feat: add new content event signals

[rpenido]

Description

Use the following OpenEdxPublicSignal events triggered by content creation and editing.

• XBLOCK_CREATED and XBLOCK_UPDATED
• COURSE_CREATED
• CONTENT_LIBRARY_CREATED, CONTENT_LIBRARY_UPDATED and CONTENT_LIBRARY_DELETED
• LIBRARY_BLOCK_CREATED, LIBRARY_BLOCK_UPDATED and LIBRARY_BLOCK_DELETED

These events will be used in the Content Tagging app for System-defined automatic tagging to trigger updates on any automatically-generated system taxonomy tags.

This PR introduces a breaking change because it changes the following events from django.Signal to OpenEdxPublicSignal:

• CONTENT_LIBRARY_CREATED
• CONTENT_LIBRARY_UPDATED
• CONTENT_LIBRARY_DELETED
• LIBRARY_BLOCK_CREATED
• LIBRARY_BLOCK_UPDATED
• LIBRARY_BLOCK_DELETED

Supporting information

• System-defined automatic tagging
• [Tagging] Discovery + ADR: System Defined Taxonomies modular-learning#61
• [Tagging] Implement content event signals modular-learning#78

Testing instructions

Get latest version of openedx-events:

1. Clone openedx-events repository to ~/workspace/src/openedx-events

git clone git@github.com:openedx/openedx-events.git --branch 'v8.3.0'

2. Install the develop package in lms and studio

./in lms pip install -e /edx/src/openedx-events
./in studio pip install -e /edx/src/openedx-events

Setup frontend-app-library-authoring if not done before:

1. Add the following to a new cms/envs/private.py file.

from .devstack import FEATURES
FEATURES['ENABLE_LIBRARY_AUTHORING_MICROFRONTEND'] = True
BLOCKSTORE_API_AUTH_TOKEN = 'edxapp-insecure-devstack-key'

2. Set up the blockstore to run in devstack (ref) by running the following from the studio shell (make studio-shell):

# Configure blockstore to run inside LMS/Studio (instead of as an external service)
./manage.py cms waffle_switch --create blockstore.use_blockstore_app_api on

./manage.py cms shell  # enter python code below

# Create a "Collection" that new content libraries / xblocks can be created within:
from blockstore.apps.bundles.models import Collection
coll, _ = Collection.objects.get_or_create(title='Devstack Content Collection', uuid='11111111-2111-4111-8111-111111111111')

# Create an "Organization":
from organizations.models import Organization
Organization.objects.get_or_create(short_name='DeveloperInc', defaults={'name': 'DeveloperInc', 'active': True})

Then:

1. Start lms and studio using make dev.up.lms+studio+frontend-app-learning+frontend-app-library-authoring
2. Add below snippet somewhere, for example in cms/djangoapps/contentstore/signals/handlers.py:

from openedx_events.content_authoring.signals import (
    XBLOCK_CREATED,
    XBLOCK_UPDATED,
    COURSE_CREATED,
    CONTENT_LIBRARY_CREATED,
    CONTENT_LIBRARY_UPDATED,
    CONTENT_LIBRARY_DELETED,
    LIBRARY_BLOCK_CREATED,
    LIBRARY_BLOCK_UPDATED,
    LIBRARY_BLOCK_DELETED,
)
XBLOCK_CREATED.connect(lambda **x: print("test_event: ", x))
XBLOCK_UPDATED.connect(lambda **x: print("test_event: ", x))
COURSE_CREATED.connect(lambda **x: print("test_event: ", x))
CONTENT_LIBRARY_CREATED.connect(lambda **x: print("test_event: ", x))
CONTENT_LIBRARY_UPDATED.connect(lambda **x: print("test_event: ", x))
CONTENT_LIBRARY_DELETED.connect(lambda **x: print("test_event: ", x))
LIBRARY_BLOCK_CREATED.connect(lambda **x: print("test_event: ", x))
LIBRARY_BLOCK_UPDATED.connect(lambda **x: print("test_event: ", x))
LIBRARY_BLOCK_DELETED.connect(lambda **x: print("test_event: ", x))

2. Open studio in http://localhost:18010/ and login with staff@example.com / edx
3. Open studio logs monitoring:

make studio-logs | grep test_event:

5. Create a course
   Check the log for COURSE_CREATED and the XBLOCK_UPDATED event data
6. Create a section
   Check the log for XBLOCK_CREATED event data
7. Create a subsection
   Check the log for XBLOCK_CREATED event data
8. Edit a subsection name
   Check the log for XBLOCK_UPDATED event data
9. Create a unit
   Check the log for XBLOCK_CREATED event data
10. Visit the Libraries tab, it should take you to Content Libraries V2 MFE: http://localhost:3001
11. Create a new library for the Org created on setup
    Check the log for CONTENT_LIBRARY_CREATED event data
12. Edit the name of the library
    Check the log for CONTENT_LIBRARY_UPDATED event data
13. Add a block to the library, e.g Text block
    Check the log for LIBRARY_BLOCK_CREATED event data
14. Edit the name of the block
    Check the log for LIBRARY_BLOCK_UPDATED event data

Deadline

TBD

Other information

Depends on openedx/openedx-events#244

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[pomegranited]

This is looking good @rpenido ! We have an open discussion about the changed library events, and this suggestion plus these changes should fix the test failures.

Could you also please update this PR to give some more context on why we're making these changes? These signals will be used by the Content Tagging app, to trigger updates on any automatically-generated system taxonomy tags.

You can reference this openedx/modular-learning#61 in the More Info section too.

[pomegranited]

@rpenido This is working well and looking good. ☀️

There's a couple of minor changes to be made and one outstanding question:

• remove the time param from the send_event calls in xmodule and content_libraries.
• should we strip out the block usage_key version and add it as a kwarg?

Your instructions for testing block creation/updates worked exactly as described, and I was able to test the content libraries events using the steps below. Running the tests locally is also working for me. I'll approve once the changes/questions are resolved. 👍

Steps to enable and test content libraries:

• Add frontend-app-library-authoring to the list of services you're running along with Studio et al

• Add the following to a new cms/envs/private.py file (may need to restart studio to pick up these changes, using make studio-restart:

  from .devstack import FEATURES
  FEATURES['ENABLE_LIBRARY_AUTHORING_MICROFRONTEND'] = True
  BLOCKSTORE_API_AUTH_TOKEN = 'edxapp-insecure-devstack-key'

• Set up the blockstore to run in devstack (ref) by running the following from the studio shell (make studio-shell):

  # Configure blockstore to run inside LMS/Studio (instead of as an external service)
  ./manage.py cms waffle_switch --create blockstore.use_blockstore_app_api on

  ./manage.py cms shell  # enter python code below
  
  # Create a "Collection" that new content libraries / xblocks can be created within:
  from blockstore.apps.bundles.models import Collection
  coll, _ = Collection.objects.get_or_create(title='Devstack Content Collection', uuid='11111111-2111-4111-8111-111111111111')
  
  # Create an "Organization":
  from organizations.models import Organization
  Organization.objects.get_or_create(short_name='DeveloperInc', defaults={'name': 'DeveloperInc', 'active': True})

• Now, you can login to Studio, and visit the Libraries tab, it should take you to Content Libraries V2 MFE: http://localhost:3001
  (This is still very much WIP, and so it's not very nice to use yet.)

• Create a new library for the Org created above, and watch the "library created" event happen in the Studio logs

• Update the library, and watch for the event

• Add a block to the library, e.g Text block, and watch for the "library block created" event

• Update the block, and watch for the "library block updated" event

[pomegranited]

👍 This looks and works great @rpenido ! Ok to take it out of Draft to prepare for upstream review.

• I tested this using the excellent PR test instructions
• I read through the code
• I checked for accessibility issues N/A
• Includes documentation for the added signals.
• Commit structure follows OEP-0051

[navinkarkera]

@rpenido Nice work! Just added a suggestion regarding event handlers, everything else looks good. Please rebase and resolve the conflicts. Noting down few observations.

• Noticed a weird behaviour when updating a vertical xblock. If you change the name and press enter, XBLOCK_UPDATED event is fired twice (probably the block is saved twice). If you change the name and click outside, the block is saved once and a single event is fired. Not sure if it has major effect but just wanted to bring this up.
• XBLOCK_UPDATED as well as XBLOCK_PUBLISHED events are fired whenever an XBlock is published.

[rpenido]

@navinkarkera I think this is ready for review again!

[navinkarkera]

@rpenido Please change the status from draft to ready if it is ready as well as rebase it.

[rpenido]

@rpenido Please change the status from draft to ready if it is ready as well as rebase it.

Done @navinkarkera !

[navinkarkera]

👍

• I tested this: emits events as expected
• I read through the code
• I checked for accessibility issues
• Includes documentation
• I made sure any change in configuration variables is reflected in the corresponding client's configuration-secure repository.

[openedx-webhooks]

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[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.