Peter Wilson 8b3314ad25 Query: Move cache key generation to its own method.
Introduce `WP_Query::generate_cache_key()` for generating the cache key used by the main database query.

This removes the need for a filter to test that cache keys do not include the WPDB placeholder causing unreachable cache keys. The tests now call `WP_Query::generate_cache_key()` directly.

The filter `wp_query_cache_key` is removed as a hard deprecation. The filter was not included in a stable release.

Follow up to [54634].

Props spacedmonkey, jorbin, azaozz, hellofromtonya, mukesh27, peterwilsoncc, desrosj, audrasjb, adamsilverstein, flixos90, davidbaumwald, joedolson, sergeybiryukov.
Fixes #56802.



git-svn-id: https://develop.svn.wordpress.org/trunk@54685 602fd350-edb4-49c9-b593-d223f7449a82
2022-10-25 00:35:30 +00:00
..