Modification: new data model for history, more compact, more efficient. A

summary table is used as cache for history stats display.

New: a Perl script fill_history.pl was added to simulate a high load on
history table (making the efficiency of the new data model obvious).

Modification: function prepend_append_array_items moved from
include/functions_search.inc.php to include/functions_search.inc.php since
this function is used in new file admin/history.php

Modification: admin/images/*_stats.img.php replaced by a simpler and more
generic admin/images/stats.img.php unique file.

New: a history detail search page was added. Currently, only start and end
dates can be modified, it's just a beginning.


git-svn-id: http://piwigo.org/svn/trunk@1727 68402e56-0260-453c-a942-63ccdbb3a9ee

7 files changed, 1036 insertions, 613 deletions

diff --git a/admin.php b/admin.php
index b284be0a8..73b5ebb9a 100644
--- a/admin.php
+++ b/admin.php
@@ -82,7 +82,8 @@ $template->set_filenames(array('admin' => 'admin.tpl'));
 $template->assign_vars(
   array(
     'U_SITE_MANAGER'=> $link_start.'site_manager',
-    'U_HISTORY'=> $link_start.'stats',
+    'U_HISTORY_STAT'=> $link_start.'stats',
+    'U_HISTORY_SEARCH'=> $link_start.'history',
     'U_FAQ'=> $link_start.'help',
     'U_SITES'=> $link_start.'remote_site',
     'U_MAINTENANCE'=> $link_start.'maintenance',
diff --git a/admin/history.php b/admin/history.php
new file mode 100644
index 000000000..aa2405ae5
--- /dev/null
+++ b/admin/history.php
@@ -0,0 +1,388 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | PhpWebGallery - a PHP based picture gallery                           |
+// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
+// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
+// +-----------------------------------------------------------------------+
+// | branch        : BSF (Best So Far)
+// | file          : $RCSfile$
+// | last update   : $Date: 2006-11-29 05:18:11 +0100 (mer, 29 nov 2006) $
+// | last modifier : $Author: rvelices $
+// | revision      : $Revision: 1620 $
+// +-----------------------------------------------------------------------+
+// | 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.                                                                  |
+// +-----------------------------------------------------------------------+
+
+/**
+ * Display filtered history lines
+ */
+
+// echo '<pre>$_POST:
+// '; print_r($_POST); echo '</pre>';
+// echo '<pre>$_GET:
+// '; print_r($_GET); echo '</pre>';
+
+// +-----------------------------------------------------------------------+
+// |                              functions                                |
+// +-----------------------------------------------------------------------+
+
+// +-----------------------------------------------------------------------+
+// |                           initialization                              |
+// +-----------------------------------------------------------------------+
+
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+
+if (isset($_GET['start']) and is_numeric($_GET['start']))
+{
+  $page['start'] = $_GET['start'];
+}
+else
+{
+  $page['start'] = 0;
+}
+
+// +-----------------------------------------------------------------------+
+// | Check Access and exit when user status is not ok                      |
+// +-----------------------------------------------------------------------+
+
+check_status(ACCESS_ADMINISTRATOR);
+
+// +-----------------------------------------------------------------------+
+// | Build search criteria and redirect to results                         |
+// +-----------------------------------------------------------------------+
+
+$errors = array();
+$search = array();
+
+if (isset($_POST['submit']))
+{
+  // dates
+  if (!empty($_POST['start_year']))
+  {
+    $search['fields']['date-after'] = sprintf(
+      '%d-%02d-%02d',
+      $_POST['start_year'],
+      $_POST['start_month'],
+      $_POST['start_day']
+      );
+  }
+
+  if (!empty($_POST['end_year']))
+  {
+    $search['fields']['date-before'] = sprintf(
+      '%d-%02d-%02d',
+      $_POST['end_year'],
+      $_POST['end_month'],
+      $_POST['end_day']
+      );
+  }
+
+  // echo '<pre>'; print_r($search); echo '</pre>';
+  
+  if (!empty($search))
+  {
+    // register search rules in database, then they will be available on
+    // thumbnails page and picture page.
+    $query ='
+INSERT INTO '.SEARCH_TABLE.'
+  (rules)
+  VALUES
+  (\''.serialize($search).'\')
+;';
+    pwg_query($query);
+
+    $search_id = mysql_insert_id();
+    
+    redirect(
+      PHPWG_ROOT_PATH.'admin.php?page=history&search_id='.$search_id
+      );
+  }
+  else
+  {
+    array_push($errors, $lang['search_one_clause_at_least']);
+  }
+}
+
+// +-----------------------------------------------------------------------+
+// |                             template init                             |
+// +-----------------------------------------------------------------------+
+
+$template->set_filenames(array('history'=>'admin/history.tpl'));
+
+$base_url = PHPWG_ROOT_PATH.'admin.php?page=history';
+
+$template->assign_vars(
+  array(
+    'U_HELP' => PHPWG_ROOT_PATH.'popuphelp.php?page=history',
+
+    'F_ACTION' => PHPWG_ROOT_PATH.'admin.php?page=history'
+    )
+  );
+
+$template->assign_vars(
+  array(
+    'TODAY_DAY'   => date('d', time()),
+    'TODAY_MONTH' => date('m', time()),
+    'TODAY_YEAR'  => date('Y', time()),
+    )
+  );
+
+// +-----------------------------------------------------------------------+
+// |                             history lines                             |
+// +-----------------------------------------------------------------------+
+
+if (isset($_GET['search_id'])
+    and $page['search_id'] = (int)$_GET['search_id'])
+{
+  // what are the lines to display in reality ?
+  $query = '
+SELECT rules
+  FROM '.SEARCH_TABLE.'
+  WHERE id = '.$page['search_id'].'
+;';
+  list($serialized_rules) = mysql_fetch_row(pwg_query($query));
+
+  $page['search'] = unserialize($serialized_rules);
+
+  // echo '<pre>'; print_r($page['search']); echo '</pre>';
+  
+  $clauses = array();
+
+  if (isset($page['search']['fields']['date-after']))
+  {
+    array_push(
+      $clauses,
+      "date >= '".$page['search']['fields']['date-after']."'"
+      );
+  }
+
+  if (isset($page['search']['fields']['date-before']))
+  {
+    array_push(
+      $clauses,
+      "date <= '".$page['search']['fields']['date-before']."'"
+      );
+  }
+
+  $clauses = prepend_append_array_items($clauses, '(', ')');
+
+  $where_separator =
+    implode(
+      "\n    AND ",
+      $clauses
+      );
+  
+  $query = '
+SELECT COUNT(*)
+  FROM '.HISTORY_TABLE.'
+  WHERE '.$where_separator.'
+';
+
+  list($page['nb_lines']) = mysql_fetch_row(pwg_query($query));
+
+  $query = '
+SELECT date, time, user_id, IP, section, category_id, tag_ids, image_id
+  FROM '.HISTORY_TABLE.'
+  WHERE '.$where_separator.'
+  LIMIT '.$page['start'].', '.$conf['nb_logs_page'].'
+;';
+
+  $result = pwg_query($query);
+  $history_lines = array();
+  while ($row = mysql_fetch_array($result))
+  {
+    $user_ids[$row['user_id']] = 1;
+
+    if (isset($row['category_id']))
+    {
+      $category_ids[$row['category_id']] = 1;
+    }
+
+    if (isset($row['image_id']))
+    {
+      $image_ids[$row['image_id']] = 1;
+    }
+
+    array_push(
+      $history_lines,
+      $row
+      );
+  }
+
+  // prepare reference data (users, tags, categories...)
+  if (count($user_ids) > 0)
+  {
+    $query = '
+SELECT '.$conf['user_fields']['id'].' AS id
+     , '.$conf['user_fields']['username'].' AS username
+  FROM '.USERS_TABLE.'
+  WHERE id IN ('.implode(',', array_keys($user_ids)).')
+;';
+    $result = pwg_query($query);
+
+    $username_of = array();
+    while ($row = mysql_fetch_array($result))
+    {
+      $username_of[$row['id']] = $row['username'];
+    }
+  }
+
+  if (count($category_ids) > 0)
+  {
+    $query = '
+SELECT id, uppercats
+  FROM '.CATEGORIES_TABLE.'
+  WHERE id IN ('.implode(',', array_keys($category_ids)).')
+;';
+    $uppercats_of = simple_hash_from_query($query, 'id', 'uppercats');
+
+    $name_of_category = array();
+    
+    foreach ($uppercats_of as $category_id => $uppercats)
+    {
+      $name_of_category[$category_id] = get_cat_display_name_cache(
+        $uppercats
+        );
+    }
+  }
+
+  if (count($image_ids) > 0)
+  {
+    $query = '
+SELECT id, IF(name IS NULL, file, name) AS label
+  FROM '.IMAGES_TABLE.'
+  WHERE id IN ('.implode(',', array_keys($image_ids)).')
+;';
+    $label_of_image = simple_hash_from_query($query, 'id', 'label');
+  }
+  
+  $i = 0;
+
+  foreach ($history_lines as $line)
+  {
+    $template->assign_block_vars(
+      'detail',
+      array(
+        'DATE'      => $line['date'],
+        'TIME'      => $line['time'],
+        'USER'      => isset($username_of[$line['user_id']])
+          ? $username_of[$line['user_id']]
+          : $line['user_id']
+        ,
+        'IP'        => $line['IP'],
+        'IMAGE'     => isset($line['image_id'])
+          ? $label_of_image[$line['image_id']]
+          : $line['image_id'],
+        'SECTION'   => $line['section'],
+        'CATEGORY'  => isset($line['category_id'])
+          ? $name_of_category[$line['category_id']]
+          : '',
+        'TAG'       => $line['tag_ids'],
+        'T_CLASS'   => ($i++ % 2) ? 'row1' : 'row2',
+        )
+      );
+  }
+}
+
+// $groups_string = preg_replace(
+//     '/(\d+)/e',
+//     "\$groups['$1']",
+//     implode(
+//       ', ',
+//       $local_user['groups']
+//       )
+//     );
+
+// +-----------------------------------------------------------------------+
+// |                            navigation bar                             |
+// +-----------------------------------------------------------------------+
+
+if (isset($page['search_id']))
+{
+  $navbar = create_navigation_bar(
+    PHPWG_ROOT_PATH.'admin.php'.get_query_string_diff(array('start')),
+    $page['nb_lines'],
+    $page['start'],
+    $conf['nb_logs_page']
+    );
+
+  $template->assign_block_vars(
+    'navigation',
+    array(
+      'NAVBAR' => $navbar
+      )
+    );
+}
+
+// +-----------------------------------------------------------------------+
+// |                             filter form                               |
+// +-----------------------------------------------------------------------+
+
+$form = array();
+
+if (isset($page['search']))
+{
+  if (isset($page['search']['fields']['date-after']))
+  {
+    $tokens = explode('-', $page['search']['fields']['date-after']);
+    
+    $form['start_year']  = (int)$tokens[0];
+    $form['start_month'] = (int)$tokens[1];
+    $form['start_day']   = (int)$tokens[2];
+  }
+
+  if (isset($page['search']['fields']['date-before']))
+  {
+    $tokens = explode('-', $page['search']['fields']['date-before']);
+    
+     (int)$tokens[0];
+     (int)$tokens[1];
+     (int)$tokens[2];
+  }
+}
+else
+{
+  // by default, at page load, we want the selected date to be the current
+  // date
+  $form['start_year']  = $form['end_year']  = date('Y');
+  $form['start_month'] = $form['end_month'] = date('n');
+  $form['start_day']   = $form['end_day']   = date('j');
+}
+
+// start date
+get_day_list('start_day', @$form['start_day']);
+get_month_list('start_month', @$form['start_month']);
+// end date
+get_day_list('end_day', @$form['end_day']);
+get_month_list('end_month', @$form['end_month']);
+
+$template->assign_vars(
+  array(
+    'START_YEAR' => @$form['start_year'],
+    'END_YEAR'   => @$form['end_year'],
+    )
+  );
+  
+// +-----------------------------------------------------------------------+
+// |                           html code display                           |
+// +-----------------------------------------------------------------------+
+
+$template->assign_var_from_handle('ADMIN_CONTENT', 'history');
+?>
diff --git a/admin/images/daily_stats.img.php b/admin/images/daily_stats.img.php
deleted file mode 100644
index e5d320e86..000000000
--- a/admin/images/daily_stats.img.php
+++ /dev/null
@@ -1,126 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | PhpWebGallery - a PHP based picture gallery                           |
-// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
-// +-----------------------------------------------------------------------+
-// | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
-// | last update   : $Date$
-// | last modifier : $Author$
-// | revision      : $Revision$
-// +-----------------------------------------------------------------------+
-// | 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.                                                                  |
-// +-----------------------------------------------------------------------+
-//----------------------------------------------------------- include
-define('PHPWG_ROOT_PATH','../../');
-define('IN_ADMIN', true);
-include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );
-include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
-include_once( 'phpBarGraph.php' );
-
-// +-----------------------------------------------------------------------+
-// | Check Access and exit when user status is not ok                      |
-// +-----------------------------------------------------------------------+
-check_status(ACCESS_ADMINISTRATOR);
-
-//------------------------------------------------ variable definition
-$outputFormat = "png";
-$legend = $lang['stats_daily_graph_title'];
-$imageHeight = 256;
-$imageWidth = 512;
-$sql = '
-SELECT DISTINCT COUNT(*)
-     , HOUR(DATE_FORMAT(date, \'%H:%i:%s\'))
-  FROM '.HISTORY_TABLE.'
-  WHERE YEAR(date) = '.$_GET['year'].'
-    AND MONTH(date) = '.$_GET['month'].'
-    AND DAYOFMONTH(date) = '.$_GET['day'].'
-  GROUP BY DATE_FORMAT(date, \'%H\') DESC;';
-
-//------------------------------------------------ Image definition
-$image = ImageCreate($imageWidth, $imageHeight);
-//$image = ImageCreateTrueColor($imageWidth, $imageHeight);
-// Fill it with your favorite background color..
-$backgroundColor = ImageColorAllocate($image, 184, 184, 184);
-ImageFill($image, 0, 0, $backgroundColor);
-$white = ImageColorAllocate($image, 0, 0, 0);
-
-// Interlace the image..
-Imageinterlace($image, 1);
-
-// Create a new BarGraph..
-$myBarGraph = new PhpBarGraph;
-$myBarGraph->SetX(10);              // Set the starting x position
-$myBarGraph->SetY(10);              // Set the starting y position
-$myBarGraph->SetWidth($imageWidth-20);    // Set how wide the bargraph will be
-$myBarGraph->SetHeight($imageHeight-20);  // Set how tall the bargraph will be
-$myBarGraph->SetNumOfValueTicks(3); // Set this to zero if you don't want to show any. These are the vertical bars to help see the values.
-
-
-// You can try uncommenting these lines below for different looks.
-
-// $myBarGraph->SetShowLabels(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the labels of each bar.
-$myBarGraph->SetShowValues(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the values of each bar.
-// $myBarGraph->SetBarBorder(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the border of each bar.
-// $myBarGraph->SetShowFade(false);    // The default is true. Setting this to false will cause phpBarGraph to not print each bar as a gradient.
-// $myBarGraph->SetShowOuterBox(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the outside box.
-$myBarGraph->SetBarSpacing(5);     // The default is 10. This changes the space inbetween each bar.
-
-
-// Add Values to the bargraph..
-$result = pwg_query($sql)
-or die(mysql_errno().": ".mysql_error()."<BR>".$sql);
-
-$hours = array();
-for ($i = 0; $i <= 23; $i++)
-{
-  $hours[$i] = 0;
-}
-
-while ($r = mysql_fetch_row($result))
-{ 
-  $hours[$r[1]]= $r[0];
-}
-$o=0;
-while (list ($key,$value) = each($hours ))
-{
-  $myBarGraph->AddValue($key, $value);
-}
-
-//$myBarGraph->SetDebug(true);
-// Set the colors of the bargraph..
-$myBarGraph->SetStartBarColor("6666ff");  // This is the color on the top of every bar.
-$myBarGraph->SetEndBarColor("2222aa");    // This is the color on the bottom of every bar. This is not used when SetShowFade() is set to false.
-$myBarGraph->SetLineColor("000000");      // This is the color all the lines and text are printed out with.
-
-// Print the BarGraph to the image..
-$myBarGraph->DrawBarGraph($image);
-Imagestring($image, 2, 2, $imageHeight-14, $legend, $white);
-   
-//------------------------------------------------ Image output
-if ($outputFormat == "png")
-{
-  header("Content-type: image/png");
-  ImagePNG($image);
-}
-else if (in_array($outputFormat, array("jpg", "jpeg")))
-{
-  header("Content-type: image/jpeg");
-  Imagejpeg($image);
-}
-// Destroy the image.
-Imagedestroy($image);
-?> 
diff --git a/admin/images/global_stats.img.php b/admin/images/global_stats.img.php
deleted file mode 100644
index 557067e42..000000000
--- a/admin/images/global_stats.img.php
+++ /dev/null
@@ -1,126 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | PhpWebGallery - a PHP based picture gallery                           |
-// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
-// +-----------------------------------------------------------------------+
-// | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
-// | last update   : $Date$
-// | last modifier : $Author$
-// | revision      : $Revision$
-// +-----------------------------------------------------------------------+
-// | 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.                                                                  |
-// +-----------------------------------------------------------------------+
-//----------------------------------------------------------- include
-define('PHPWG_ROOT_PATH','../../');
-define('IN_ADMIN', true);
-include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );
-include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
-include_once( 'phpBarGraph.php' );
-
-// +-----------------------------------------------------------------------+
-// | Check Access and exit when user status is not ok                      |
-// +-----------------------------------------------------------------------+
-check_status(ACCESS_ADMINISTRATOR);
-
-//------------------------------------------------ variable definition
-$outputFormat = "png";
-$legend = $lang['stats_global_graph_title'];
-$imageHeight = 256;
-$imageWidth = 320;
-$sql = "SELECT DISTINCT COUNT(*), MONTH(date) 
-  FROM ".HISTORY_TABLE." 
-  WHERE (date > DATE_SUB(CURRENT_DATE(), INTERVAL 12 MONTH)) 
-  GROUP BY DATE_FORMAT(date,'%Y-%m') DESC;";
-
-//------------------------------------------------ Image definition
-$image = ImageCreate($imageWidth, $imageHeight);
-//$image = ImageCreateTrueColor($imageWidth, $imageHeight);
-// Fill it with your favorite background color..
-$backgroundColor = ImageColorAllocate($image, 184, 184, 184);
-ImageFill($image, 0, 0, $backgroundColor);
-$white = ImageColorAllocate($image, 0, 0, 0);
-
-// Interlace the image..
-Imageinterlace($image, 1);
-
-// Create a new BarGraph..
-$myBarGraph = new PhpBarGraph;
-$myBarGraph->SetX(10);              // Set the starting x position
-$myBarGraph->SetY(10);              // Set the starting y position
-$myBarGraph->SetWidth($imageWidth-20);    // Set how wide the bargraph will be
-$myBarGraph->SetHeight($imageHeight-20);  // Set how tall the bargraph will be
-$myBarGraph->SetNumOfValueTicks(3); // Set this to zero if you don't want to show any. These are the vertical bars to help see the values.
-
-
-// You can try uncommenting these lines below for different looks.
-
-// $myBarGraph->SetShowLabels(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the labels of each bar.
- $myBarGraph->SetShowValues(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the values of each bar.
-// $myBarGraph->SetBarBorder(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the border of each bar.
-// $myBarGraph->SetShowFade(false);    // The default is true. Setting this to false will cause phpBarGraph to not print each bar as a gradient.
-// $myBarGraph->SetShowOuterBox(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the outside box.
-$myBarGraph->SetBarSpacing(5);     // The default is 10. This changes the space inbetween each bar.
-
-
-// Add Values to the bargraph..
-$result = pwg_query($sql)
-or die(mysql_errno().": ".mysql_error()."<BR>".$sql);
-
-//$monthes =array_fill(1,12,0);
-$monthes =array();
-$date = getdate();
-$current_month = $date['mon'];
-for ($i=0;$i<12;$i++)
-{
-  $monthes[(($current_month-$i+11)%12)+1]=0;
-}
-
-while ($r = mysql_fetch_row($result))
-{ 
-  if (!$monthes[$r[1]]) $monthes[$r[1]]= $r[0];
-}
-$monthes = array_reverse($monthes,true);
-while (list ($key,$value) = each($monthes))
-{
-  $nls_key = substr($lang['month'][$key],0,3);
-  $myBarGraph->AddValue($nls_key, $value);
-}
-
-//$myBarGraph->SetDebug(true);
-// Set the colors of the bargraph..
-$myBarGraph->SetStartBarColor("6666ff");  // This is the color on the top of every bar.
-$myBarGraph->SetEndBarColor("2222aa");    // This is the color on the bottom of every bar. This is not used when SetShowFade() is set to false.
-$myBarGraph->SetLineColor("000000");      // This is the color all the lines and text are printed out with.
-
-// Print the BarGraph to the image..
-$myBarGraph->DrawBarGraph($image);
-Imagestring($image, 2, 2, $imageHeight-14, $legend, $white);
-   
-//------------------------------------------------ Image output
-if ($outputFormat == "png")
-{
-  header("Content-type: image/png");
-  ImagePNG($image);
-}
-else if (in_array($outputFormat, array("jpg", "jpeg")))
-{
-  header("Content-type: image/jpeg");
-  Imagejpeg($image);
-}
-// Destroy the image.
-Imagedestroy($image);
-?> 
\ No newline at end of file
diff --git a/admin/images/monthly_stats.img.php b/admin/images/monthly_stats.img.php
deleted file mode 100644
index 5ad3b0f55..000000000
--- a/admin/images/monthly_stats.img.php
+++ /dev/null
@@ -1,126 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | PhpWebGallery - a PHP based picture gallery                           |
-// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
-// +-----------------------------------------------------------------------+
-// | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
-// | last update   : $Date$
-// | last modifier : $Author$
-// | revision      : $Revision$
-// +-----------------------------------------------------------------------+
-// | 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.                                                                  |
-// +-----------------------------------------------------------------------+
-//----------------------------------------------------------- include
-define('PHPWG_ROOT_PATH','../../');
-define('IN_ADMIN', true);
-include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );
-include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
-include_once( 'phpBarGraph.php' );
-
-// +-----------------------------------------------------------------------+
-// | Check Access and exit when user status is not ok                      |
-// +-----------------------------------------------------------------------+
-check_status(ACCESS_ADMINISTRATOR);
-
-//------------------------------------------------ variable definition
-$outputFormat = "png";
-$legend = $lang['stats_monthly_graph_title'];
-$imageHeight = 256;
-$imageWidth = 512;
-$sql = '
-SELECT DISTINCT COUNT(*)
-     , DAYOFMONTH(date) 
-  FROM '.HISTORY_TABLE.'
-  WHERE YEAR(date) = '.$_GET['year'].'
-    AND MONTH(date) = '.$_GET['month'].'
-  GROUP BY DATE_FORMAT(date, \'%Y-%m-%d\') DESC
-;';
-
-//------------------------------------------------ Image definition
-$image = ImageCreate($imageWidth, $imageHeight);
-//$image = ImageCreateTrueColor($imageWidth, $imageHeight);
-// Fill it with your favorite background color..
-$backgroundColor = ImageColorAllocate($image, 184, 184, 184);
-ImageFill($image, 0, 0, $backgroundColor);
-$white = ImageColorAllocate($image, 0, 0, 0);
-
-// Interlace the image..
-Imageinterlace($image, 1);
-
-// Create a new BarGraph..
-$myBarGraph = new PhpBarGraph;
-$myBarGraph->SetX(10);              // Set the starting x position
-$myBarGraph->SetY(10);              // Set the starting y position
-$myBarGraph->SetWidth($imageWidth-20);    // Set how wide the bargraph will be
-$myBarGraph->SetHeight($imageHeight-20);  // Set how tall the bargraph will be
-$myBarGraph->SetNumOfValueTicks(3); // Set this to zero if you don't want to show any. These are the vertical bars to help see the values.
-
-
-// You can try uncommenting these lines below for different looks.
-
-// $myBarGraph->SetShowLabels(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the labels of each bar.
-$myBarGraph->SetShowValues(false);  // The default is true. Setting this to false will cause phpBarGraph to not print the values of each bar.
-// $myBarGraph->SetBarBorder(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the border of each bar.
-// $myBarGraph->SetShowFade(false);    // The default is true. Setting this to false will cause phpBarGraph to not print each bar as a gradient.
-// $myBarGraph->SetShowOuterBox(false);   // The default is true. Setting this to false will cause phpBarGraph to not print the outside box.
-$myBarGraph->SetBarSpacing(5);     // The default is 10. This changes the space inbetween each bar.
-
-
-// Add Values to the bargraph..
-$result = pwg_query($sql)
-or die(mysql_errno().": ".mysql_error()."<BR>".$sql);
-
-$days = array();
-for ($i = 1; $i <= 31; $i++)
-{
-  $days[$i] = 0;
-}
-
-while ($r = mysql_fetch_row($result))
-{ 
-  $days[$r[1]]= $r[0];
-}
-$o=0;
-while (list ($key,$value) = each($days ))
-{
-  $myBarGraph->AddValue($key, $value);
-}
-
-//$myBarGraph->SetDebug(true);
-// Set the colors of the bargraph..
-$myBarGraph->SetStartBarColor("6666ff");  // This is the color on the top of every bar.
-$myBarGraph->SetEndBarColor("2222aa");    // This is the color on the bottom of every bar. This is not used when SetShowFade() is set to false.
-$myBarGraph->SetLineColor("000000");      // This is the color all the lines and text are printed out with.
-
-// Print the BarGraph to the image..
-$myBarGraph->DrawBarGraph($image);
-Imagestring($image, 2, 2, $imageHeight-14, $legend, $white);
-   
-//------------------------------------------------ Image output
-if ($outputFormat == "png")
-{
-  header("Content-type: image/png");
-  ImagePNG($image);
-}
-else if (in_array($outputFormat, array("jpg", "jpeg")))
-{
-  header("Content-type: image/jpeg");
-  Imagejpeg($image);
-}
-// Destroy the image.
-Imagedestroy($image);
-?> 
\ No newline at end of file
diff --git a/admin/images/stats.img.php b/admin/images/stats.img.php
new file mode 100644
index 000000000..7a9d676a8
--- /dev/null
+++ b/admin/images/stats.img.php
@@ -0,0 +1,241 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | PhpWebGallery - a PHP based picture gallery                           |
+// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
+// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
+// +-----------------------------------------------------------------------+
+// | branch        : BSF (Best So Far)
+// | file          : $RCSfile$
+// | last update   : $Date: 2006-12-04 23:08:35 +0100 (lun, 04 déc 2006) $
+// | last modifier : $Author: rub $
+// | revision      : $Revision: 1635 $
+// +-----------------------------------------------------------------------+
+// | 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.                                                                  |
+// +-----------------------------------------------------------------------+
+//----------------------------------------------------------- include
+define('PHPWG_ROOT_PATH','../../');
+define('IN_ADMIN', true);
+include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );
+include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+include_once( 'phpBarGraph.php' );
+
+// +-----------------------------------------------------------------------+
+// | Check Access and exit when user status is not ok                      |
+// +-----------------------------------------------------------------------+
+check_status(ACCESS_ADMINISTRATOR);
+
+//------------------------------------------------ variable definition
+$outputFormat = "png";
+$legend = $lang['stats_global_graph_title'];
+$imageHeight = 256;
+$imageWidth = 500;
+
+foreach (array('day', 'month', 'year') as $key)
+{
+  if (isset($_GET[$key]))
+  {
+    $page[$key] = (int)$_GET[$key];
+  }
+}
+
+if (isset($page['day']))
+{
+  if (!isset($page['month']))
+  {
+    die('[stats.img.php] month is missing in URL');
+  }
+}
+
+if (isset($page['month']))
+{
+  if (!isset($page['year']))
+  {
+    die('[stats.img.php] year is missing in URL');
+  }
+}
+
+$query = '
+SELECT
+  nb_pages AS y,';
+
+$min_x = null;
+$max_x = null;
+
+if (isset($page['day']))
+{
+  $query.= '
+  hour AS x
+  FROM '.HISTORY_SUMMARY_TABLE.'
+  WHERE year = '.$page['year'].'
+    AND month = '.$page['month'].'
+    AND day = '.$page['day'].'
+    AND hour IS NOT NULL
+  ORDER BY hour ASC
+';
+
+  $min_x = 0;
+  $max_x = 23;
+}
+elseif (isset($page['month']))
+{
+  $query.= '
+  day AS x
+  FROM '.HISTORY_SUMMARY_TABLE.'
+  WHERE year = '.$page['year'].'
+    AND month = '.$page['month'].'
+    AND day IS NOT NULL
+    AND hour IS NULL
+  ORDER BY day ASC
+';
+
+  $min_x = 1;
+  $max_x = 31;
+}
+elseif (isset($page['year']))
+{
+  $query.= '
+  month AS x
+  FROM '.HISTORY_SUMMARY_TABLE.'
+  WHERE year = '.$page['year'].'
+    AND month IS NOT NULL
+    AND day IS NULL
+  ORDER BY month ASC
+';
+
+  $min_x = 1;
+  $max_x = 12;
+}
+else
+{
+  $query.= '
+  year AS x
+  FROM '.HISTORY_SUMMARY_TABLE.'
+  WHERE year IS NOT NULL
+    AND month IS NULL
+  ORDER BY year ASC
+';
+}
+
+//------------------------------------------------ Image definition
+$image = ImageCreate($imageWidth, $imageHeight);
+
+// Fill it with your favorite background color..
+$backgroundColor = ImageColorAllocate($image, 184, 184, 184);
+ImageFill($image, 0, 0, $backgroundColor);
+$white = ImageColorAllocate($image, 0, 0, 0);
+
+// Interlace the image..
+Imageinterlace($image, 1);
+
+// Create a new BarGraph..
+$myBarGraph = new PhpBarGraph;
+
+// Set the starting x position
+$myBarGraph->SetX(10);
+
+// Set the starting y position
+$myBarGraph->SetY(10);
+
+// Set how wide the bargraph will be
+$myBarGraph->SetWidth($imageWidth-20);
+
+// Set how tall the bargraph will be
+$myBarGraph->SetHeight($imageHeight-20);
+
+// Set this to zero if you don't want to show any. These are the vertical
+// bars to help see the values.
+// $myBarGraph->SetNumOfValueTicks(3);
+
+
+// You can try uncommenting these lines below for different looks.
+//
+// The default is true. Setting this to false will cause phpBarGraph to not
+// print the labels of each bar.
+$myBarGraph->SetShowLabels(true);
+
+// The default is true. Setting this to false will cause phpBarGraph to not
+// print the values of each bar.
+$myBarGraph->SetShowValues(false);
+
+// The default is true. Setting this to false will cause phpBarGraph to not
+// print the border of each bar.
+$myBarGraph->SetBarBorder(true);
+
+// The default is true. Setting this to false will cause phpBarGraph to not
+// print each bar as a gradient.
+$myBarGraph->SetShowFade(true);
+
+// The default is true. Setting this to false will cause phpBarGraph to not
+// print the outside box.
+$myBarGraph->SetShowOuterBox(true);
+
+// The default is 10. This changes the space inbetween each bar.
+$myBarGraph->SetBarSpacing(5);
+
+
+// Add Values to the bargraph..
+$result = pwg_query($query);
+$datas = array();
+while ($row = mysql_fetch_array($result))
+{
+  $datas[$row['x']] = $row['y'];
+}
+
+if (!isset($min_x) and !isset($max_x))
+{
+  $min_x = min(array_keys($datas));
+  $max_x = max(array_keys($datas));
+}
+
+for ($i = $min_x; $i <= $max_x; $i++)
+{
+  if (!isset($datas[$i]))
+  {
+    $datas[$i] = 0;
+  }
+
+  $myBarGraph->AddValue($i, $datas[$i]);
+}
+
+// Set the colors of the bargraph..
+//
+// This is the color on the top of every bar.
+$myBarGraph->SetStartBarColor("6666ff");
+
+// This is the color on the bottom of every bar. This is not used when
+// SetShowFade() is set to false.
+$myBarGraph->SetEndBarColor("2222aa");
+
+// This is the color all the lines and text are printed out with.
+$myBarGraph->SetLineColor("000000");
+
+// Print the BarGraph to the image..
+$myBarGraph->DrawBarGraph($image);
+Imagestring($image, 2, 2, $imageHeight-14, $legend, $white);
+   
+//------------------------------------------------ Image output
+if ($outputFormat == "png")
+{
+  header("Content-type: image/png");
+  ImagePNG($image);
+}
+else if (in_array($outputFormat, array("jpg", "jpeg")))
+{
+  header("Content-type: image/jpeg");
+  Imagejpeg($image);
+}
+// Destroy the image.
+Imagedestroy($image);
+?> 
\ No newline at end of file
diff --git a/admin/stats.php b/admin/stats.php
index 0941e96d8..228860b9c 100644
--- a/admin/stats.php
+++ b/admin/stats.php
@@ -24,295 +24,466 @@
 // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
 // | USA.                                                                  |
 // +-----------------------------------------------------------------------+
-if( !defined("PHPWG_ROOT_PATH") )
+
+if (!defined("PHPWG_ROOT_PATH"))
 {
-	die ("Hacking attempt!");
+  die ("Hacking attempt!");
 }
 
 include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
 
 // +-----------------------------------------------------------------------+
+// | Functions                                                             |
+// +-----------------------------------------------------------------------+
+
+function get_summary($year = null, $month = null, $day = null)
+{
+  $query = '
+SELECT
+    year,
+    month,
+    day,
+    hour,
+    nb_pages
+  FROM '.HISTORY_SUMMARY_TABLE;
+  
+  if (isset($day))
+  {
+    $query.= '
+  WHERE year = '.$year.'
+    AND month = '.$month.'
+    AND day = '.$day.'
+    AND hour IS NOT NULL
+  ORDER BY
+    year ASC,
+    month ASC,
+    day ASC,
+    hour ASC
+;';
+  }
+  elseif (isset($month))
+  {
+    $query.= '
+  WHERE year = '.$year.'
+    AND month = '.$month.'
+    AND day IS NOT NULL
+    AND hour IS NULL
+  ORDER BY
+    year ASC,
+    month ASC,
+    day ASC
+;';
+  }
+  elseif (isset($year))
+  {
+    $query.= '
+  WHERE year = '.$year.'
+    AND month IS NOT NULL
+    AND day IS NULL
+  ORDER BY
+    year ASC,
+    month ASC
+;';   
+  }
+  else
+  {
+    $query.= '
+  WHERE year IS NOT NULL
+    AND month IS NULL
+  ORDER BY
+    year ASC
+;';   
+  }
+
+  $result = pwg_query($query);
+
+  $output = array();
+  while ($row = mysql_fetch_array($result))
+  {
+    array_push($output, $row);
+  }
+
+  return $output;
+}
+
+// +-----------------------------------------------------------------------+
 // | Check Access and exit when user status is not ok                      |
 // +-----------------------------------------------------------------------+
+
 check_status(ACCESS_ADMINISTRATOR);
 
-$url_img = PHPWG_ROOT_PATH.'admin/images/'; 
-$nls_value_title = $lang['w_month'];
-$group_clause = "DATE_FORMAT(date,'%Y-%m') DESC";
-$where_clause = "1";
+// +-----------------------------------------------------------------------+
+// | Refresh summary from details                                          |
+// +-----------------------------------------------------------------------+
+
+$query = '
+SELECT
+    year,
+    month,
+    day,
+    hour,
+    max(id) AS max_id,
+    COUNT(*) AS nb_pages
+  FROM '.HISTORY_TABLE.'
+  WHERE summarized = \'false\'
+  GROUP BY
+    year ASC,
+    month ASC,
+    day ASC,
+    hour ASC
+;';
+$result = pwg_query($query);
+
+$need_update = array();
 
+$max_id = 0;
+$is_first = true;
+$first_time_key = null;
 
-if (isset($_GET['day']) && isset($_GET['month']) && isset($_GET['year']) )
+while ($row = mysql_fetch_array($result))
 {
-  $url_img .= 'daily_stats.img.php?year='.$_GET['year'].'&amp;month='.$_GET['month'].'&amp;day='.$_GET['day'];
-  $nls_value_title = $lang['w_day'];
-  $group_clause = "DATE_FORMAT(date,'%Y-%m-%d') ASC";
-  $where_clause = "(YEAR(date) = ".$_GET['year']." AND MONTH(date) = ".$_GET['month']." )";
+  $time_keys = array(
+    sprintf(
+      '%4u',
+      $row['year']
+      ),
+    sprintf(
+      '%4u.%02u',
+      $row['year'], $row['month']
+      ),
+    sprintf(
+      '%4u.%02u.%02u',
+      $row['year'], $row['month'], $row['day']
+      ),
+    sprintf(
+      '%4u.%02u.%02u.%02u',
+      $row['year'], $row['month'], $row['day'], $row['hour']
+      ),
+    );
+
+  foreach ($time_keys as $time_key)
+  {
+    if (!isset($need_update[$time_key]))
+    {
+      $need_update[$time_key] = 0;
+    }
+    $need_update[$time_key] += $row['nb_pages'];
+  }
+
+  if ($row['max_id'] > $max_id)
+  {
+    $max_id = $row['max_id'];
+  }
+
+  if ($is_first)
+  {
+    $is_first = false;
+    $first_time_key = $time_keys[3];
+  }
 }
-elseif (isset($_GET['month']) && isset($_GET['year']) )
+
+// Only the oldest time_key might be already summarized, so we have to
+// update the 4 corresponding lines instead of simply inserting them.
+//
+// For example, if the oldest unsummarized is 2005.08.25.21, the 4 lines
+// that can be updated are:
+//
+// +---------------+----------+
+// | id            | nb_pages |
+// +---------------+----------+
+// | 2005          |   241109 |
+// | 2005.08       |    20133 |
+// | 2005.08.25    |      620 |
+// | 2005.08.25.21 |      151 |
+// +---------------+----------+
+
+$existing_time_keys = array();
+
+if (isset($first_time_key))
+{
+  list($year, $month, $day, $hour) = explode('.', $first_time_key);
+
+  $time_keys = array(
+    sprintf('%4u',                $year),
+    sprintf('%4u.%02u',           $year, $month),
+    sprintf('%4u.%02u.%02u',      $year, $month, $day),
+    sprintf('%4u.%02u.%02u.%02u', $year, $month, $day, $hour),
+    );
+  
+  $query = '
+SELECT
+    id,
+    nb_pages
+  FROM '.HISTORY_SUMMARY_TABLE.'
+  WHERE id IN (\''.implode("', '", $time_keys).'\')
+;';
+  $result = pwg_query($query);
+  while ($row = mysql_fetch_array($result))
+  {
+    $existing_time_keys[ $row['id'] ] = $row['nb_pages'];
+  }
+}
+
+$updates = array();
+$inserts = array();
+
+foreach (array_keys($need_update) as $time_key)
+{
+  $time_tokens = explode('.', $time_key);
+
+  if (isset($existing_time_keys[$time_key]))
+  {
+    array_push(
+      $updates,
+      array(
+        'id'       => $time_key,
+        'nb_pages' => $existing_time_keys[$time_key] + $need_update[$time_key],
+        )
+      );
+  }
+  else
+  {
+    array_push(
+      $inserts,
+      array(
+        'id'       => $time_key,
+        'year'     => $time_tokens[0],
+        'month'    => @$time_tokens[1],
+        'day'      => @$time_tokens[2],
+        'hour'     => @$time_tokens[3],
+        'nb_pages' => $need_update[$time_key],
+        )
+      );
+  }
+}
+
+if (count($updates) > 0)
 {
-  $url_img .= 'monthly_stats.img.php?year='.$_GET['year'].'&amp;month='.$_GET['month'];
-  $nls_value_title = $lang['w_day'];
-  $group_clause = "DATE_FORMAT(date,'%Y-%m-%d') ASC";
-  $where_clause = "(YEAR(date) = ".$_GET['year']." AND MONTH(date) = ".$_GET['month']." )";
+  mass_updates(
+    HISTORY_SUMMARY_TABLE,
+    array(
+      'primary' => array('id'),
+      'update'  => array('nb_pages'),
+      ),
+    $updates
+    );
 }
-else 
+
+if (count($inserts) > 0)
 {
-  $url_img .= 'global_stats.img.php';
+  mass_inserts(
+    HISTORY_SUMMARY_TABLE,
+    array_keys($inserts[0]),
+    $inserts
+    );
 }
 
+if ($max_id != 0)
+{
+  $query = '
+UPDATE '.HISTORY_TABLE.'
+  SET summarized = \'true\'
+  WHERE summarized = \'false\'
+    AND id <= '.$max_id.'
+;';
+  pwg_query($query);
+}
 
-//----------------------------------------------------- template initialization
-if (isset($_GET['day']) && isset($_GET['month']) && isset($_GET['year']) )
+// +-----------------------------------------------------------------------+
+// | Page parameters check                                                 |
+// +-----------------------------------------------------------------------+
+
+foreach (array('day', 'month', 'year') as $key)
 {
-  $date_of_day=$_GET['day'].' '.$lang['month'][$_GET['month']].' '.$_GET['year'];
-  $title_page=$lang['stats_day_title'].' : '.$date_of_day;
-  $url_back = PHPWG_ROOT_PATH."admin.php?page=stats";
-  $url_back = $url_back;
-  $title_details='<a href='.$url_back.'>'.$lang['stats_day_title'].'</a>';
-  $title_day = $date_of_day;
+  if (isset($_GET[$key]))
+  {
+    $page[$key] = (int)$_GET[$key];
+  }
 }
-elseif ( isset($_GET['month']) && isset($_GET['year']) )
+
+if (isset($page['day']))
 {
-  $date_of_day=$lang['month'][$_GET['month']].' '.$_GET['year'];
-  $title_page=$lang['stats_month_title'].' : '.$date_of_day;
-  $url_back = PHPWG_ROOT_PATH."admin.php?page=stats";
-  $url_back = $url_back;
-  $title_details='<a href='.$url_back.'>'.$lang['stats_day_title'].'</a>';
-  $title_day=$lang['today'];
+  if (!isset($page['month']))
+  {
+    die('month is missing in URL');
+  }
 }
-else
+
+if (isset($page['month']))
 {
-  $date_of_day='';
-  $title_page=$lang['stats_title'];
-  $title_details=$lang['stats_month_title'];
-  $title_day=$lang['today'];
+  if (!isset($page['year']))
+  {
+    die('year is missing in URL');
+  }
 }
 
+$url_img = PHPWG_ROOT_PATH.'admin/images/stats.img.php';
 
-$template->set_filenames( array('stats'=>'admin/stats.tpl') );
-
-$template->assign_vars(array(
-  'L_VALUE'=>$nls_value_title,
-  'L_PAGES_SEEN'=>$lang['stats_pages_seen'],
-  'L_VISITORS'=>$lang['visitors'],
-  'L_PICTURES'=>$lang['pictures'],
-  'L_STAT_TITLE'=>$lang['stats_title'],
-  'L_STAT_MONTH_TITLE'=>$lang['stats_month_title'],
-  'L_STAT_MONTHLY_ALT'=>$lang['stats_global_graph_title'],
-  'L_STAT_TITLE'=>$title_page,
-  'L_STAT_DETAIL_TITLE'=>$title_details,
-  'L_DATE_TITLE'=>$title_day,
-  'L_STAT_MONTHLY_ALT'=>$lang['stats_global_graph_title'],
-  'L_STAT_HOUR'=>$lang['stats_hour'],
-  'L_STAT_LOGIN'=>$lang['stats_login'],
-  'L_STAT_ADDR'=>$lang['stats_addr'],
-  'L_STAT_CATEGORY'=>$lang['stats_category'],
-  'L_STAT_FILE'=>$lang['stats_file'],
-  'L_STAT_PICTURE'=>$lang['stats_picture'],
+if (isset($page['year']))
+{
+  $url_img.= '?year='.$page['year'];
+}
+
+if (isset($page['month']))
+{
+  $url_img.= '&amp;month='.$page['month'];
+}
+
+if (isset($page['day']))
+{
+  $url_img.= '&amp;day='.$page['day'];
+}
+
+$summary_lines = get_summary(
+  @$page['year'],
+  @$page['month'],
+  @$page['day']
+  );
+
+// +-----------------------------------------------------------------------+
+// | Display statistics header                                             |
+// +-----------------------------------------------------------------------+
+
+// page title creation
+$title_parts = array();
+
+$url = PHPWG_ROOT_PATH.'admin.php?page=stats';
+
+array_push(
+  $title_parts,
+  '<a href="'.$url.'">'.l10n('Overall').'</a>'
+  );
+
+$period_label = l10n('Year');
+
+if (isset($page['year']))
+{
+  $url.= '&amp;year='.$page['year'];
+
+  array_push(
+    $title_parts,
+    '<a href="'.$url.'">'.sprintf(l10n('Year %d'), $page['year']).'</a>'
+    );
+
+  $period_label = l10n('Month');
+}
+
+if (isset($page['month']))
+{
+  $url.= '&amp;month='.$page['month'];
+
+  array_push(
+    $title_parts,
+    '<a href="'.$url.'">'.$lang['month'][$page['month']].'</a>'
+    );
+
+  $period_label = l10n('Day');
+}
+
+if (isset($page['day']))
+{
+  $url.= '&amp;day='.$page['day'];
+
+  $time = mktime(12, 0, 0, $page['month'], $page['day'], $page['year']);
   
-  'IMG_REPORT'=>$url_img
-  ));
+  $day_title = sprintf(
+    '%u (%s)',
+    $page['day'],
+    $lang['day'][date('w', $time)]
+    );
+  
+  array_push(
+    $title_parts,
+    '<a href="'.$url.'">'.$day_title.'</a>'
+    );
 
-//---------------------------------------------------------------- log  history
-$query = '
-SELECT DISTINCT COUNT(*) as p,
-       DAYOFMONTH(date) as d,
-       MONTH(date) as m,
-       YEAR(date) as y
-  FROM '.HISTORY_TABLE.' 
-  WHERE '.$where_clause.'
-  GROUP BY '.$group_clause.';';
-
-$result = pwg_query( $query );
-$i=0;
-while ( $row = mysql_fetch_array( $result ) )
+  $period_label = l10n('Hour');
+}
+
+$template->set_filenames(array('stats'=>'admin/stats.tpl'));
+
+$template->assign_vars(
+  array(
+    'L_STAT_TITLE' => implode($conf['level_separator'], $title_parts),
+    'SRC_REPORT' => $url_img,
+    'PERIOD_LABEL' => $period_label,
+    )
+  );
+
+// +-----------------------------------------------------------------------+
+// | Display statistic rows                                                |
+// +-----------------------------------------------------------------------+
+
+$i = 1;
+
+foreach ($summary_lines as $line)
 {
-  $where_clause="";
+  // echo '<pre>'; print_r($line); echo '</pre>';
+
   $value = '';
-  if (isset($_GET['month']) && isset($_GET['year']) )
+  
+  if (isset($line['hour']))
+  {
+    $value.= $line['hour'].' '.l10n('hour');
+  }
+  else if (isset($line['day']))
   {
-    $where_clause = 'DAYOFMONTH(date) = '.$row['d'].'
-    AND MONTH(date) = '.$row['m'].'
-    AND YEAR(date) = '.$row['y'];
-    
-    $week_day =
-      $lang['day'][date('w', mktime(12,0,0,$row['m'],$row['d'],$row['y']))];
-
     $url =
       PHPWG_ROOT_PATH.'admin.php'
       .'?page=stats'
-      .'&amp;year='.$row['y']
-      .'&amp;month='.$row['m']
-      .'&amp;day='.$row['d']
+      .'&amp;year='.$line['year']
+      .'&amp;month='.$line['month']
+      .'&amp;day='.$line['day']
       ;
 
+    $time = mktime(12, 0, 0, $line['month'], $line['day'], $line['year']);
+    
     $value = '<a href="'.$url.'">';
-    $value.= $row['d'].' ('.$week_day.')';
-    $value.= "</a>";
+    $value.= $line['day'].' ('.$lang['day'][date('w', $time)].')';
+    $value.= "</a>";    
   }
-  else
+  else if (isset($line['month']))
   {
-    $current_month = $row['y']."-";
-    if ($row['m'] <10) {$current_month.='0';}
-    $current_month .= $row['m'];
-    
-    $where_clause = "DATE_FORMAT(date,'%Y-%m') = '".$current_month."'";
-
     $url =
       PHPWG_ROOT_PATH.'admin.php'
       .'?page=stats'
-      .'&amp;year='.$row['y']
-      .'&amp;month='.$row['m']
+      .'&amp;year='.$line['year']
+      .'&amp;month='.$line['month']
       ;
     
     $value = '<a href="'.$url.'">';
-    $value.= $lang['month'][$row['m']].' '.$row['y'];
+    $value.= $lang['month'][$line['month']];
     $value.= "</a>";
   }
-  
-  // Number of pictures seen
-  $query = '
-SELECT COUNT(*) as p
-    FROM '.HISTORY_TABLE.' 
-    WHERE '.$where_clause.'
-    AND FILE = \'picture\'
-;';
-  $pictures = mysql_fetch_array(pwg_query( $query ));
-  
-  // Number of different visitors
-  $query = '
-SELECT COUNT(*) as p, login
-  FROM '.HISTORY_TABLE.' 
-  WHERE '.$where_clause.'
-  GROUP BY login, IP
-;';
-  $user_results = pwg_query( $query );
-  $nb_visitors = 0;
-  $auth_users = array();
-  while ( $user_array = mysql_fetch_array( $user_results ) )
+  else
   {
-    if ($user_array['login'] == 'guest') 
-	  $nb_visitors += 1;
-	else
-	  array_push($auth_users, $user_array['login']);
+    // at least the year is defined
+    $url =
+      PHPWG_ROOT_PATH.'admin.php'
+      .'?page=stats'
+      .'&amp;year='.$line['year']
+      ;
+    
+    $value = '<a href="'.$url.'">';
+    $value.= $line['year'];
+    $value.= "</a>";    
   }
-  $nb_visitors +=count(array_unique($auth_users));
-  $class = ($i % 2)? 'row1':'row2'; $i++;
   
-  $template->assign_block_vars('statrow',array(
-      'VALUE'=>$value,
-	'PAGES'=>$row['p'],
-	'VISITORS'=>$nb_visitors,
-	'IMAGES'=>$pictures['p'],
-	
-	'T_CLASS'=>$class
-    ));
-}
-$nb_visitors = mysql_num_rows( $result );
-$days = array();
-$max_nb_visitors = 0;
-$max_pages_seen = 0;
-
-//----------------------------------------------------------- stats / jour
-
-if ( isset( $_GET['month'] ) && isset( $_GET['month'] ) && isset( $_GET['day'] ) )
-{  if ($_GET['day'] <10) {$current_day='0';
-  	$current_day.= $_GET['day'];}
-  else {$current_day = $_GET['day'];}
-  if ($_GET['month'] <10) {$current_month='0';
-  	$current_month.= $_GET['month'];}
-  else {$current_month = $_GET['month'];}
-  $current_year = $_GET['year'];
-}
-
-else
-{  $current_date = GetDate();
-  if ($current_date['mday'] <10) {$current_day='0';
-  	$current_day.= $current_date['mday'];}
-  else {$current_day = $current_date['mday'];}
-  if ($current_date['mon'] <10) {$current_month='0';
-  	$current_month.= $current_date['mon'];}
-  else {$current_month = $current_date['mon'];}
-  $current_year = $current_date['year'];  
+  $template->assign_block_vars(
+    'statrow',
+    array(
+      'VALUE' => $value,
+      'PAGES' => $line['nb_pages'],
+      
+      'T_CLASS' => ($i++ % 2) ? 'row1' : 'row2'
+      )
+    );
 }
 
-// Set WHERE clause
-$where = ' WHERE DATE_FORMAT(date,\'%Y-%m-%d\') = \''.$current_year."-".$current_month."-".$current_day.'\'';
-  
-// Set LIMIT clause
-$limit = ' LIMIT ';
-$page['start'] = 0;
-if (isset($_GET['start']) and is_numeric($_GET['start'])) $page['start'] = abs($_GET['start']);
-$limit .= $page['start'];
-$limit .= ','.$conf['nb_logs_page'];
-
-$query = '
-SELECT DATE_FORMAT(date,\'%H:%i:%s\') AS hour,
-     login,
-     IP,
-     category,
-     file,
-     picture
-  FROM '.HISTORY_TABLE.
-  $where.'
-  ORDER BY date DESC'.
-  $limit.
-  ';';
-
-
-$result = pwg_query( $query );
-
-$i=0;
- 
-while ( $row = mysql_fetch_array( $result ) )
-{
-  $class = ($i % 2)? 'row1':'row2'; $i++;
-    $template->assign_block_vars('detail',array(
-    'HOUR'=>$row['hour'],
-    'LOGIN'=>$row['login'],
-    'IP'=>$row['IP'],
-    'CATEGORY'=>$row['category'],
-    'FILE'=>$row['file'],
-    'PICTURE'=>$row['picture'],
-    'T_CLASS'=>$class
-  ));
-  }
-
-
-// Get total number of logs
-$query = '
-    SELECT COUNT(date) as nb_logs
-     FROM '.HISTORY_TABLE.
-  $where.'
-    ;';
-
-  $result = pwg_query($query);
-  $row = mysql_fetch_array($result);
-  $page['nb_logs']=$row['nb_logs'];
-
-  //display nav bar
-$url = $_SERVER['PHP_SELF'].'?page=stats';
-$url.= isset($_GET['year']) ? '&amp;year='.$_GET['year'] : '';
-$url.= isset($_GET['month']) ? '&amp;month='.$_GET['month'] : '';
-$url.= isset($_GET['day']) ? '&amp;day='.$_GET['day'] : '';
-
-$page['navigation_bar'] =
-create_navigation_bar(
-  $url,
-  $page['nb_logs'],
-  $page['start'],
-  $conf['nb_logs_page']
-  );
-
-$template->assign_block_vars(
-  'navigation',
-  array(
-    'NAV_BAR' => $page['navigation_bar']
-    )
-  );
+// +-----------------------------------------------------------------------+
+// | Sending html code                                                     |
+// +-----------------------------------------------------------------------+
 
-//----------------------------------------------------------- sending html code
 $template->assign_var_from_handle('ADMIN_CONTENT', 'stats');
 ?>