Make missing models extensible

aleksis/apps/chronos/migrations/0009_extended_data.py

+# Generated by Django 3.0.4 on 2020-03-30 13:04
+
+import django.contrib.postgres.fields.jsonb
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('chronos', '0008_break_period'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='lesson',
+            name='extended_data',
+            field=django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False),
+        ),
+        migrations.AddField(
+            model_name='lessonsubstitution',
+            name='extended_data',
+            field=django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False),
+        ),
+        migrations.AddField(
+            model_name='room',
+            name='extended_data',
+            field=django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False),
+        ),
+        migrations.AddField(
+            model_name='subject',
+            name='extended_data',
+            field=django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False),
+        ),
+        migrations.AddField(
+            model_name='timeperiod',
+            name='extended_data',
+            field=django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False),
+        ),
+    ]