Add an user and a comment field to workflow transitions log. Index the datatime field of workflow logs.

mayan/apps/document_states/__init__.py

@@ -52,6 +52,10 @@ register_model_list_columns(WorkflowInstance, [
         'name': _('Current state'),
         'attribute': 'get_current_state'
     },
+    {
+        'name': _('User'),
+        'attribute': encapsulate(lambda workflow: getattr(workflow.get_last_log_entry(), 'user', _('None')))
+    },
     {
         'name': _('Last transition'),
         'attribute': 'get_last_transition'
@@ -78,10 +82,18 @@ register_model_list_columns(WorkflowInstanceLogEntry, [
         'name': _('Date and time'),
         'attribute': 'datetime'
     },
+    {
+        'name': _('User'),
+        'attribute': 'user'
+    },
     {
         'name': _('Transition'),
         'attribute': 'transition'
     },
+    {
+        'name': _('Comment'),
+        'attribute': 'comment'
+    },
 ])
 
 register_links([Document], [link_document_workflow_instance_list], menu_name='form_header')