[wp-trac] [WordPress Trac] #13905: No sanity check in map_meta_cap caps throws PHP notices

[WordPress Trac]

#13905: No sanity check in map_meta_cap caps throws PHP notices
--------------------------+-------------------------------------------------
 Reporter:  filosofo      |       Owner:           
     Type:  defect (bug)  |      Status:  new      
 Priority:  normal        |   Milestone:  3.0.1    
Component:  Post Types    |     Version:  3.0      
 Severity:  normal        |    Keywords:  has-patch
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 `map_meta_cap` assumes that the ID which it's passed when evaluating
 `edit_post`, `edit_page` and the like actually belongs to a real post
 object.

 In fact, it's quite possible that the object doesn't yet exist (creating a
 new object, perhaps) or doesn't exist any more (deleted), or that it has
 otherwise received a syntactically correct ID value that doesn't map to an
 existing post object (0, e.g.).

 Instead, `map_meta_cap` should check that the post object actually exists
 before attempting to branch on its properties.

 Patch also removes some apparent debugging comments.

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Ticket URL: <http://core.trac.wordpress.org/ticket/13905>
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