use signal for default label creation

issue/__init__.py

@@ -0,0 +1 @@
+default_app_config = 'issue.apps.IssueConfig'

issue/apps.py

@@ -0,0 +1,10 @@
+from django.apps import AppConfig
+
+
+class IssueConfig(AppConfig):
+
+    name = 'issue'
+    verbose_name = "Issue Tracker"
+
+    def ready(self):
+        import issue.signals

issue/models.py

@@ -27,12 +27,6 @@ class Project(models.Model):
     description = models.TextField(blank=True, default="",
             verbose_name="Description")
 
-    def create_default_labels(self):
-
-        Label(project=self, name='bug', color='#FF0000').save()
-        Label(project=self, name='feature', color='#00A000').save()
-        Label(project=self, name='documentation', color='#1D3DBE').save()
-
     def __str__(self):
 
         return self.display_name

issue/signals.py

@@ -0,0 +1,13 @@
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from issue.models import Project, Label
+
+
+@receiver(post_save, sender=Project, dispatch_uid="Create default project labels.")
+def create_default_project_labels(sender, **kwargs):
+    if kwargs['created']:
+        project = kwargs['instance']
+        Label(project=project, name='bug', color='#FF0000').save()
+        Label(project=project, name='feature', color='#00A000').save()
+        Label(project=project, name='documentation', color='#1D3DBE').save()

issue/views.py

@@ -46,8 +46,6 @@ def project_add(request):
 
             project = form.save()
 
-            project.create_default_labels()
-
             messages.success(request, 'Project added successfully.')
 
             return redirect('list-issue', project.name)