[wp-trac] [WordPress Trac] #15049: postavoid add_metadata to insert duplicated entries

[WordPress Trac]

#15049: postavoid add_metadata to insert duplicated entries
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 Reporter:  leogermani   |       Owner:                                
     Type:  enhancement  |      Status:  new                           
 Priority:  normal       |   Milestone:  Awaiting Review               
Component:  Database     |     Version:  3.1                           
 Severity:  normal       |    Keywords:  metadata, post_meta, user_meta
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Comment(by Denis-de-Bernardy):

 Also, I'd change the patch so it fetches the meta using the API and use
 in_array(). The typical use case for add_meta is to insert an additional
 value in an array. There are good chances it's in the cache when it gets
 called.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15049#comment:4>
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