Optimize exam models for importing exams from Untis

aleksis/apps/chronos/migrations/0011_exam.py

+# Generated by Django 3.2.13 on 2022-06-04 14:06
+
+import datetime
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('chronos', '0010_remove_subject_unique_name_per_site'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='extralesson',
+            name='exam',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='extra_lessons', to='chronos.exam', verbose_name='Related exam'),
+        ),
+        migrations.AlterField(
+            model_name='exam',
+            name='comment',
+            field=models.TextField(blank=True, default='', verbose_name='Comment'),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='exam',
+            name='date',
+            field=models.DateField(default=datetime.date(1999, 1, 1), verbose_name='Date of exam'),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='exam',
+            name='period_from',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, related_name='+', to='chronos.timeperiod', verbose_name='Start period'),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='exam',
+            name='period_to',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, related_name='+', to='chronos.timeperiod', verbose_name='End period'),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='exam',
+            name='title',
+            field=models.CharField(blank=True, max_length=255, verbose_name='Title'),
+        ),
+        migrations.AlterField(
+            model_name='timeperiod',
+            name='weekday',
+            field=models.PositiveSmallIntegerField(choices=[(0, 'Monday'), (1, 'Tuesday'), (2, 'Wednesday'), (3, 'Thursday'), (4, 'Friday'), (5, 'Saturday'), (6, 'Sunday')], verbose_name='Week day'),
+        ),
+    ]