This is primarily to reduce load on MongoDB, where we've lately
had performance problems that we suspect are caused by very
large course structures being evicted from MongoDB's cache. This
may potentially give us a path to better performance as well,
but that's not the goal of this commit.
Surprisingly, LZ4 seemed to actually run more slowly than zlib
for this. Possibly because of some overhead in the Python
bindings? GZip was also surprisingly slow given that it uses
zlib underneath (something like 5x slower).
Use separate cache backend for caching structures.
Abstract out course structure cache.
add datadog metrics for compressed course structure sizes
Since we're using a different cache background, we don't need to have a cache prefix
Use dummy cache backend for tests.
Fallback to default cache if course_structure_cache doesn't exist.
Changed "Status Page" -> "Page".
UX:
support for displaying built-in tabs
restored drag and drop on Studio Pages
additional styling for fixed state on Studio Pages
add a new page action added to bottom of Studio Pages
Dev
changes for viewing tabs in studio,
refactored the tab code,
decoupled the code from django layer.
is_hideable flag on tabs
get_discussion method is needed to continue to support
external_discussion links for now since used by 6.00x course.
override the __eq__ operator to support comparing with
dict-type tabs.
Test
moved test code to common,
added acceptance test for built-in pages
added additional unit tests for tabs.
changed test_split_modulestore test to support serializing objects
that are fields in a Course.
Env:
updated environment configuration settings so they are
consistent for both cms and lms.
Due to issues with require.js and the latest version of the toolbar.
Also included a note in the requirements file explaining the situation, and what
needs to happen before this can be upgrade properly.
To mark a language as dark-launched, add it to the DARK_LANGUAGES
django conf setting. To activate a dark-launched language, set he
query parameter `preview-lang` to the language code on any url.
[LMS-2045]
[LMS-2077]
[LMS-2076]
(STUD-1201)
Revert "Specific django-toolbar version (stable released) and update the panels in dev envs"
This reverts commit a465b082da.
Revert "Updated settings for devstack django debug toolbar"
This reverts commit 30199e8a61.
@jzoldak showed me that setting `USE_I18N = DEBUG` didn't actually accomplish
what I had hoped it would -- changing DEBUG didn't also change USE_I18N.
This pull request accomplishes what I was trying to accomplish, without being
quite so clever about it.
A new modulestore backed by mongo that changes the data format to
facilitate easy versioning, sharing content between courses, and fast
lookup of course structure and Scope.settings data.
Conflicts:
cms/djangoapps/contentstore/tests/test_contentstore.py
DraftModuleStore was originally designed as a mixin, but never used that
way, and with the upcoming changes to use the versioned module store,
never will be. This changes removes a circular dependency between
mongo.py and draft.py.
Developers can have private settings files by creating
lms/envs/private.py or cms/envs/private.py. They are imported
at the end of dev.py. Note that they won't be imported if you
are using one of the other dev*.py variants.
