Get all resources from a project instead

src/Project/Controllers/ProjectController.cs

@@ -138,7 +138,10 @@ namespace Coscine.Api.Project.Controllers
                     if (projectQuota.ResourceType.DisplayName == "rds") 
                     {
                         var resources = resourceModel.GetAllWhere((resource) =>
-                                        resource.TypeId == projectQuota.ResourceType.Id);
+                                            resource.TypeId == projectQuota.ResourceType.Id
+                                            && (from connection in resource.ProjectResourceResourceIdIds
+                                                where connection.ProjectId == guidId
+                                                select connection).Any());
                         
                         var size = resources.Sum((resource) => 
                                 rdsResourceTypeModel.GetById(resource.ResourceTypeOptionId.Value).Size);