Resolve "Add support for defining group types"

Closes #217 (closed)

aleksis/core/migrations/0021_group_types.py

+# Generated by Django 3.0.5 on 2020-04-13 13:44
+
+import django.contrib.postgres.fields.jsonb
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0020_incease_length_of_fields'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='GroupType',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('extended_data', django.contrib.postgres.fields.jsonb.JSONField(default=dict, editable=False)),
+                ('name', models.CharField(max_length=50, verbose_name='Title of type')),
+                ('description', models.CharField(max_length=500, verbose_name='Description')),
+            ],
+            options={
+                'verbose_name': 'Group type',
+                'verbose_name_plural': 'Group types',
+            },
+        ),
+        migrations.AddField(
+            model_name='group',
+            name='type',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='type', to='core.GroupType', verbose_name='Type of group'),
+        ),
+    ]