The implementation of `meta_query` orderby introduced in [31312] put clause
identifiers into a 'name' parameter of the clause. For greater clarity, this
changeset updates the syntax to use the associative array key used when
defining `meta_query` parameters, instead of the 'name' parameter.
Props Funkatronic, DrewAPicture.
Fixes#31045.
git-svn-id: https://develop.svn.wordpress.org/trunk@31340 602fd350-edb4-49c9-b593-d223f7449a82
`WP_Meta_Query` clauses now support a 'name' parameter. When building a
`WP_Query` object, the value of 'orderby' can reference this 'name', so that
it's possible to order by any clause in a meta_query, not just the first one
(as when using 'orderby=meta_value'). This improvement also makes it possible
to order by multiple meta query clauses (or by any other eligible field plus
a meta query clause), using the array syntax for 'orderby' introduced in [29027].
Props Funkatronic, boonebgorges.
Fixes#31045.
git-svn-id: https://develop.svn.wordpress.org/trunk@31312 602fd350-edb4-49c9-b593-d223f7449a82
`meta_query` tests have been moved to `tests/phpunit/tests/query/metaQuery.php` and `tax_query` tests to `tests/phpunit/tests/query/taxQuery.php`. This is an improvement because (a) it better corresponds to the way that other `WP_Query` parameter tests are organized, (b) splitting meta and tax tests into separate classes simplifies the required `@group` annotations, and (c) the tests have nothing to do with posts per se, and so do not belong in the `post` subdirectory.
The tests previously found at `tests/phpunit/tests/query/taxQuery.php` have been moved to `isTerm.php` in the same directory. These tests are related to the `is_*` functions that have to do with taxonomy terms, like `is_category()`.
See #26999.
git-svn-id: https://develop.svn.wordpress.org/trunk@31286 602fd350-edb4-49c9-b593-d223f7449a82
