feature 169 added: ability to manually sort images inside a category. A

dedicated screen let the administrator sort the images (pur HTML, no
JavaScript yet). The "rank" sort order is available only for a category
without flat mode. New database column image_category.rank.


git-svn-id: http://piwigo.org/svn/trunk@2517 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 174 insertions, 0 deletions

diff --git a/admin/element_set_ranks.php b/admin/element_set_ranks.php
new file mode 100644
index 000000000..9f4a086ee
--- /dev/null
+++ b/admin/element_set_ranks.php
@@ -0,0 +1,174 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery                                  |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008      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.                                                                  |
+// +-----------------------------------------------------------------------+
+
+/**
+ * Change rank of images inside a category
+ *
+ */
+
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+
+// +-----------------------------------------------------------------------+
+// | Check Access and exit when user status is not ok                      |
+// +-----------------------------------------------------------------------+
+check_status(ACCESS_ADMINISTRATOR);
+
+if (!isset($_GET['cat_id']) or !is_numeric($_GET['cat_id']))
+{
+  trigger_error('missing cat_id param', E_USER_ERROR);
+}
+
+$page['category_id'] = $_GET['cat_id'];
+
+// +-----------------------------------------------------------------------+
+// |                               functions                               |
+// +-----------------------------------------------------------------------+
+
+/**
+ * save the rank depending on given images order
+ *
+ * The list of ordered images id is supposed to be in the same parent
+ * category
+ *
+ * @param array categories
+ * @return void
+ */
+function save_images_order($category_id, $images)
+{
+  $current_rank = 0;
+  $datas = array();
+  foreach ($images as $id)
+  {
+    array_push(
+      $datas,
+      array(
+        'category_id' => $category_id,
+        'image_id' => $id,
+        'rank' => ++$current_rank,
+        )
+      );
+  }
+  $fields = array(
+    'primary' => array('image_id', 'category_id'),
+    'update' => array('rank')
+    );
+  mass_updates(IMAGE_CATEGORY_TABLE, $fields, $datas);
+}
+
+// +-----------------------------------------------------------------------+
+// |                       global mode form submission                     |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['submit']))
+{
+  asort($_POST['rank_of_image'], SORT_NUMERIC);
+  
+  save_images_order(
+    $page['category_id'],
+    array_keys($_POST['rank_of_image'])
+    );
+
+  array_push(
+    $page['infos'],
+    l10n('Images manual order was saved')
+    );
+}
+
+// +-----------------------------------------------------------------------+
+// |                             template init                             |
+// +-----------------------------------------------------------------------+
+$template->set_filenames(
+  array('element_set_ranks' => 'admin/element_set_ranks.tpl')
+  );
+
+$base_url = get_root_url().'admin.php';
+
+// $form_action = $base_url.'?page=element_set_global';
+
+$query = '
+SELECT uppercats
+  FROM '.CATEGORIES_TABLE.'
+  WHERE id = '.$page['category_id'].'
+;';
+$category = mysql_fetch_array(pwg_query($query));
+
+// Navigation path
+$navigation = get_cat_display_name_cache(
+  $category['uppercats'],
+  get_root_url().'admin.php?page=cat_modify&amp;cat_id='
+  );
+
+$template->assign(
+  array(
+    'CATEGORIES_NAV' => $navigation,
+    'F_ACTION' => $base_url.get_query_string_diff(array()),
+   )
+ );
+
+// +-----------------------------------------------------------------------+
+// |                              thumbnails                               |
+// +-----------------------------------------------------------------------+
+
+$query = '
+SELECT
+    id,
+    path,
+    tn_ext,
+    rank
+  FROM '.IMAGES_TABLE.'
+    JOIN '.IMAGE_CATEGORY_TABLE.' ON image_id = id
+  WHERE category_id = '.$page['category_id'].'
+  ORDER BY rank
+;';
+$result = pwg_query($query);
+
+// template thumbnail initialization
+$current_rank = 1;
+
+while ($row = mysql_fetch_assoc($result))
+{
+  $src = get_thumbnail_url($row);
+  
+  $template->append(
+    'thumbnails',
+    array(
+      'ID' => $row['id'],
+      'TN_SRC' => $src,
+      'RANK' => $current_rank * 10,
+      )
+    );
+
+  $current_rank++;
+}
+
+// +-----------------------------------------------------------------------+
+// |                          sending html code                            |
+// +-----------------------------------------------------------------------+
+
+$template->assign_var_from_handle('ADMIN_CONTENT', 'element_set_ranks');
+?>