Performance optimizations and cache to keep the bookmarks info updated.

The cache uses the bookmarks.XBlockCache model.

TNL-1945

common/lib/xmodule/xmodule/modulestore/search.py

@@ -6,7 +6,7 @@ from .exceptions import (ItemNotFoundError, NoPathToItem)
 LOGGER = getLogger(__name__)
 
 
-def path_to_location(modulestore, usage_key):
+def path_to_location(modulestore, usage_key, full_path=False):
     '''
     Try to find a course_id/chapter/section[/position] path to location in
     modulestore.  The courseware insists that the first level in the course is
@@ -15,6 +15,7 @@ def path_to_location(modulestore, usage_key):
     Args:
         modulestore: which store holds the relevant objects
         usage_key: :class:`UsageKey` the id of the location to which to generate the path
+        full_path: :class:`Bool` if True, return the full path to location. Default is False.
 
     Raises
         ItemNotFoundError if the location doesn't exist.
@@ -81,6 +82,9 @@ def path_to_location(modulestore, usage_key):
         if path is None:
             raise NoPathToItem(usage_key)
 
+        if full_path:
+            return path
+
         n = len(path)
         course_id = path[0].course_key
         # pull out the location names

common/lib/xmodule/xmodule/modulestore/tests/django_utils.py

@@ -18,10 +18,12 @@ from openedx.core.lib.tempdir import mkdtemp_clean
 
 from xmodule.contentstore.django import _CONTENTSTORE
 from xmodule.modulestore import ModuleStoreEnum
-from xmodule.modulestore.django import modulestore, clear_existing_modulestores
+from xmodule.modulestore.django import modulestore, clear_existing_modulestores, SignalHandler
 from xmodule.modulestore.tests.mongo_connection import MONGO_PORT_NUM, MONGO_HOST
 from xmodule.modulestore.tests.factories import XMODULE_FACTORY_LOCK
 
+from openedx.core.djangoapps.bookmarks.signals import trigger_update_xblocks_cache_task
+
 
 class StoreConstructors(object):
     """Enumeration of store constructor types."""
@@ -405,6 +407,8 @@ class ModuleStoreTestCase(TestCase):
 
         super(ModuleStoreTestCase, self).setUp()
 
+        SignalHandler.course_published.disconnect(trigger_update_xblocks_cache_task)
+
         self.store = modulestore()
 
         uname = 'testuser'