Remove unique_together de TipoProposicao

sapl/materia/migrations/0015_auto_20170908_1024.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.13 on 2017-09-08 10:24
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+from sapl.materia.models import TipoProposicao
+
+
+class AlterUniqueTogetherFixConstraintInexistente(
+        migrations.AlterUniqueTogether):
+
+    def database_forwards(self,
+                          app_label, schema_editor, from_state, to_state):
+        constraint_names = schema_editor._constraint_names(
+            TipoProposicao, ['content_type_id', 'object_id'], unique=True)
+        if constraint_names:
+            # por alguma razão a constraint não existe em alguns bancos
+            # se ela existir continua a exetução normal
+            super(AlterUniqueTogetherFixConstraintInexistente,
+                  self).database_forwards(
+                app_label, schema_editor, from_state, to_state
+            )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('materia', '0014_auto_20170905_0818'),
+    ]
+
+    operations = [
+        AlterUniqueTogetherFixConstraintInexistente(
+            name='tipoproposicao',
+            unique_together=set([]),
+        ),
+    ]

sapl/materia/models.py

@@ -66,7 +66,6 @@ class TipoProposicao(models.Model):
     class Meta:
         verbose_name = _('Tipo de Proposição')
         verbose_name_plural = _('Tipos de Proposições')
-        unique_together = (('content_type', 'object_id'), )
 
     def __str__(self):
         return self.descricao