Auto Incrementing Numbers

[zaneadix]

Is your feature request related to a problem? Please describe.
Auto-incrementing number fields. As items are added to a collection the default number value is incremented.

Describe the solution you'd like
Number widgets could have an auto-increment parameter?

Describe alternatives you've considered
If it's possible to implement this as a custom widget, I'd be more than happy to do that but I've been digging through widget props and some source code an am not sure if there's anything I can leverage to accomplish this.

Additional context
I'm using netlify-cms to manage a podcast and need episode numbers. I was going to just set them in the rss feed as I iterate over the episodes (just set the index) but this wouldn't be reliable in the case that an episode gets deleted at some point

[erquhart]

The challenge here is reading the number field from every other entry in the collection, data that widgets don't currently have access to. This should be made possible, though.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[erquhart]

The other challenge is when using the editorial workflow, and multiple unpublished entries have an incrementing field, its value really needs to be set at publish time (#1348).

[eduncan911]

subscribing... currently converting our site with about 1400 pieces of different content, and everything is key'd via auto-incrementing IDs in the URLs.

I can't ask the admins to "pick a number" in the CMS. Doh.

Right now, I think I am going to have to fake a lot of the numbers in loops with int++. Thing is, some items are hidden and the numbers are consecutive.