add a latest method to query the latest x events

src/membership/migrations/0007_auto_20171115_0653.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.7 on 2017-11-15 05:53
+from __future__ import unicode_literals
+
+import django.contrib.auth.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0006_auto_20160916_1759'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='membership',
+            name='gender',
+            field=models.CharField(blank=True, choices=[('m', 'Male'), ('f', 'Female')], max_length=1, null=True, verbose_name='Geschlecht'),
+        ),
+        migrations.AlterField(
+            model_name='membership',
+            name='username',
+            field=models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username'),
+        ),
+    ]