Merge pull request #1286 from MITx/feature/christina/misc

Feature/christina/misc

cms/djangoapps/contentstore/tests/test_core_caching.py

+from django.test.testcases import TestCase
+from cache_toolbox.core import get_cached_content, set_cached_content, del_cached_content
+from xmodule.modulestore import Location
+from xmodule.contentstore.content import StaticContent
+
+class Content:
+    def __init__(self, location, content):
+        self.location = location
+        self.content = content
+
+    def get_id(self):
+        return StaticContent.get_id_from_location(self.location)
+
+class CachingTestCase(TestCase):
+#   Tests for https://edx.lighthouseapp.com/projects/102637/tickets/112-updating-asset-does-not-refresh-the-cached-copy
+    unicodeLocation = Location(u'c4x', u'mitX', u'800', u'thumbnail', u'monsters.jpg')
+    # Note that some of the parts are strings instead of unicode strings
+    nonUnicodeLocation = Location('c4x', u'mitX', u'800', 'thumbnail', 'monsters.jpg')
+    mockAsset = Content(unicodeLocation, 'my content')
+
+    def test_put_and_get(self):
+        set_cached_content(self.mockAsset)
+        self.assertEqual(self.mockAsset.content, get_cached_content(self.unicodeLocation).content,
+            'should be stored in cache with unicodeLocation')
+        self.assertEqual(self.mockAsset.content, get_cached_content(self.nonUnicodeLocation).content,
+            'should be stored in cache with nonUnicodeLocation')
+
+    def test_delete(self):
+        set_cached_content(self.mockAsset)
+        del_cached_content(self.nonUnicodeLocation)
+        self.assertEqual(None, get_cached_content(self.unicodeLocation),
+            'should not be stored in cache with unicodeLocation')
+        self.assertEqual(None, get_cached_content(self.nonUnicodeLocation),
+            'should not be stored in cache with nonUnicodeLocation')
+
+
+
+

common/djangoapps/cache_toolbox/core.py

@@ -109,10 +109,10 @@ def instance_key(model, instance_or_pk):
     )
 
 def set_cached_content(content):
-    cache.set(content.get_id(), content)
+    cache.set(str(content.location), content)
 
 def get_cached_content(location):
-    return cache.get(StaticContent.get_id_from_location(location))
+    return cache.get(str(location))
 
 def del_cached_content(location):
-    cache.delete(StaticContent.get_id_from_location(location))
+    cache.delete(str(location))

rakefile

@@ -120,7 +120,7 @@ default_options = {
 }
 
 task :predjango do
-    sh("find . -type f -name *.pyc -delete")
+    sh("find . -type f -name '*.pyc' -delete")
     sh('pip install -q --upgrade --no-deps -r local-requirements.txt')
 end