migrate to django's native JSONField

src/c3nav/control/migrations/0009_django_4_0.py

@@ -0,0 +1,37 @@
+# Generated by Django 4.0.3 on 2022-04-03 17:32
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('mapdata', '0086_django_4_0'),
+        ('control', '0008_userpermissions_reports'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='userpermissions',
+            name='review_group_reports',
+            field=models.ManyToManyField(blank=True, limit_choices_to={'access_restriction': None}, to='mapdata.locationgroup', verbose_name='can review reports belonging to'),
+        ),
+        migrations.AlterField(
+            model_name='userpermissions',
+            name='user',
+            field=models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, primary_key=True, serialize=False, to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='userspaceaccess',
+            name='space',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='mapdata.space'),
+        ),
+        migrations.AlterField(
+            model_name='userspaceaccess',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
+        ),
+    ]