gitlab bot: make project_id unique=True

dr_botzo/gitlab_bot/migrations/0002_auto_20160624_1354.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('gitlab_bot', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='gitlabprojectconfig',
+            name='project_id',
+            field=models.CharField(unique=True, max_length=64),
+        ),
+    ]

dr_botzo/gitlab_bot/models.py

@@ -24,7 +24,7 @@ class GitlabProjectConfig(models.Model):
     """Maintain settings for a particular project in GitLab."""
 
     gitlab_config = models.ForeignKey('GitlabConfig', null=True)
-    project_id = models.CharField(max_length=64)
+    project_id = models.CharField(max_length=64, unique=True)
 
     manage_merge_request_code_reviews = models.BooleanField(default=False)
     code_reviews_necessary = models.PositiveSmallIntegerField(default=0)