[wp-trac] [WordPress Trac] #52145: Prevent exception when no author

[WordPress Trac]

#52145: Prevent exception when no author
--------------------------+-----------------------------
 Reporter:  shaunjeffrey  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:  trunk
 Severity:  normal        |   Keywords:
  Focuses:                |
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 An additional check for when $author is false should be added to `wp-
 admin/includes/media.php:3291` in order to prevent an exception from being
 thrown.

 One example is when images are added to the media library via an import
 script. If the author is not defined, then an exception will be thrown
 when attempting to edit the media post, as you cannot call the method
 exists on a non-object.

 The easiest way to get around this issue is to simply check to ensure that
 $author is not empty.

     # wp-admin/includes/media.php:3291 - Change the conditional to include
 a check for $author.
     if ( $author && $author->exists() ) {

 [https://github.com/shaunjc/WordPress/commit/d939e85767f51f4b13c4ae7c6385d57ce8ab6fa9]
 [https://github.com/WordPress/WordPress/pull/507]

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Ticket URL: <https://core.trac.wordpress.org/ticket/52145>
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