20470: Handle nil selection, selecting on writable_by

Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <peter.amstutz@curii.com>

diff --git a/services/api/app/controllers/application_controller.rb b/services/api/app/controllers/application_controller.rb
index ffe55b3c67e3a378adbc160c6125001dbafa7bda..1fbd65fd828841fa4e5806949ef9aac0c4445dee 100644 (file)
--- a/services/api/app/controllers/application_controller.rb
+++ b/services/api/app/controllers/application_controller.rb
@@ -229,6 +229,7 @@ class ApplicationController < ActionController::Base
   end
 
   def select_for_klass sel, model_class
+    return nil if sel.nil?
     # Filter the select fields to only the ones that apply to the
     # given class.
     sel.map do |column|

diff --git a/services/api/app/models/group.rb b/services/api/app/models/group.rb
index 85855fda97271a2cbfc855fef5d0862fa2a7122e..aa3a19bf87004f950e7e5f390650ce9ac964619f 100644 (file)
--- a/services/api/app/models/group.rb
+++ b/services/api/app/models/group.rb
@@ -54,6 +54,7 @@ class Group < ArvadosModel
     super.merge(
                 'can_write' => ['owner_uuid', 'uuid'],
                 'can_manage' => ['owner_uuid', 'uuid'],
+                'writable_by' => ['owner_uuid', 'uuid'],
                 )
   end