Write Post: Permalink should not be "undefined" if I click Edit, clear the field, and then click Save

[lloydbudd]

Write Post: Permalink should not be "undefined" if I click Edit, clear the field, and then click Save

ENV: WP trunk r7133 (2.5-beta1)

The result is Permalink: ​http://example.com/undefined/ [Edit]

But it doesn't actually save any change thankfully.

The expectation is that a new permalink is created based on the current post title.

ADDITIONAL DETAIL

Specifically, after publishing a post. I decide I want to change the title, and I want the URL to be updated as well. That is where my expectation comes from, and previous versions of WP worked in this manner.

Lloyd, I totally agree. The patch hopefully meets these expectations.

(In [7139]) Slug edit fix from nbachiyski. fixes #6072

This causes draft permalinks to show the post ID instead of the slug.

The main problem was that autosave didn't pass the title, so that the correct slug can be computed. Moreover, I had some stupid holes in the logic.

Tested in the following conditions:

• New post -> Automatic autosave -- uses the title at the moment of autosave
• Draft -> Edit slug
• Draft -> Edit slug and then save -- there was a problem in that case (used empty slug), which I found and fixed
• Published post -> Set a new slug
• Any post -> Set empty slug -- fallbacks to current title as Lloyd suggested

(In [7162]) Post slug fixes from nbachiyski. fixes #6072