From 135d705df80c5334299bdb41ddd539772d31c4f5 Mon Sep 17 00:00:00 2001
From: Martin Burchell <martinb@aptivate.org>
Date: Wed, 29 Jul 2015 14:41:23 +0100
Subject: [PATCH] Made last_modified on item update when term added
---
django/website/data_layer/models.py | 12 ++++++++++++
django/website/data_layer/tests/item_tests.py | 15 +++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/django/website/data_layer/models.py b/django/website/data_layer/models.py
index d1d36eb3..68779919 100644
--- a/django/website/data_layer/models.py
+++ b/django/website/data_layer/models.py
@@ -1,4 +1,5 @@
from django.db import models
+from django.dispatch.dispatcher import receiver
from django.utils import timezone
from taxonomies.models import Term
@@ -11,6 +12,10 @@ class DataLayerModel(models.Model):
class Meta:
abstract = True
+ def note_external_modification(self):
+ self.last_modified = timezone.now()
+ self.save()
+
class Message(DataLayerModel):
body = models.TextField()
@@ -45,3 +50,10 @@ class Message(DataLayerModel):
# TODO: rename this class
Item = Message
+
+
+@receiver(models.signals.m2m_changed, sender=Item.terms.through,
+ dispatch_uid="data_layer.models.terms_signal_handler")
+def terms_signal_handler(sender, **kwargs):
+ instance = kwargs.get('instance')
+ instance.note_external_modification()
diff --git a/django/website/data_layer/tests/item_tests.py b/django/website/data_layer/tests/item_tests.py
index 8549187f..90ab4d95 100644
--- a/django/website/data_layer/tests/item_tests.py
+++ b/django/website/data_layer/tests/item_tests.py
@@ -4,6 +4,7 @@ from django.utils import timezone
from factories import ItemFactory
from ..models import Item
+from taxonomies.tests.factories import TermFactory
import datetime
from mock import patch, MagicMock
@@ -35,3 +36,17 @@ def test_last_modified_date_updates_on_body_change():
item.save()
assert orig_last_modified < last_modified(item)
+
+
+@pytest.mark.django_db
+def test_last_modified_date_updates_on_category_change():
+ item = ItemFactory()
+ magic_mock = MagicMock(wraps=timezone.now,
+ side_effect=now_iter(timezone.now()))
+
+ with patch('django.utils.timezone.now', new=magic_mock):
+ orig_last_modified = last_modified(item)
+ term = TermFactory()
+ item.terms.add(term)
+
+ assert orig_last_modified < last_modified(item)
--
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