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  1. 09 Nov, 2016 1 commit
  3. 07 Mar, 2016 1 commit
  5. 02 Dec, 2015 2 commits
    • CohortMembership Test Fixes · 88a38965 
      There are 3 main changes in this commit:
* CohortFactory now sets up memberships properly, so consuming tests do not
need to explicitly touch CourseUserGroup.users to add() users.
* test_get_cohort_sql_queries has been updated to 3 and 9 queries when using
and not using the cache, respectively. This is needed due to each operation
needing an extra queery to get the CourseUserGroup from the CohortMembership.
* Adding remove_user_from_cohort(), the counterpart to add_user_to_cohort().
This is also to keep tests from touching the users field directly, and keep
CohortMembership data in sync.
      Eric Fischer committed
    • CohortMembership Transaction Fixes · 731d85f7 
      An issue arose recently due to ATOMIC_REQUESTS being turned on by default. It
turns out that CohortMemberships had been somewhat relying on the old default
transaction handling in order to keep CohortMemberships and the underlying
CourseUserGroup.users values in-sync.

To fix this, I've made all updates to Cohortmemberships go through an
outer_atomic(read_committed=True) block. This, is conjunction with the already
present select_for_update(), will no longer allow 2 simultaneous requests to
modify objects in memory without sharing them. Only one process will be
touching a given CohortMembership at any given time, and all changes will be
immediately comitted to the database, where the other process will see them.

I've also included some changes to get_cohort(), add_user_to_cohort(), and
remove_user_from_cohort() in order to properly make use of the new
CohortMembership system.
      Eric Fischer committed
  7. 13 Jul, 2015 1 commit
  9. 06 Jun, 2015 1 commit
  11. 23 Mar, 2015 5 commits
  13. 15 Jan, 2015 2 commits
  15. 10 Dec, 2014 1 commit
  17. 05 Dec, 2014 1 commit
    • Add support for user partitioning based on cohort. · f24f01d2 
      JIRA: TNL-710

IMPORTANT: this commit converts the course_groups
package to using migrations.  When deploying to an
existing openedx instance, migration 0001 may fail
with an error indicating that the CourseUserGroup
table already exists.  If this happens, running
the 0001 migration first, with the --fake option,
is recommended.  After performing this step,
remaining migrations should work as expected.
      jsa committed
  19. 30 Oct, 2014 1 commit
  21. 01 Oct, 2014 1 commit
  23. 11 Sep, 2014 1 commit
  25. 28 Aug, 2014 1 commit
  27. 28 Jul, 2014 1 commit
  29. 29 May, 2014 1 commit
  31. 22 May, 2014 1 commit
  33. 20 May, 2014 1 commit
  35. 07 May, 2014 1 commit
    • Make course ids and usage ids opaque to LMS and Studio [partial commit] · e2bfcf2a 
      This commit updates common/djangoapps.

These keys are now objects with a limited interface, and the particular
internal representation is managed by the data storage layer (the
modulestore).

For the LMS, there should be no outward-facing changes to the system.
The keys are, for now, a change to internal representation only. For
Studio, the new serialized form of the keys is used in urls, to allow
for further migration in the future.

Co-Author: Andy Armstrong <andya@edx.org>
Co-Author: Christina Roberts <christina@edx.org>
Co-Author: David Baumgold <db@edx.org>
Co-Author: Diana Huang <dkh@edx.org>
Co-Author: Don Mitchell <dmitchell@edx.org>
Co-Author: Julia Hansbrough <julia@edx.org>
Co-Author: Nimisha Asthagiri <nasthagiri@edx.org>
Co-Author: Sarina Canelake <sarina@edx.org>

[LMS-2370]
      Calen Pennington committed
  37. 09 Apr, 2014 1 commit
  39. 07 Apr, 2014 1 commit
  41. 03 Dec, 2013 1 commit
  43. 19 Jun, 2013 1 commit
  45. 06 Feb, 2013 1 commit
  47. 25 Jan, 2013 2 commits
  49. 24 Jan, 2013 5 commits