Launching cancel_account signal when needed

taiga/users/api.py

@@ -44,6 +44,7 @@ from taiga.projects.serializers import StarredSerializer
 from . import models
 from . import serializers
 from . import permissions
+from .signals import user_cancel_account as user_cancel_account_signal
 
 
 class MembersFilterBackend(BaseFilterBackend):
@@ -282,5 +283,8 @@ class UsersViewSet(ModelCrudViewSet):
     def destroy(self, request, pk=None):
         user = self.get_object()
         self.check_permissions(request, "destroy", user)
+        stream = request.stream
+        request_data = stream is not None and stream.GET or None
+        user_cancel_account_signal.send(sender=user.__class__, user=user, request_data=request_data)      
         user.cancel()
         return Response(status=status.HTTP_204_NO_CONTENT)

taiga/users/signals.py

@@ -0,0 +1,20 @@
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán <bameda@dbarragan.com>
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import django.dispatch
+
+
+user_cancel_account = django.dispatch.Signal(providing_args=["user", "request_data"])