Get rid of User.givenname and User.familyname

src/pretix/base/migrations/0057_auto_20170107_1531.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.4 on 2017-01-07 15:31
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+import pretix.base.validators
+
+
+def merge_names(apps, schema_editor):
+    User = apps.get_model('pretixbase', 'User')
+    for u in User.objects.all():
+        if u.givenname:
+            if u.familyname:
+                u.fullname = u.givenname + " " + u.familyname
+            else:
+                u.fullname = u.givenname
+        elif u.familyname:
+            u.fullname = u.familyname
+        u.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0056_auto_20170107_1251'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='fullname',
+            field=models.CharField(blank=True, max_length=255, null=True, verbose_name='Full name'),
+        ),
+        migrations.AlterField(
+            model_name='organizer',
+            name='slug',
+            field=models.SlugField(help_text='Should be short, only contain lowercase letters and numbers, and must be unique among your events. This is being used in addresses and bank transfer references.', validators=[django.core.validators.RegexValidator(message='The slug may only contain letters, numbers, dots and dashes.', regex='^[a-zA-Z0-9.-]+$'), pretix.base.validators.OrganizerSlugBlacklistValidator()], verbose_name='Short form'),
+        ),
+        migrations.RunPython(merge_names, migrations.RunPython.noop)
+    ]

src/pretix/base/migrations/0058_auto_20170107_1533.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.4 on 2017-01-07 15:33
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0057_auto_20170107_1531'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='user',
+            name='familyname',
+        ),
+        migrations.RemoveField(
+            model_name='user',
+            name='givenname',
+        ),
+    ]