Basic user scoped feature flags #3120
Description
Desired behavior
Add the ability to toggle on or off basic feature flags for users, this will allow new features to be gated in release.
Can draw inspiration from the similar addition of functionality in https://github.com/learningequality/kolibri-data-portal/pull/187 but on a per user basis.
TODOs:
- Add 'feature_flags' JSONField to the User model
- Ensure that 'feature_flags' is serialized into the template when user data is loaded
- Add a frontend getter to the vuex session model for 'check feature flag' - this should always return true for admins, otherwise should check if the flag is set for the user
- Add ability to edit the feature flags in the admin interface user detail panel:
- Hard code list of current feature flags
- Add checkbox per flag
- Add under setting disk space section, to allow reuse of Save Changes button already present
Value add
This will allow us to more aggressively add new functionality to Studio, while limiting impact.
Possible tradeoffs
We might end up with an explosion of feature flags, which would make the JSON unwieldy. We might need to add a management command in the future to purge unused flags.