Enlarge group name field

representatives/migrations/0018_auto_20160624_0517.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('representatives', '0017_auto_20160623_2201'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='group',
+            name='name',
+            field=models.CharField(max_length=511, db_index=True),
+        ),
+    ]

representatives/models.py

@@ -174,7 +174,7 @@ class Group(HashableModel, TimeStampedModel):
     """
     An entity represented by a representative through a mandate
     """
-    name = models.CharField(max_length=255, db_index=True)
+    name = models.CharField(max_length=511, db_index=True)
     abbreviation = models.CharField(max_length=10, blank=True, default='',
         db_index=True)
     kind = models.CharField(max_length=255, db_index=True)