séparation d’une migration en deux

cf 1eb1449bcc9d479cf897e472127e578cf82cad75

services/migrations/0009_auto_20170211_1523.py

@@ -2,14 +2,13 @@
 # Generated by Django 1.10.5 on 2017-02-11 14:23
 from __future__ import unicode_literals
 
-from django.db import migrations, models
-import django.db.models.deletion
+from django.db import migrations
 
 
 def remove_unaffected_services(apps, schema_editor):
     db_alias = schema_editor.connection.alias
     Service = apps.get_model('services', 'Service')
-    Service.objects.filter(adherent__isnull=True).delete()
+    Service.objects.using(db_alias).filter(adherent__isnull=True).delete()
 
 
 class Migration(migrations.Migration):
@@ -20,9 +19,4 @@ class Migration(migrations.Migration):
 
     operations = [
         migrations.RunPython(remove_unaffected_services),
-        migrations.AlterField(
-            model_name='service',
-            name='adherent',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='services', to='adhesions.Adherent', verbose_name='Adhérent'),
-        ),
     ]

services/migrations/0010_auto_20170211_1635.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.5 on 2017-02-11 15:35
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('services', '0009_auto_20170211_1523'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='service',
+            name='adherent',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='services', to='adhesions.Adherent', verbose_name='Adhérent'),
+        ),
+    ]