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Ignore:
Timestamp:
09/25/2015 03:58:59 AM (5 years ago)
Author:
boonebgorges
Message:

Introduce metadata for taxonomy terms.

Adds a new table to the database schema (wp_termmeta), and a set of
*_term_meta() API functions. get_terms() and wp_get_object_terms()
now also support 'meta_query' parameters, with syntax identical to other
uses of WP_Meta_Query.

When fetching terms via get_terms() or wp_get_object_terms(), metadata for
matched terms is preloaded into the cache by default. Disable this behavior
by setting the new $update_term_meta_cache paramater to false.

To maximize performance, within WP_Query loops, the termmeta cache is *not*
primed by default. Instead, we use a lazy-loading technique: metadata for all
terms belonging to posts in the loop is loaded into the cache the first time
that get_term_meta() is called within the loop.

Props boonebgorges, sirzooro.
See #10142.

File:
1 edited

Legend:

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  • trunk/src/wp-includes/default-filters.php

    r34270 r34529  
    202202add_filter( 'title_save_pre',           'trim'                                );
    203203add_filter( 'get_comment_metadata',     'wp_lazyload_comment_meta',     10, 2 );
     204add_filter( 'get_term_metadata',        'wp_lazyload_term_meta',        10, 2 );
    204205
    205206add_filter( 'http_request_host_is_external', 'allowed_http_request_hosts', 10, 2 );
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