[wp-trac] [WordPress Trac] #18642: _edit_lock timestamp does not update on autosave() of non-changed, non-draft posts

[WordPress Trac]

#18642: _edit_lock timestamp does not update on autosave() of non-changed, non-
draft posts
--------------------------+-----------------------------------
 Reporter:  benbalter     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Autosave      |    Version:  3.3
 Severity:  minor         |   Keywords:  2nd-opinion has-patch
--------------------------+-----------------------------------
 Admin_ajax does not properly update the _edit_lock timestamp in posts
 when:

 1. The post->post_status != draft, and
 1. The content of the post has not changed since the last autosave ping

 '''STR:'''

 1. Open up a post, page, or CPT that's either private or published
 1. (wait 2 minutes or 2x your autosave ping, don't make any changes to the
 content)
 1. Log in as another user and navigate to the post
 1. User # 2 now has the file lock because User # 1's timestamp has expired

 '''The Problem:'''

 Lines 282 - 283 of autosave.dev.js (trunk) only POSTs auto_draft if it is
 "1".

 Lines 985 - 992 expect non-auto_draft autosaves to post auto_draft as !=
 1.

 Possibly Helpful for Background: r12991

 '''So three possible scenarios:'''

 1. Initial autodraft, auto_draft is posted as 1, line 992 updates
 _edit_post
 1. Post content has changed, it's a true autosave, so _edit_lock gets
 update through edit_post()
 1. Post content has not changed, it's not an autodraft, so auto_draft is
 not POSTed, and the lock is never updated.

 ''Auto_draft will always either be 1 (and thus ID ='s 0) or not POST'd at
 all. Admin Ajax erroneously assumes it will be posted as != 1 when not an
 autodraft.''

 '''Proposed Fix:'''

 If auto_draft is not set, update post lock. (patch attached).

 Alternatively, could patch autosave.js to pass auto_draft of 1 on every
 non-auto_draft call.

 (tested against trunk)

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Ticket URL: <http://core.trac.wordpress.org/ticket/18642>
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