[wp-trac] [WordPress Trac] #4096: get_categories: add query hooks, wpcache argument hooks

[WordPress Trac]

#4096: get_categories: add query hooks, wpcache argument hooks
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 Reporter:  kevinB          |       Owner:  rob1n              
     Type:  enhancement     |      Status:  new                
 Priority:  normal          |   Milestone:  2.2                
Component:  Administration  |     Version:                     
 Severity:  normal          |    Keywords:  get_categories hook
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 To support plugins which want to do query filtering and/or use alternate
 wp_cache id and group (Note that the existing results filter already lets
 plugins have their way with results set.  This just lets them do it more
 efficiently).

 * Add wpcache_id and wpcache_group filters

 * Add join, where, request filters

 * apply existing results filter prior to cache update

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Ticket URL: <http://trac.wordpress.org/ticket/4096>
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