Change Proposicao.data_envio to nullable

materia/migrations/0002_auto_20150619_1807.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('materia', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='proposicao',
+            name='data_envio',
+            field=models.DateTimeField(null=True),
+        ),
+    ]

materia/models.py

@@ -163,7 +163,8 @@ class Proposicao(models.Model):
     materia = models.ForeignKey(MateriaLegislativa, blank=True, null=True)          # cod_materia
     autor = models.ForeignKey(Autor)                                                # cod_autor
     tipo = models.ForeignKey(TipoProposicao)                                        # tip_proposicao
-    data_envio = models.DateTimeField()                                             # dat_envio
+    # XXX data_envio was not null, but actual data said otherwise!!!
+    data_envio = models.DateTimeField(null=True)                                    # dat_envio
     data_recebimento = models.DateTimeField(blank=True, null=True)                  # dat_recebimento
     txt_descricao = models.CharField(max_length=100)                                # txt_descricao
     cod_mat_ou_doc = models.IntegerField(blank=True, null=True)                     # cod_mat_ou_doc