Resolve "Frontend for Models"

Closes #1 (closed)

aleksis/apps/lesrooster/apps.py

@@ -2,7 +2,13 @@ from django.db.models import signals
 
 from aleksis.core.util.apps import AppConfig
 
-from .util.signal_handlers import m2m_changed_handler, post_save_handler
+from .util.signal_handlers import (
+    create_time_grid_for_new_validity_range,
+    m2m_changed_handler,
+    post_save_handler,
+    pre_delete_handler,
+    publish_validity_range,
+)
 
 
 class DefaultConfig(AppConfig):
@@ -18,7 +24,13 @@ class DefaultConfig(AppConfig):
 
     def ready(self):
         # Configure change tracking for models to sync changes with LessonEvent in Chronos
-        from .models import Lesson, Substitution, Supervision, SupervisionSubstitution
+        from .models import (
+            Lesson,
+            Substitution,
+            Supervision,
+            SupervisionSubstitution,
+            ValidityRange,
+        )
 
         models = [Lesson, Supervision, Substitution, SupervisionSubstitution]
 
@@ -29,5 +41,23 @@ class DefaultConfig(AppConfig):
             )
             signals.m2m_changed.connect(
                 m2m_changed_handler,
-                sender=model,
+                sender=model.teachers.through,
             )
+            signals.pre_delete.connect(pre_delete_handler, sender=model)
+
+        signals.m2m_changed.connect(
+            m2m_changed_handler,
+            sender=Lesson.rooms.through,
+        )
+        signals.m2m_changed.connect(
+            m2m_changed_handler,
+            sender=Supervision.rooms.through,
+        )
+        signals.m2m_changed.connect(
+            m2m_changed_handler,
+            sender=Substitution.rooms.through,
+        )
+
+        signals.post_save.connect(create_time_grid_for_new_validity_range, sender=ValidityRange)
+
+        signals.post_save.connect(publish_validity_range, sender=ValidityRange)