Import GUID functionality no longer works

[peterjanes]

WordPress used to preserve GUIDs when importing from RSS feeds. (See ​Changeset 2193.) Now that the importer uses wp_insert_post that no longer works, since that method ​always overwrites the GUID with the permalink.

I haven't seen anything that suggests this was a deliberate change, and the RSS and WordPress importers still appear to determine posts' GUIDs so they can be preserved, so I have attached a patch against WP 2.3.2 that changes wp_insert_post to accept and use a guid if provided.

[westi]

Thank you for your patch.

However it does not apply correctly to WordPress trunk.

Could you recreate your patch against a clean checkout of trunk and then I will ensure it gets committed.

[peterjanes]

Patch against trunk

[peterjanes]

Here's the new patch from current SVN. It also picks up a change to the RSS importer where <guid> without any attributes isn't recognized.

[westi]

(In [6593]) Ensure that we preserve GUIDs when importing from RSS. Fixes #5589 props peterjanes.

[jeremyclarke]

Thanks so much peterjanes and westi! This will be very useful for aggregators!