Fix for ticket #268

1) Added a clear method to model_cache
2) Cleared the model_cache, when the make_album_cover or
remove_album_cover is called.

2 files changed, 8 insertions, 0 deletions

diff --git a/core/helpers/item.php b/core/helpers/item.php
index f5dbc38b..b051bb0e 100644
--- a/core/helpers/item.php
+++ b/core/helpers/item.php
@@ -49,6 +49,7 @@ class item_Core {
     $parent = $item->parent();
     access::required("edit", $parent);
 
+    model_cache::clear("item", $parent->album_cover_item_id);
     $parent->album_cover_item_id = $item->is_album() ? $item->album_cover_item_id : $item->id;
     $parent->thumb_dirty = 1;
     $parent->save();
@@ -63,6 +64,7 @@ class item_Core {
     access::required("edit", $album);
     @unlink($album->thumb_path());
 
+    model_cache::clear("item", $album->album_cover_item_id)  ;
     $album->album_cover_item_id = null;
     $album->thumb_width = 0;
     $album->thumb_height = 0;
diff --git a/core/helpers/model_cache.php b/core/helpers/model_cache.php
index f4b11a6e..2649fdbd 100644
--- a/core/helpers/model_cache.php
+++ b/core/helpers/model_cache.php
@@ -32,6 +32,12 @@ class model_cache_Core {
     return self::$cache->$model_name->$field_name->$id;
   }
 
+  static function clear($model_name, $id, $field_name="id") {
+    if (!empty(self::$cache->$model_name->$field_name->$id)) {
+      unset(self::$cache->$model_name->$field_name->$id);
+    }
+  }
+
   static function set($model) {
     self::$cache->{$model->object_name}
       ->{$model->primary_key}