[wp-trac] [WordPress Trac] #8753: Filter 'upload_dir' is called excessively for (seemingly) no reason

WordPress Trac wp-trac at lists.automattic.com
Mon Dec 29 22:52:27 GMT 2008

#8753: Filter 'upload_dir' is called excessively for (seemingly) no reason
 Reporter:  ulfben        |       Owner:  anonymous                                                        
     Type:  defect (bug)  |      Status:  new                                                              
 Priority:  normal        |   Milestone:  2.8                                                              
Component:  General       |     Version:  2.7                                                              
 Severity:  normal        |    Keywords:  upload_dir, custom upload dir, filter,  media library, empty runs
 Since 2.7 I started getting a lot of bug reports from users of my plugin:
 [http://wordpress.org/extend/plugins/custom-upload-dir/ Custom Upload
 Dir]. It hooks into the '{{{upload_dir}}}'-- filter and massages the paths
 according to the users preferences.

 The problem is that the filter seems to be run '''excessively''' and from
 some very strange places:

 Since 2.7 {{{upload_dir}}} is run whenever we visit the WordPress' Media
 Library. On my development install with ~1400 files and 160 pages in the
 Media Library, the filter is run about '''160 times''' for viewing the
 first page...

 It is run whenever we delete an attachment. It is run from
 {{{wp_get_attachment_url}}} and from {{{wp_get_attachment_image_src}}} -
 meaning that anyone using the
 plugin Cleaner Wordpress Gallery]-plugin will have  {{{upload_dir}}}
 called '''four times''' per thumbnail displayed...

 Naturally I have updated my plugin to quick bail and do nothing on these
 dry runs. But my question is - is the behaviour intentional?

Ticket URL: <http://trac.wordpress.org/ticket/8753>
WordPress Trac <http://trac.wordpress.org/>
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