[wp-trac] [WordPress Trac] #12212: post__in can't manage empty array properly

[WordPress Trac]

#12212: post__in can't manage empty array properly
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 Reporter:  lifeless85    |       Owner:  ryan          
     Type:  defect (bug)  |      Status:  new           
 Priority:  high          |   Milestone:  Future Release
Component:  Query         |     Version:  2.9.1         
 Severity:  major         |    Keywords:  post__in      
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Comment(by chrisscott):

 The problem with specifying an empty array for `post__in` is that
 `fill_query_vars()` sets `$q['post__in']` to an empty array if it isn't
 specified in the query so the elseif statement never evals to true.

 It seems to me like this doesn't need to be changed and instead you should
 be handling passing an empty array to `posts__in` in your code that calls
 the query.

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Ticket URL: <http://core.trac.wordpress.org/ticket/12212#comment:3>
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