[wp-trac] [WordPress Trac] #17019: context arg for WP_Query filter application

[WordPress Trac]

#17019: context arg for WP_Query filter application
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 Reporter:  kevinB       |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Query        |     Version:
 Severity:  normal       |  Resolution:
 Keywords:  has-patch    |
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Comment (by scribu):

 > Yes, I can use the context arg to return the value unfiltered, but isn't
 that needless overhead which will be noted as plugin performance drag but
 could be avoided via more strategic filter application?

 You're merely replacing the overhead caused by extra function calls with
 overhead caused by extra ifs checks.

 Given that add_filter() and apply_filters() are called so many times
 throughout a request, I'd be very surprized if this "strategic
 application" would yield any speed improvements.

 Anyway, first rule of optimization: show me the tests.

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Ticket URL: <http://core.trac.wordpress.org/ticket/17019#comment:20>
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