def add_organizer(user_dao, request_dict):
"""
Summary: Add a new organizer identified by Wikimedia username
Request mode:
username:
type: string
Response model:
username:
type: string
last_active_date:
type: date-time
Errors:
403: User does not have permission to add organizers
"""
maint_dao = MaintainerDAO(user_dao)
new_user_name = request_dict.get('username')
new_organizer = maint_dao.add_organizer(new_user_name)
data = {'username': new_organizer.username,
'last_active_date': format_date(new_organizer.last_active_date)}
return {'data': data}