[wp-trac] [WordPress Trac] #11929: Query objects by metadata

[WordPress Trac]

#11929: Query objects by metadata
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 Reporter:  wnorris      |       Owner:     
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  3.0
Component:  General      |     Version:     
 Severity:  normal       |    Keywords:     
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Changes (by wnorris):

 * cc: wnorris (added)


Comment:

 Here is my first stab at this functionality.  It returns an array of
 objects of the specified meta_type that have the specified
 meta_key/meta_value pair.  If the value is not specified, it returns
 objects that have any value for the specified key.

 Retrieving the object IDs is simple.  But is that enough?  It still leaves
 additional work to the plugin author to actually retrieve the object with
 the specified ID.  I went ahead and added one mechanism for populating the
 objects themselves using a new filter.  It would work fine in the case
 where only a few objects are returned from the query, or where they are
 already in the WP cache.  However, if a large number of objects are
 returned that are not in the cache, the performance is a bit less than
 optimal, since each object is populated individually.  I'm not sure how
 much of a concern that should be.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11929#comment:1>
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