Fixes #3305 Provide Attribute Filtering for News Export

[tadean]

This PR adds a views filter to the News Export API that understands how to translate Enterprise-wide attribute keys to local taxonomy terms.

Related issues

3305

How to test

• enable az_demo, az_enterprise_attributes_import, az_news_export
• Clear the cache
• Tag Black Holes Come to the Big Screen as audience External Media
• Visit the following URLs and verify the content appears:
  • /az_quickstart/export/az_news/v1/az_news.json?filter=not+empty
  • /az_quickstart/export/az_news/v1/az_news.json?filter=or&attribute[]=External+Media
• Verify the Black Holes content is absent:
  • /az_quickstart/export/az_news/v1/az_news.json?filter=empty

Types of changes

Arizona Quickstart (install profile, custom modules, custom theme)

• Patch release changes
  • [ ] Bug fix
  • [ ] Accessibility, performance, or security improvement
  • [ ] Critical institutional link or brand change
  • [x] Adding experimental module
  • [ ] Update experimental module
• Minor release changes
  • [ ] New feature
  • [ ] Breaking or visual change to existing behavior
  • [ ] Upgrade experimental module to stable
  • [ ] Enable existing module by default or database update
  • [ ] Non-critical brand change
  • [ ] New internal API or API improvement with backwards compatibility
  • [ ] Risky or disruptive cleanup to comply with coding standards
  • [ ] High-risk or disruptive change (requires upgrade path, risks regression, etc.)
• Other or unknown
  • [ ] Other or unknown

Drupal core

• Patch release changes
  • [ ] Security update
  • [ ] Patch level release (non-security bug-fix release)
  • [ ] Patch removal that's no longer necessary
• Minor release changes
  • [ ] Major or minor level update
• Other or unknown
  • [ ] Other or unknown

Drupal contrib projects

• Patch release changes
  • [ ] Security update
  • [ ] Patch or minor level update
  • [ ] Add new module
  • [ ] Patch removal that's no longer necessary
• Minor release changes
  • [ ] Major level update
• Other or unknown
  • [ ] Other or unknown

Checklist

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[tadean]

Topics for discussion/testing:

• Currently, the JSON feed of news might be used for a variety of purposes that we aren't aware of on Quickstart sites
• Does this change merit an additional display to constitute a new version number of the API?
• Should we provide alternate displays that still show news without attributes?

The impact of the above may be affected by the fact that this API is relatively new and it is likely that CatCloud is likely the primary or only stakeholder at this time.

[trackleft]

Should we add a dependency here on az_enterprise_attributes_import? https://github.com/az-digital/az_quickstart/blob/main/modules/custom/az_news/az_news_export/az_news_export.info.yml

[tadean]

Should we add a dependency here on az_enterprise_attributes_import? https://github.com/az-digital/az_quickstart/blob/main/modules/custom/az_news/az_news_export/az_news_export.info.yml

Attributes are provided by az_core - only the bulk creation of the individual terms comes from az_enterprise_attributes_import

[tadean]

Refactored to avoid usage of hook_field_views_data_alter() as this being a term reference field in conjunction with that hook invites the taxonomy module to replace our plugin.

This avoids needing to alter module weight.

[joeparsons]

We should update the documentation here: https://quickstart.arizona.edu/site-admin/integrations/catcloud-news-export