3 files changed, 62 insertions, 0 deletions
diff --git a/omaha_server/omaha/migrations/0027_auto_20160707_0720.py b/omaha_server/omaha/migrations/0027_auto_20160707_0720.py
new file mode 100644
index 0000000..4c35f02
--- /dev/null
+++ b/omaha_server/omaha/migrations/0027_auto_20160707_0720.py
@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.6 on 2016-07-07 07:20
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+def delete_duplicated_os(apps, schema_editor):
+    Os = apps.get_model("omaha", "Os")
+    Request = apps.get_model("omaha", "Request")
+    list_args = Os.objects.all().values('platform', 'version', 'sp', 'arch')
+    not_dup_args = []
+    dup_args = []
+
+    for args in list_args:
+        if args in not_dup_args:
+            if args not in dup_args:
+                dup_args.append(args)
+        else:
+            not_dup_args.append(args)
+
+    print "\nDuplicated arguments: %s" % dup_args
+    for args in dup_args:
+        dups = list(Os.objects.filter(**args))
+        original = dups[0]
+        for os in dups[1:]:
+            Request.objects.filter(os=os.id).update(os=original.id)
+            os.delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('omaha', '0026_grant_permission_django_site'),
+    ]
+
+    operations = [
+        migrations.RunPython(delete_duplicated_os, reverse_code=migrations.RunPython.noop),
+    ]
diff --git a/omaha_server/omaha/migrations/0028_auto_20160707_0825.py b/omaha_server/omaha/migrations/0028_auto_20160707_0825.py
new file mode 100644
index 0000000..8d5f529
--- /dev/null
+++ b/omaha_server/omaha/migrations/0028_auto_20160707_0825.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.6 on 2016-07-07 08:25
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('omaha', '0027_auto_20160707_0720'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='os',
+            unique_together=set([('platform', 'version', 'sp', 'arch')]),
+        ),
+    ]
diff --git a/omaha_server/omaha/models.py b/omaha_server/omaha/models.py
index d908b44..01acec3 100644
--- a/omaha_server/omaha/models.py
+++ b/omaha_server/omaha/models.py
@@ -242,6 +242,10 @@ class Os(models.Model):
     sp = models.CharField(max_length=40, null=True, blank=True)
     arch = models.CharField(max_length=10, null=True, blank=True)
 
+    class Meta:
+        unique_together = (
+            ('platform', 'version', 'sp', 'arch'),
+        )
 
 class Hw(models.Model):
     sse = models.PositiveIntegerField(null=True, blank=True)