Fix imports of TimetableType

aleksis/apps/chronos/model_extensions.py

@@ -5,7 +5,8 @@ from jsonstore import BooleanField
 
 from aleksis.core.models import Person, Group, Announcement
 
-from .models import Lesson, LessonPeriod, TimetableType
+from .managers import TimetableType
+from .models import Lesson, LessonPeriod
 
 
 @Person.property

aleksis/apps/chronos/util/build.py

@@ -6,7 +6,7 @@ from calendarweek import CalendarWeek
 from django.apps import apps
 from django.db.models import QuerySet
 
-from aleksis.apps.chronos.models import TimetableType
+from aleksis.apps.chronos.managers import TimetableType
 from aleksis.core.models import Person
 
 LessonPeriod = apps.get_model("chronos", "LessonPeriod")

aleksis/apps/chronos/views.py

@@ -15,7 +15,8 @@ from rules.contrib.views import permission_required
 from aleksis.core.models import Person, Group, Announcement
 from aleksis.core.util import messages
 from .forms import LessonSubstitutionForm
-from .models import LessonPeriod, LessonSubstitution, TimePeriod, Room, Holiday, Absence, TimetableType
+from .managers import TimetableType
+from .models import LessonPeriod, LessonSubstitution, TimePeriod, Room, Holiday, Absence
 from .tables import LessonsTable
 from .util.build import build_timetable, build_substitutions_list, build_weekdays
 from .util.js import date_unix