The Randomized Content Block XBlock only randomizes the selection of
the children blocks and has unpredictable randomization of
the order of the selected child blocks due to the usage of sets, which
are unordered, for storing the selected blocks. This becomes apparent
when all the available child blocks in a library are chosen for a
Randomized Content Block, to randomize just the order of the child
blocks and not just the selection of the blocks. The order of the
selected blocks ends up being similar for multiple learners.
This change modifies the XBlock to store the selected child blocks in
a list, instead of a set, after randomly shuffling them.
In the course outline, if a subsection has any graded content,
show a graded icon (the pencil icon).
Also, show the graded icon for LTI xmodule units (xblocks is a
different repo, but will get same treatment).
AA-75
Tests were failing due to the "404 Error" Response from an API that fetches specific asset (video transcript data) from YouTube.
I have changed it by using a mocked API response instead of direct API call to the Youtube server.
The VideoBlock `handle_ajax` is allowing NaN values for speed key
and causing videos to not load. Also added a data migration to fix
the data for learners.
PROD-1148
This is a helpful class when running an experiment, to help
bucket users and keep track of which enrollments to consider
as part of the experiment.
AA-53
Block Structures were meant to be gathered using the LMS process,
as it's meant to be an optimized store for the LMS to use. But
there's an argument to be made for at least the Collect side of
the Collect + Transform could be a Studio concern, because it
explicitly needs to avoid user-awareness.
In either event, collect() was broken on devstack before this
commit because Studio's runtime does not permit handler_url
invocation on "thirdparty" XBlocks. Since VideoBlock is not
really third-party (and it's questionable whether there's any
benefit to making the distinction these days), I'm just making
this change to allow Studio to run collect() without error in
the Studio process. This will fix devstack, which does not
properly route these collect() calls to the LMS process (because
celery runs in-proc by default).
Right now the units of a public course are hidden if there is at least a graded activity in them. This is done due to a change(69eeca61d8) that was done before the implementation of public_view mechanism for unenrolled users.
Since we use public_view now and by default it restricts the unit rendering for anonymous users we do not need to limit the access at this way for anonymous users.
Currently, video is moving one second ahead or behind on each right
and left arrow key respectively.In order to make it compliant with
the industry standards like Youtube,its step is adjusted to five
seconds.
PROD-159
