==========================
Wednesday, August 20, 2014
==========================

Continued with :srcref:`docs/tickets/123`. 

- added new field `courses.Line.fees_cat` to avoid users seeing *all*
  products when selecting a fee.

  TODO: rename field `tariff` to `fee`.



'NoneType' object has no attribute 'isoweekday'
-----------------------------------------------

Traceback (most recent call last)::
    
  File "/var/www/vhosts/eiche/lino/env/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 114, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/var/www/vhosts/eiche/lino/env/local/lib/python2.7/site-packages/django/views/generic/base.py", line 69, in view
    return self.dispatch(request, *args, **kwargs)
  File "/var/www/vhosts/eiche/lino/env/local/lib/python2.7/site-packages/django/views/generic/base.py", line 87, in dispatch
    return handler(request, *args, **kwargs)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/extjs/views.py", line 563, in get
    return settings.SITE.ui.run_action(ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/core/kernel.py", line 556, in run_action
    ar.bound_action.action.run_from_ui(ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/core/actions.py", line 1129, in run_from_ui
    n += self.run_on_row(obj, ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 159, in run_on_row
    return obj.update_reminders(ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 223, in update_reminders
    return self.update_auto_events(ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 230, in update_auto_events
    wanted = self.get_wanted_auto_events(ar)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 361, in get_wanted_auto_events
    date = rset.find_start_date(date)
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 511, in find_start_date
    if self.is_available_on(date):
  File "/var/www/vhosts/eiche/repositories/lino/lino/modlib/cal/mixins.py", line 517, in is_available_on
    wd = date.isoweekday()  # Monday:1, Tuesday:2 ... Sunday:7