Cria migração para aplicar valores válidos e únicos (#2813)

Fixes #2807

sapl/sessao/migrations/0040_auto_20190523_1130.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-05-23 14:30
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+def unifica_opcaoes_ordenacao_resumo(apps, schema_editor):
+    ResumoOrdenacao = apps.get_model('sessao', 'ResumoOrdenacao')
+    ro = ResumoOrdenacao.objects.get_or_create()[0]
+    if 'oradores_o_d' not in ro.__dict__:
+        ro.decimo_quarto = 'oradores_o_d'
+        ro.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('sessao', '0039_auto_20190430_0825'),
+    ]
+
+    operations = [
+        migrations.RunPython(unifica_opcaoes_ordenacao_resumo)
+    ]