[wp-trac] [WordPress Trac] #18016: Running wp_ actions on backend

[WordPress Trac]

#18016: Running wp_ actions on backend
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 Reporter:  thomask       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  3.2
 Severity:  normal        |   Keywords:
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 I'm not sure if this is a bug, feature or just unclear documentation, but
 IMO it is something what was not planned at the begining: if you look in
 the Codex about the actions
 (http://codex.wordpress.org/Plugin_API/Action_Reference), there are many
 actions which are under "Actions Run During a Typical Request", but are
 not under "Actions Run During an Admin Page Request" - there are similar
 functions with admin_prefix. E.g. wp_head, wp_enqueue_scripts etc.
 From this Codex i would guess that those action do NOT run under Admin
 page request, but it is not true - they are started.
 Under that "Actions Run During an Admin Page Request" there is also wp*
 action, what could mean, that any wp* action runs as well, so it may be
 intentional, but from that fact that they are explicitly listed  on first
 list and not on the second, i guess that it is wrong.
 A also think that it is wrong by design - probably there are minimum to
 zero actions, which you need to do both at admin AND frontend
 simultaneously - so now many plugins wrongly run scripts or include
 something in header of backend unnecessarily, what slows down backend, few
 of them noticed this problem so they they use !is_admin()

 So solution could be
 a) do not run all wp* actions on backend (but it may destroy some admin
 related plugins whoose authors do not notice the admin_ prefixed
 alternatives)
 b) or clarify the Codex and maybe create something like frontend_ prefixed
 actions, for those who want to address just the frontend

 P.S.: this "bug" is for all versions, not just 3.2

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Ticket URL: <http://core.trac.wordpress.org/ticket/18016>
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