Make WordPress Core

Opened 12 years ago

Closed 9 years ago

#21172 closed defect (bug) (duplicate)

Adding the first filter/action in an earlier priority during a later priority causes the earlier priority to run (last)

Reported by: devesine's profile devesine Owned by:
Milestone: Priority: normal
Severity: normal Version: 3.4
Component: Plugins Keywords: dev-feedback needs-refresh
Focuses: Cc:


During testing of #21169, it occurred to me that might present a problem with each rather than next/current, but that turns out not to be the case. Instead, this exposed a different bug:

If you add a new filter at priority 9, when priority 9 did not previously have any filters, during the priority 10 execution, the priority 9 filter will run (!) after all other priorities (since the filters are not resorted after each priority).

(Generally, if you add an earlier priority that did not previously have any filters during a later priority...)

The attached unit test demonstrates this behavior.

Attachments (3)

add-at-9-unit.patch (792 bytes) - added by devesine 12 years ago.
add-at-9-after-21169.patch (2.0 KB) - added by devesine 12 years ago.
add-at-9-include-21169.patch (3.0 KB) - added by devesine 12 years ago.

Download all attachments as: .zip

Change History (8)

#1 @scribu
12 years ago

  • Cc scribu added

#2 @devesine
12 years ago

Proposed solution: keep track of the current priority, skip any priorities encountered that are already past.

add-at-9-after-21169.patch applies after the patch attached to #21169; add-at-9-include-21169.patch includes that patch (for convenience of testing).

I can also write one against the present code (using next()/current() rather than each()) if/when that becomes appropriate. Doing it without the #21169 change would slightly change the implementation of this fix (to use key($wp_filter[$tag]) instead of $next['key'], I believe).

#3 @devesine
12 years ago

  • Keywords has-patch added

#4 @chriscct7
9 years ago

  • Keywords dev-feedback needs-refresh added; has-patch removed

#5 @DrewAPicture
9 years ago

  • Milestone Awaiting Review deleted
  • Resolution set to duplicate
  • Status changed from new to closed

This seems like a duplicate for #17817 which has a roadmap for merge approval.

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