[wp-trac] [WordPress Trac] #27736: Save one query when inserting a new post

[WordPress Trac]

#27736: Save one query when inserting a new post
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 Reporter:  ozh                |       Owner:  pbearne
     Type:  enhancement        |      Status:  reopened
 Priority:  normal             |   Milestone:  7.0
Component:  Posts, Post Types  |     Version:  3.0
 Severity:  normal             |  Resolution:
 Keywords:  needs-patch        |     Focuses:  administration, performance
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Comment (by peterwilsoncc):

 Replying to [comment:13 westonruter]:
 > Maybe a better approach would be to call `update_post_cache()` so that
 when `wp_set_post_categories()` runs it has access to to the `post_type`
 and `post_status` in the object cache?

 The call to `get_post_type()` already primes the cache (via `get_post` via
 `WP_Post`) so calling `update_post_cache()` will result in the same number
 of queries, the location would just change.

 However, looking at `wp_insert_post()` even with this change the post will
 end up being queried with the call to `$current_guid = get_post_field(
 'guid', $post_id );` so passing the data to `wp_set_post_categories()` may
 not have an effect on the number of queries anyway.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27736#comment:15>
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