81ecd4da98
The new 'object_ids' parameter for `WP_Term_Query` allows queries for terms that "belong to" a given object. This change makes it possible to use `WP_Term_Query` inside of `wp_get_object_terms()`, rather than assembling a SQL query. The refactor has a couple of benefits: * Less redundancy. * Better consistency in accepted arguments between the term query functions. See #31105. * Less redundancy. * Object term queries are now cached. The `get_object_term_cache()` cache remains, and will be a somewhat less fragile secondary cache in front of the query cache (which is subject to frequent invalidation). * Less redundancy. A small breaking change: Previously, if a non-hierarchical taxonomy had terms that had a non-zero 'parent' (perhaps because of a direct SQL query), `wp_get_object_terms()` would respect the 'parent' argument. This is in contrast to `WP_Term_Query` and `get_terms()`, which have always rejected 'parent' queries for non-hierarchical taxonomies. For consistency, the behavior of `get_terms()` is being applied across the board: passing 'parent' for a non-hierarchical taxonomy will result in an empty result set (since the cached taxonomy hierarchy will be empty). Props flixos90, boonebgorges. See #37198. git-svn-id: https://develop.svn.wordpress.org/trunk@38667 602fd350-edb4-49c9-b593-d223f7449a82 |
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