' => $conf['rate_items'],
+  'ratings' => $by_user_ratings,
+  'image_urls' => $image_urls,
+  ) );
+$template->set_filename('rating', 'rating_user.tpl');
+$template->assign_var_from_handle('ADMIN_CONTENT', 'rating');
+
+?>
Index: /trunk/admin/themes/default/template/rating_user.tpl
===================================================================
--- /trunk/admin/themes/default/template/rating_user.tpl	(revision 12624)
+++ /trunk/admin/themes/default/template/rating_user.tpl	(revision 12624)
@@ -0,0 +1,76 @@
+<form action="{$F_ACTION}" method="GET">
+<fieldset>
+	<label>{'Sort by'|@translate}
+		<select name="order_by">
+			{html_options options=$order_by_options selected=$order_by_options_selected}
+		</select>
+	</label>
+	<label>{'Number of rates'|@translate}&gt;
+	<input type="text" size="5" name="f_min_rates" value="{$F_MIN_RATES}">
+	</label>
+	<input type="submit" value="{'Submit'|@translate}">
+	</label>
+	<input type="hidden" name="page" value="rating_user">
+</fieldset>
+</form>
+
+{combine_script id='core.scripts' load='async' path='themes/default/js/scripts.js'}
+{footer_script}{literal}
+function del(elt,uid,aid)
+{
+	if (!confirm('{'Are you sure?'|@translate|@escape:'javascript'}'))
+		return false;
+	var tr = elt;
+	while ( tr.nodeName != "TR") tr = tr.parentNode;
+	tr = jQuery(tr).fadeTo(1000, 0.4);
+	var ws = new PwgWS({/literal}'{$ROOT_URL|@escape:javascript}'{literal});
+	ws.callService(
+		'pwg.rates.delete', {user_id:uid, anonymous_id:aid},
+		{
+			method: 'POST',
+			onFailure: function(num, text) { tr.stop(); tr.fadeTo(0,1); alert(num + " " + text); },
+			onSuccess: function(result) { if (result) {tr.remove();} else alert(result); }
+		}
+	);
+	return false;
+}
+{/literal}{/footer_script}
+<table>
+<tr class="throw">
+	<td>{'Username'|@translate}</td>
+	<td>{'Number of rates'|@translate}</td>
+	<td>{'Average rate'|@translate}</td>
+	<td>StDev</td>
+	<td>CV</td>
+{foreach from=$available_rates item=rate}
+	<td>{$rate}</td>
+{/foreach}
+	<td></td>
+</tr>
+{foreach from=$ratings item=rating key=user}
+<tr>
+	<td>{$user}</td>
+	<td>{$rating.count}</td>
+	<td>{$rating.avg|@number_format:2}</td>
+	<td>{$rating.std|@number_format:3}</td>
+	<td>{$rating.cv|@number_format:3}</td>
+	{foreach from=$rating.rates item=rates key=rate}
+	<td>{if !empty($rates)}
+		{capture assign=rate_over}{foreach from=$rates item=rate_arr}<img src="{$image_urls[$rate_arr.id].tn}" alt="thumb-{$rate_arr.id}" title="{$rate_arr.date}"></img>
+		{/foreach}{/capture}
+		<a class="cluetip" title="{$rate_over|@htmlspecialchars}">{$rates|@count}</a>
+		{/if}</td>
+	{/foreach}
+	<td><a onclick="return del(this,{$rating.uid},'{$rating.aid}');"><img src="{$themeconf.admin_icon_dir}/delete.png" alt="[{'Delete'|@translate}]"></a></td>
+</tr>
+{/foreach}
+</table>
+
+{combine_script id='jquery.cluetip' load='footer' require='jquery' path='themes/default/js/plugins/jquery.cluetip.js'}
+{footer_script require='jquery.cluetip'}
+{literal}
+	jQuery('.cluetip').cluetip({
+		width: 350,	splitTitle: '|'
+	});
+{/literal}
+{/footer_script}
Index: /trunk/include/calendar_base.class.php
===================================================================
--- /trunk/include/calendar_base.class.php	(revision 12623)
+++ /trunk/include/calendar_base.class.php	(revision 12624)
@@ -216,7 +216,5 @@
 $this->inner_sql.
 $this->get_date_where($level).'
-  GROUP BY period 
-  ORDER BY period ASC
-;';
+  GROUP BY period;';
 
     $level_items = simple_hash_from_query($query, 'period', 'nb_images');
Index: /trunk/include/ws_functions.inc.php
===================================================================
--- /trunk/include/ws_functions.inc.php	(revision 12623)
+++ /trunk/include/ws_functions.inc.php	(revision 12624)
@@ -1884,4 +1884,43 @@
 }
 
+function ws_rates_delete($params, &$service)
+{
+  global $conf;
+
+  if (!$service->isPost())
+  {
+    return new PwgError(405, 'This method requires HTTP POST');
+  }
+
+  if (!is_admin())
+  {
+    return new PwgError(401, 'Access denied');
+  }
+
+  $user_id = (int)$params['user_id'];
+  if ($user_id<=0)
+  {
+    return new PwgError(WS_ERR_INVALID_PARAM, 'Invalid user_id');
+  }
+  
+  $query = '
+DELETE FROM '.RATE_TABLE.'
+  WHERE user_id='.$user_id;
+  
+  if (!empty($params['anonymous_id']))
+  {
+    $query .= ' AND anonymous_id=\''.$params['anonymous_id'].'\'';
+  }
+  
+  $changes = pwg_db_changes(pwg_query($query));
+  if ($changes)
+  {
+    include_once(PHPWG_ROOT_PATH.'include/functions_rate.inc.php');
+    update_rating_score();
+  }
+  return $changes;
+}
+
+
 /**
  * perform a login (web service method)
Index: /trunk/ws.php
===================================================================
--- /trunk/ws.php	(revision 12623)
+++ /trunk/ws.php	(revision 12624)
@@ -155,5 +155,14 @@
     'sets the rank of a photo for a given album (POST method only, for admins)'
     );
-  
+
+
+  $service->addMethod('pwg.rates.delete', 'ws_rates_delete',
+    array(
+      'user_id' => array(),
+      'anonymous_id' => array( 'default'=>'' ),
+      ),
+    'deletes all rates for a user (POST method only, admins only)'
+    );
+    
   $service->addMethod('pwg.session.getStatus', 'ws_session_getStatus', null, '' );
   $service->addMethod('pwg.session.login', 'ws_session_login',
