fixes #1735 new API method pwg.images.setCategory to associate/dissociate/move a list of images

admin/batch_manager_global.php

@@ -207,31 +207,10 @@ DELETE
 
   else if ('dissociate' == $action)
   {
-    // physical links must not be broken, so we must first retrieve image_id
-    // which create virtual links with the category to "dissociate from".
-    $query = '
-SELECT id
-  FROM '.IMAGE_CATEGORY_TABLE.'
-    INNER JOIN '.IMAGES_TABLE.' ON image_id = id
-  WHERE category_id = '.$_POST['dissociate'].'
-    AND id IN ('.implode(',', $collection).')
-    AND (
-      category_id != storage_category_id
-      OR storage_category_id IS NULL
-    )
-;';
-    $dissociables = array_from_query($query, 'id');
+    $nb_dissociated = dissociate_images_from_category($collection, $_POST['dissociate']);
 
-    if (!empty($dissociables))
+    if ($nb_dissociated > 0)
     {
-      $query = '
-DELETE
-  FROM '.IMAGE_CATEGORY_TABLE.'
-  WHERE category_id = '.$_POST['dissociate'].'
-    AND image_id IN ('.implode(',', $dissociables).')
-';
-      pwg_query($query);
-
       $_SESSION['page_infos'] = array(
         l10n('Information data registered in database')
         );

admin/include/functions.php

@@ -2102,6 +2102,43 @@ SELECT
   }
 }
 
+/**
+ * Dissociate a list of images from a category.
+ *
+ * @param int[] $images
+ * @param int $categories
+ */
+function dissociate_images_from_category($images, $category)
+{
+  // physical links must not be broken, so we must first retrieve image_id
+  // which create virtual links with the category to "dissociate from".
+  $query = '
+SELECT id
+  FROM '.IMAGE_CATEGORY_TABLE.'
+    INNER JOIN '.IMAGES_TABLE.' ON image_id = id
+  WHERE category_id ='.$category.'
+    AND id IN ('.implode(',', $images).')
+    AND (
+      category_id != storage_category_id
+      OR storage_category_id IS NULL
+    )
+;';
+  $dissociables = array_from_query($query, 'id');
+
+  if (!empty($dissociables))
+  {
+    $query = '
+DELETE
+  FROM '.IMAGE_CATEGORY_TABLE.'
+  WHERE category_id = '.$category.'
+    AND image_id IN ('.implode(',', $dissociables).')
+';
+    pwg_query($query);
+  }
+
+  return count($dissociables);
+}
+
 /**
  * Dissociate images from all old categories except their storage category and
  * associate to new categories.

include/ws_functions/pwg.images.php

@@ -2657,4 +2657,54 @@ function ws_images_deleteOrphans($params, $service)
     'nb_orphans' => count(get_orphans()),
     );
 }
+
+/**
+ * API method
+ * Associate/Dissociate/Move photos with an album.
+ * 
+ * @since 14
+ * @param mixed[] $params
+ *    @option int[] image_id
+ *    @option int category_id
+ *    @option string action
+ *    @option string pwg_token
+ */
+function ws_images_setCategory($params, $service)
+{
+  if (get_pwg_token() != $params['pwg_token'])
+  {
+    return new PwgError(403, 'Invalid security token');
+  }
+
+  // does the category really exist?
+  $query = '
+SELECT
+    id
+  FROM '.CATEGORIES_TABLE.'
+  WHERE id = '.$params['category_id'].'
+;';
+  $categories = query2array($query);
+
+  if (count($categories) == 0)
+  {
+    return new PwgError(404, 'category_id not found');
+  }
+
+  include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+
+  if ('associate' == $params['action'])
+  {
+    associate_images_to_categories($params['image_id'], array($params['category_id']));
+  }
+  elseif ('dissociate' == $params['action'])
+  {
+    dissociate_images_from_category($params['image_id'], $params['category_id']);
+  }
+  elseif ('move' == $params['action'])
+  {
+    move_images_to_categories($params['image_id'], array($params['category_id']));
+  }
+
+  invalidate_user_cache();
+}
 ?>

tools/ws/ws.css

@@ -295,6 +295,14 @@ input[type="text"] {
     grid-template-columns: 66% 34%;
 }
 
+#methodDescription blockquote ul {
+  margin-top: 10px;
+}
+
+#methodDescription blockquote ul li {
+  list-style-type: disc;
+}
+
 .card, .card-2 {
     margin: 10px;
     background-color: var(--color-bg-secondary);

ws.php

@@ -296,6 +296,20 @@ function ws_addDefaultMethods( $arr )
       array('admin_only'=>true, 'post_only'=>true)
     );
 
+  $service->addMethod(
+      'pwg.images.setCategory',
+      'ws_images_setCategory',
+      array(
+        'image_id'    => array('flags'=>WS_PARAM_FORCE_ARRAY, 'type'=>WS_TYPE_ID),
+        'category_id' => array('type'=>WS_TYPE_ID),
+        'action'      => array('default'=>'associate', 'info' => 'associate/dissociate/move'),
+        'pwg_token'   => array(),
+        ),
+      'Manage associations of images with an album. <b>action</b> can be:<ul><li><i>associate</i> : add photos to this album</li><li><i>dissociate</i> : remove photos from this album</li><li><i>move</i> : dissociate photos from any other album and adds photos to this album</li></ul>',
+      $ws_functions_root . 'pwg.images.php',
+      array('admin_only'=>true, 'post_only'=>true)
+    );
+
   $service->addMethod(
       'pwg.rates.delete',
       'ws_rates_delete',