Allow custom Taxonomy, ObjectTag subclasses to customize tagging behavior #62

pomegranited · 2023-07-05T07:29:18Z

Description

Adds fields and methods to Taxonomy to support use of Taxonomy subclasses to customize tagging behavior, e.g. when returning the list of available tags. Ensures that Taxonomy instances returned from the API are cast where possible, and makes it easier for these subclasses to be used.

Also adds support for ObjectTag subclasses via cast and copy methods, however full use of this must be handled by the implementing API -- here in oel_tagging, we just assume ObjectTag.

Adds Taxonomy._taxonomy_class field to store the Taxonomy subclass that should be used to instantiate this instance.
Adds methods to Taxonomy to customize ObjectTag validation based on taxonomy, tag, and object fields, to make it easier for Taxonomy subclasses to validate the parts they care about.
Adds fields to Taxonomy for use by the system taxonomies being created: system_defined, and visible_to_authors.

Supporting information

Part of openedx/modular-learning#63, addresses openedx/edx-platform#32518 (comment)

Testing instructions

Manual testing is possible but not very useful, since we don't yet have views for these models and APIs.

But you can check that the added tests cover the expected polymorphism behavior supported by this change, and that tests are still covering 100% of the openedx_tagging module.

Other information

See openedx/edx-platform#32661 for this branch's use with content tagging.

openedx-webhooks · 2023-07-05T07:29:23Z

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so that system taxonomies can store this field and ensure no one edits them.

allowing ObjectTags to be subclassed to validate themselves with different taxonomies.

for completeness.

so that the various object tag classes can register themselves as candidates for casting/resyncing ObjectTags. * Updates tests to ensure full coverage for this change * Updates Tag model to cascade delete if the Taxonomy or parent Tag is deleted. Fixes an oversight in the data model.

openedx_tagging/core/tagging/models.py

ChrisChV · 2023-07-06T18:22:07Z

We can do this by assigning a custom ObjectTag subclass to each system taxonomy,
and using the ObjectTag class to return candidate tags with get_tags / autocompleted tags instead of using Taxonomy.

👍 to this. Yes, some system defined taxonomies need to overwrite get_tags

openedx_tagging/core/tagging/api.py

ChrisChV · 2023-07-06T20:48:18Z

@pomegranited In systems-defined taxonomies, one more field is necessary: visible. Maybe we can add that field in the Taxonomy class? Now I have no idea how to handle that in a subclass

openedx_tagging/core/tagging/models.py

openedx_tagging/core/tagging/api.py

* system_defined cannot be set with api.create_taxonomy, and is not editable once set. * adds taxonomy.visible_to_authors, which can be set to False for fully automated tagging.

to allow subclasses to be registered wherever they want to be.

…g subclasses

openedx/openedx-learning#62

ChrisChV · 2023-07-11T19:27:27Z

@pomegranited Looks good 👍

I tested this by running the tests.
I read through the code and tests with care

pomegranited · 2023-07-12T01:25:32Z

Hi @ormsbee CC @bradenmacdonald This and openedx/edx-platform#32661 are ready for your eyes :)

* uses the (overwritable) is_valid method instead of the (difficult to override) class method valid_for * moves cast_object_tag to the registry, since we had to cast ObjectTags to do ^ * removes ObjectTag base class from the registry, so we can still use cast_object_tag for validation

openedx_tagging/core/tagging/models.py

and removes the Closed vs Open ObjectTag subclasses, and registry. Tests are passing, but coverage isn't at 100%

docs/decisions/0007-tagging-app.rst

docs/decisions/0012-system-taxonomy-creation.rst

* adds optional taxonomy_class property+field to Taxonomy * adds Taxonomy cast() method to use this class * oel_tagging.api uses Taxonomy.cast() whenever practical * moves ObjectTag validation back to Taxonomy * removes ObjectTag.resync() logic -- we don't need it yet. * removes ObjectTag.object_type field -- we're not using it for anything. * squashes migrations from previous commits * reduces diff

* adds ContentTaxonomy and ContentTag proxy models * updates api to create/return ContentTaxonomy and ContentTag models * other updates to align with changes to openedx/openedx-learning#62 * fixes linting & test coverage

docs/decisions/0007-tagging-app.rst

openedx_tagging/core/tagging/models.py

bradenmacdonald · 2023-07-18T17:45:44Z

openedx_tagging/core/tagging/models.py

-        Subclasses can override this method to perform their own validation checks, e.g. against dynamically generated
-        tag lists.
+        Subclasses should override the internal _validate* methods to perform their own validation checks, e.g. against
+        dynamically generated tag lists.


It would be good to have a fully dynamic taxonomy (perhaps prime numbers or fibonacci numbers, something like that) in the test suite here. That can come in a follow-up PR though, based on learnings from the system taxonomies PR.

Yep, good idea. @ChrisChV is there time/space to cover this test case as part of your system taxonomy PR?

Yes, I will keep that in mind now that I make the changes in my PR

also updates some docs as per PR review.

bradenmacdonald · 2023-07-19T17:08:48Z

Thanks @ormsbee. Could you please hit merge on this? It seems I don't have permission and I'm not sure who else does.

ormsbee · 2023-07-19T18:16:58Z

@pomegranited has permissions. Do you mind if I wait for her to come on so that she can squash as she deems appropriate?

Also, 🤦 that I didn't put up a thread to expand your permissions to include this repo. I'll just do that now...

bradenmacdonald · 2023-07-19T18:18:38Z

@ormsbee Ah ok that's great 👍🏻 Thanks!

pomegranited · 2023-07-20T00:05:36Z

Huge thank you @bradenmacdonald , @ChrisChV and @ormsbee ! I think retaining the discussions here is important for this PR, but I don't want to muddy the main branch, so will squash + merge now.

openedx-webhooks · 2023-07-20T00:15:34Z

@pomegranited 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.

style: adds type annotations to rules

6f8556e

openedx-webhooks added the open-source-contribution PR author is not from Axim or 2U label Jul 5, 2023

pomegranited mentioned this pull request Jul 5, 2023

refactor: moves validation to ObjectTag and subclasses open-craft/openedx-learning#2

Closed

pomegranited added 2 commits July 6, 2023 08:58

feat: adds Taxonomy.system_defined field

35da04b

so that system taxonomies can store this field and ensure no one edits them.

refactor: moves validation to ObjectTag and subclasses

b94143f

allowing ObjectTags to be subclassed to validate themselves with different taxonomies.

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from 4c34a54 to bf6d6c2 Compare July 5, 2023 23:29

pomegranited added 2 commits July 6, 2023 10:16

feat: adds api.get_taxonomy

3993ad5

for completeness.

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from bf6d6c2 to 926a8d3 Compare July 6, 2023 03:59

docs: updates decisions

1280bcf

pomegranited mentioned this pull request Jul 6, 2023

feat: adds Content Tagging openedx/edx-platform#32661

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pomegranited mentioned this pull request Jul 7, 2023

Ensure the correct Taxonomy subclass is used #60

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pomegranited commented Jul 10, 2023

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pomegranited marked this pull request as ready for review July 10, 2023 05:05

pomegranited changed the title ~~refactor: moves validation to ObjectTag and subclasses #2~~ Use custom ObjectTag subclasses to customize tagging behavior Jul 10, 2023

pomegranited commented Jul 10, 2023

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pomegranited added 2 commits July 10, 2023 16:13

fix: fixes related to system-defined taxonomies

6051491

* system_defined cannot be set with api.create_taxonomy, and is not editable once set. * adds taxonomy.visible_to_authors, which can be set to False for fully automated tagging.

feat: adds "index" option to register_object_tag_class

c35cb6a

to allow subclasses to be registered wherever they want to be.

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from f260ddd to 9d07be9 Compare July 10, 2023 07:06

refactor: adds _check_taxonomy and _check_tag methods to the ObjectTa…

a8566d3

…g subclasses

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from 9d07be9 to a8566d3 Compare July 10, 2023 07:29

pomegranited added a commit to open-craft/edx-platform that referenced this pull request Jul 10, 2023

fix: adjust api and tests for changes made on

74a51e2

openedx/openedx-learning#62

pomegranited commented Jul 13, 2023

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pomegranited mentioned this pull request Jul 13, 2023

System defined taxonomies open-craft/openedx-learning#3

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bradenmacdonald reviewed Jul 13, 2023

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refactor: moves object_tag_class to the ObjectTag class

bbbb4cc

and removes the Closed vs Open ObjectTag subclasses, and registry. Tests are passing, but coverage isn't at 100%

bradenmacdonald reviewed Jul 17, 2023

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pomegranited changed the title ~~Use custom ObjectTag subclasses to customize tagging behavior~~ Allow custom Taxonomy, ObjectTag subclasses to customize tagging behavior Jul 18, 2023

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from c4f5cc7 to a7661bb Compare July 18, 2023 06:12

pomegranited force-pushed the jill/smarter-object-tags-rebase branch from a7661bb to 0807949 Compare July 18, 2023 07:21

This was referenced Jul 18, 2023

Autocomplete tags API function #59

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[Tagging] Taxonomy view/management APIs openedx/modular-learning#73

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bradenmacdonald approved these changes Jul 18, 2023

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rpenido mentioned this pull request Jul 18, 2023

refactor: allows Taxonomy to be subclassed open-craft/edx-platform#557

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fix: Taxonomy._taxonomy_class must be a subclass of Taxonomy

1094d24

also updates some docs as per PR review.

ormsbee approved these changes Jul 19, 2023

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pomegranited merged commit f5164bb into openedx:main Jul 20, 2023

pomegranited mentioned this pull request Jul 20, 2023

FAL-3449 - Taxonomy view management apis [WIP] open-craft/openedx-learning#4

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ormsbee mentioned this pull request Mar 24, 2025

add vscode pytest settings open-craft/openedx-learning#19

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ormsbee mentioned this pull request Sep 4, 2025

version bump 0.28.0 open-craft/openedx-learning#20

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Allow custom Taxonomy, ObjectTag subclasses to customize tagging behavior #62

Allow custom Taxonomy, ObjectTag subclasses to customize tagging behavior #62

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