Modify the existing login api in a way that
it will allow the user to login via username as well.
currently it is only allowing email to log the user in.
VAN-445
Previously, ProblemBlock's implementation was split between
CapaMixin/CapaFields (in capa_base.py) and ProblemBlock
(in capa_module.py), the former being the base classes of the
latter. The split existed for a historical reason:
as a former XModule, ProblemBlock was once split
between CapaDescriptor (author-facing) and CapaModule
(learner-facing). Since ProblemBlock has been converted
to being a pure XBlock, the division between the base
classes and the block class are no longer necessary
nor semantically helpful.
docs: Flesh out ProblemBlock's docstring a bit.
We don't need to execute instuctor code for the problem response
report because we're grabbing existing student state and scores.
Running codejail is expensive, slow, and risks report failures if
there is CPU intensive instructor code that is run at times when
the servers are already heavily loaded (and things start timing
out). This came up in TNL-8183 (and many others).
This:
1. Introduces a new override using the `pluggable_override` decorator.
It is now possible to specify a custom way of getting XBlock's icon
by defining `GET_UNIT_ICON_IMPL` in settings.
2. Introduces a way to add custom `XBLOCK_MIXINS` by defining
`XBLOCK_EXTRA_MIXINS` in settings. This allows, e.g. to add
new fields to XBlocks.
This fixes TNL-7973 [1].
Background
----------
> An alert was sent out because a malformed capa problem caused block
> transformers to fail to run.
> This specific error/alert was triggered when an optionresponse problem
> lacked text. The authoring-based fix is to edit the offending
> option-response problem to remove the empty option.
> Expected behavior: We should be able to keep the error local to the
> ProblemBlock and not blow up the whole course publish block
> transformer collection process.
> This is a really easy error for authors to make, and the consequences
> to them (one problem doesn’t work) are disproportionate to the
> consequences [...] (alerting triggered).
- [1] https://openedx.atlassian.net/browse/TNL-7973
Video SJSON transcripts are supposed to be UTF-8 encoded, but SJSON
is an ad hoc thing we made up to make it easier to build the
transcripts viewer in the VideoBlock, and it's not well specified.
Prior to this commit, if you had an SJSON file with Latin-1 encoded
text outside the standard ASCII range (e.g. û), then we'd error out
while trying to export it.
This was blocking an effort to export some Old Mongo courses (TNL-8007).
Exposed the Date header on the outline api so clients can accurately compute times relative to the dates returned by the API; this was previously done with the course API (#26979)
Browser time is notoriously unreliable for this, especially for a Learner-facing countdown call-to-action based on the access expiration date. (REV-2126)
Using the Date header for this allows the client to make use of information that is already sent, does not require additional calls nor modifying the API, and could be generalized to more or all our APIs without modifying them.
