def serialize_user(context, request, api=None):
if api is None:
api = TemplateAPI(context, request)
udata = None
user = request.user
if user is not None:
udata = dict()
for key in ['id', 'email', 'groups', 'name', 'title']:
udata[key] = getattr(user, key)
for dt in ['creation_date', 'last_login_date']:
value = getattr(user, dt)
if value is not None:
value = value.isoformat()
udata[dt] = value
udata['avatar_prefix'] = api.avatar_url(user=request.user, size='')
udata['prefs_url'] = api.url(api.root, '@@prefs')
return udata
