[wp-trac] [WordPress Trac] #36891: Saving large menus is super slow

[WordPress Trac]

#36891: Saving large menus is super slow
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 Reporter:  pento        |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Future Release
Component:  Menus        |     Version:
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:  administration, performance
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Comment (by pento):

 I'm inclined to bail early in `wp_update_nav_menu_item()` - that way, we
 get to avoid all of the `update_post_meta()` calls, too.

 Alternatively, it might be useful to check if each post meta item has
 changed before updating it - that way, even menu items that have changed
 update faster.

 As `wp_update_post()` already retrieves the post before updating, we could
 probably do a similar sanity check there.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36891#comment:3>
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