Unhelpful/Confusing error handling when creating pages

[davelopez]

Describe the bug If you omit the identifier when creating a page you get a rather "technical" and cryptic error. Also, it looks like the annotation is a required value (but it isn't) while the identifier, which is required, doesn't look like that.

Detected during 24.0 release testing.

Galaxy Version and/or server at which you observed the bug Galaxy Version: At least 23.1 Commit: (run git rev-parse HEAD if you run this Galaxy server)

To Reproduce Steps to reproduce the behavior:

1. Go to https://usegalaxy.org/pages/create
2. Enter a name (or not) but keep the ´identifier´ field empty
3. Click Save
4. See error

Expected behavior Instead of the raw error response, the Indetifier field should be decorated with a more user-friendly error. Also, the annotation seems to catch more attention than the Identifier while it is optional.

Screenshots

[hexylena]

the identifier could be generated (or auto suggested) from the title with the history slugging algorithm

[davelopez]

I guess the slugging algorithm lives in the backend, I can't remember right now, but it would be helpful to have it directly in the front end so you can generate it as you type the name, and stop auto-generating if you manually edit it.

[hexylena]

yeah I mean lowercasing + s/ /-/g; is probably sufficient, doesn't need to copy it exactly.