improvement: tags replace keywords. Better data model, less

limitations. Each image can be associated to as many tag as needed. Tags can
contain non ASCII characters. Oriented navigation with tags by association.


git-svn-id: http://piwigo.org/svn/trunk@1119 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 265 insertions, 0 deletions

diff --git a/admin/tags.php b/admin/tags.php
new file mode 100644
index 000000000..7ff29727c
--- /dev/null
+++ b/admin/tags.php
@@ -0,0 +1,265 @@
+<?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: 2006-03-09 23:46:28 +0100 (jeu, 09 mar 2006) $
+// | last modifier : $Author: rub $
+// | revision      : $Revision: 1072 $
+// +-----------------------------------------------------------------------+
+// | 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.                                                                  |
+// +-----------------------------------------------------------------------+
+
+if( !defined("PHPWG_ROOT_PATH") )
+{
+  die ("Hacking attempt!");
+}
+
+include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+check_status(ACCESS_ADMINISTRATOR);
+
+// +-----------------------------------------------------------------------+
+// |                                edit tags                              |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['submit']))
+{
+  $query = '
+SELECT name
+  FROM '.TAGS_TABLE.'
+;';
+  $existing_names = array_from_query($query, 'name');
+  
+
+  $current_name_of = array();
+  $query = '
+SELECT id, name
+  FROM '.TAGS_TABLE.'
+  WHERE id IN ('.$_POST['edit_list'].')
+;';
+  $result = pwg_query($query);
+  while ($row = mysql_fetch_array($result))
+  {
+    $current_name_of[ $row['id'] ] = $row['name'];
+  }
+  
+  $updates = array();
+  // we must not rename tag with an already existing name
+  foreach (explode(',', $_POST['edit_list']) as $tag_id)
+  {
+    if (function_exists('mysql_real_escape_string'))
+    {
+      $tag_name = mysql_real_escape_string($_POST['tag_name-'.$tag_id]);
+    }
+    else
+    {
+      $tag_name = mysql_escape_string($_POST['tag_name-'.$tag_id]);
+    }
+
+    if ($tag_name != $current_name_of[$tag_id])
+    {
+      if (in_array($tag_name, $existing_names))
+      {
+        array_push(
+          $page['errors'],
+          sprintf(
+            l10n('Tag "%s" already exist'),
+            $tag_name
+            )
+          );
+      }
+      else if (!empty($tag_name))
+      {
+        array_push(
+          $updates,
+          array(
+            'id' => $tag_id,
+            'name' => $tag_name,
+            'url_name' => str2url($tag_name),
+            )
+          );
+      }
+    }
+  }
+  mass_updates(
+    TAGS_TABLE,
+    array(
+      'primary' => array('id'),
+      'update' => array('name', 'url_name'),
+      ),
+    $updates
+    );
+}
+
+// +-----------------------------------------------------------------------+
+// |                               delete tags                             |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['delete']) and isset($_POST['tags']))
+{
+  $query = '
+SELECT name
+  FROM '.TAGS_TABLE.'
+  WHERE id IN ('.implode(',', $_POST['tags']).')
+;';
+  $tag_names = array_from_query($query, 'name');
+  
+  $query = '
+DELETE
+  FROM '.IMAGE_TAG_TABLE.'
+  WHERE tag_id IN ('.implode(',', $_POST['tags']).')
+;';
+  pwg_query($query);
+  
+  $query = '
+DELETE
+  FROM '.TAGS_TABLE.'
+  WHERE id IN ('.implode(',', $_POST['tags']).')
+;';
+  pwg_query($query);
+  
+  array_push(
+    $page['infos'],
+    sprintf(
+      l10n('The %d following tags were deleted : %s'),
+      count($tag_names),
+      implode(', ', $tag_names)
+      )
+    );
+}
+
+// +-----------------------------------------------------------------------+
+// |                               add a tag                               |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['add_tag']) and !empty($_POST['add_tag']))
+{
+  if (function_exists('mysql_real_escape_string'))
+  {
+    $tag_name = mysql_real_escape_string($_POST['add_tag']);
+  }
+  else
+  {
+    $tag_name = mysql_escape_string($_POST['add_tag']);
+  }
+
+  // does the tag already exist?
+  $query = '
+SELECT id
+  FROM '.TAGS_TABLE.'
+  WHERE name = \''.$tag_name.'\'
+;';
+  $existing_tags = array_from_query($query, 'id');
+
+  if (count($existing_tags) == 0)
+  {
+    mass_inserts(
+      TAGS_TABLE,
+      array('name', 'url_name'),
+      array(
+        array(
+          'name' => $tag_name,
+          'url_name' => str2url($tag_name),
+          )
+        )
+      );
+    
+    array_push(
+      $page['infos'],
+      sprintf(
+        l10n('Tag "%s" was added'),
+        $tag_name
+        )
+      );
+  }
+  else
+  {
+    array_push(
+      $page['errors'],
+      sprintf(
+        l10n('Tag "%s" already exist'),
+        $tag_name
+        )
+      );
+  }
+}
+
+// +-----------------------------------------------------------------------+
+// |                             template init                             |
+// +-----------------------------------------------------------------------+
+
+$template->set_filenames(array('tags' => 'admin/tags.tpl'));
+
+$template->assign_vars(
+  array(
+    'F_ACTION' => PHPWG_ROOT_PATH.'admin.php?page=tags'
+    )
+  );
+
+// +-----------------------------------------------------------------------+
+// |                             form creation                             |
+// +-----------------------------------------------------------------------+
+
+$template->assign_vars(
+  array(
+    'TAG_SELECTION' => get_html_tag_selection(
+      get_all_tags(),
+      'tags'
+      ),
+    )
+  );
+
+if (isset($_POST['edit']) and isset($_POST['tags']))
+{
+  $template->assign_block_vars(
+    'edit_tags',
+    array(
+      'LIST' => implode(',', $_POST['tags']),
+      )
+    );
+
+  $query = '
+SELECT id, name
+  FROM '.TAGS_TABLE.'
+  WHERE id IN ('.implode(',', $_POST['tags']).')
+;';
+  $result = pwg_query($query);
+  while ($row = mysql_fetch_array($result))
+  {
+    $name_of[ $row['id'] ] = $row['name'];
+  }
+
+  foreach ($_POST['tags'] as $tag_id)
+  {
+    $template->assign_block_vars(
+      'edit_tags.tag',
+      array(
+        'ID' => $tag_id,
+        'NAME' => $name_of[$tag_id],
+        )
+      );
+  }
+}
+
+// +-----------------------------------------------------------------------+
+// |                           sending html code                           |
+// +-----------------------------------------------------------------------+
+
+$template->assign_var_from_handle('ADMIN_CONTENT', 'tags');
+
+?>