feature added: pwg.images.add can perform an update on an existing photo.

git-svn-id: http://piwigo.org/svn/trunk@13090 68402e56-0260-453c-a942-63ccdbb3a9ee

include/ws_functions.inc.php

@@ -1745,6 +1745,24 @@ function ws_images_add($params, &$service)
       );
   }
 
+  $params['image_id'] = (int)$params['image_id'];
+  if ($params['image_id'] > 0)
+  {
+    include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+
+    $query='
+SELECT *
+  FROM '.IMAGES_TABLE.'
+  WHERE id = '.$params['image_id'].'
+;';
+
+    $image_row = pwg_db_fetch_assoc(pwg_query($query));
+    if ($image_row == null)
+    {
+      return new PwgError(404, "image_id not found");
+    }
+  }
+
   // does the image already exists ?
   if ($params['check_uniqueness'])
   {
@@ -1797,7 +1815,7 @@ SELECT
     $params['original_filename'],
     null, // categories
     isset($params['level']) ? $params['level'] : null,
-    null, // image_id
+    $params['image_id'] > 0 ? $params['image_id'] : null,
     $params['original_sum']
     );
 

ws.php

@@ -260,6 +260,7 @@ function ws_addDefaultMethods( $arr )
         'maxValue' => $conf['available_permission_levels']
         ),
       'check_uniqueness' => array('default' => true),
+      'image_id' => array('default' => null),
       ),
     'POST method only.
 <br><b>categories</b> is a string list "category_id[,rank];category_id[,rank]" The rank is optional and is equivalent to "auto" if not given.'