[wp-trac] [WordPress Trac] #6814: Async media crunching

[WordPress Trac]

#6814: Async media crunching
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 Reporter:  matt                  |       Owner:  koopersmith
     Type:  enhancement           |      Status:  assigned
 Priority:  normal                |   Milestone:  Future Release
Component:  Upload                |     Version:  2.5
 Severity:  normal                |  Resolution:
 Keywords:  blessed has-dev-note  |     Focuses:  performance
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Changes (by ramon fincken):

 * keywords:  blessed => blessed has-dev-note
 * focuses:   => performance


Comment:

 Stepping in on this one .. we have some code that we ship at all our
 customers' installs, it will temporary remove the extra image sizes.
 Therefore no extra images will be created based on the original upload. It
 sets a meta flag on the uploaded item.

 On each WP call, except a new upload the thumbs will be created.
 A small snippet of this part:
 {{{#!php
 <?php
 $sql = $wpdb->prepare( 'SELECT post_id FROM '. $wpdb->postmeta . ' WHERE
 meta_key = %s LIMIT %d', $this->thumbslaterkey, $this->batch_limit );
 foreach( $wpdb->get_results( $sql ) as $thumbs_later ) {
   if( $this->init( $thumbs_later->post_id ) ) {
      delete_post_meta( $thumbs_later->post_id, $this->thumbslaterkey );
   }
 }
 }}}

 It is not said that this postmeta is the best in terms of optimization. A
 non-autoloaded option could also be used for this. However we use a batch
 limit in the SELECT clause.


 Are you interested in the whole code or the pseudocode ?

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Ticket URL: <https://core.trac.wordpress.org/ticket/6814#comment:19>
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