Remove _edit_lock on save or exit

[AaronCampbell]

I see the functions wp_check_post_lock and wp_set_post_lock, but I don't see any wp_release_post_lock. Am I missing it? It seems like a lock should be lifted when the user navigates away from that page (either by saving or by going to another location/exiting). Currently, the warnings seems misleading.

[Denis-de-Bernardy]

I'd like to see this one fixed in WP 2.8 and will offer $25 to whoever submits the patch that makes it into WP 2.8. Email sales at semiologic.com to collect the bounty.

[Denis-de-Bernardy]

there currently is this line:

$time_window = apply_filters( 'wp_check_post_lock_window', AUTOSAVE_INTERVAL * 2 );

in other words, the lock's time window is rather short. we'd only ever get a lock when two users edit a post, one after the other.

suggested fix:

• We add an onUnload event to the page using jQuery
• onUnload even sends an ajax request to remove the lock

[Denis-de-Bernardy]

moving to Future, pending a patch

[azaozz]

Tested running a release_lock function with ajax on window.onunload. The problem is that when the user reloads the write page, the lock is removed with the ajax and added back with the normal request. If the ajax is delayed (internet routing problems, packet loss, etc.), it may arrive after the normal reload request and the post will be unlocked until the next autosave.

In that terms decreasing the $time_window to AUTOSAVE_INTERVAL + 35 seems better (30 sec. is the default connection timeout).

[azaozz]

Closed as duplicate of #18515.