Order snippets descending by most recently created

[johnnyporkchops]

Summary

Content team wants to see the most recently created snippets on page 1

• Resolves Wagtail wish list: Ability to put snippets in order so the most used are on page 1. #5608

Possible future work:
Wagtail 4 will have a ton of new ways to handle Snippets, including adding sortability in the admin panel, although the implementation looks a bit complex at first glance of the docs.

Required reviewers

one person (frontend or content)

Impacted areas of the application

new file:   home/migrations/0125_alter_embedsnippet_options.py
modified:   home/models.py

Screenshots

Page one of Snippets

How to test

Content team: This is pushed to dev space for testing: https://dev.fec.gov/
Developers:

• checkout and run branch
• Go to Wagtail admin > Snippets
• Confirm that snippets are ordered newest to oldest
• You can view the snippet ID on the table-row in the inspector, <tr id="snippet-row-29">

[dorothyyeager]

Thanks for this @johnnyporkchops - the one thing though is we wanted them in the order of most used. In most cases this is the most recently created, but there's one snippet at the very end of the last page - "Archive of past years' coordinated party expenditure limits" - that we were hoping could slide onto page 1 too.

Basically what we need up front;

1. COVID snippet
2. Contribution limit table for the most recent cycle
3. Contribution limit footnotes for the most recent cycle
4. Archive of coordinated party expenditure limits

After those four, the order doesn't really matter and the way you have them is fine.

Is it possible to do this? (Perhaps by putting them in order of most recently updated?)
One more thought - after May, it's likely we won't need the COVID snippet much anymore. So if it can be done in the order of "most recently updated" then that might work the best for content.

[johnnyporkchops]

@dorothyyeager There is not option to ordeer by updated-date like you could for a Page . The only fields in Snippets to order by are:
ID (number)(which is what I used for ordering by last-created)
Title (alpha)
Description (alpha)
Text (alpha)

• So you could come up wtih a convenntion for prepending a number or alpha letter to the Title field and then I could order by that field (that field does not show on the page when its published)
• There is also ability to add Tagging to Snippets like images and documents and you could come up with a tagging connvention that I might(might) be able to order by.

But I think you'll agree that alll of that is too complicated to get into just for ordering them in the admin.

I can either push this PR as is if you think it helps or we can wait for Wagtail 4 where there is sorting capability built-in and
other configurable options.

[dorothyyeager]

@johnnyporkchops Thanks for clarifying. I agree, let's push this PR as it is since it will push the COVID snippet and the contribution snippets up. And then we can revisit in Wagtail 4.0. Thanks!