Avoid returning duplicate matches when using a meta query in WP_User_Query.

A meta_query containing an `OR` relation can result in the same record matching
multiple clauses, leading to duplicate results. The previous prevention against
duplicates [18178] #17582 became unreliable in 4.1 when `WP_Meta_Query`
introduced support for nested clauses. The current changeset adds a new method
`WP_Meta_Query::has_or_relation()` for checking whether an `OR` relation
appears anywhere in the query, and uses the new method in `WP_User_Query` to
enforce distinct results as necessary.

Props maxxsnake.
Fixes #32592.
Built from https://develop.svn.wordpress.org/trunk@32713


git-svn-id: http://core.svn.wordpress.org/trunk@32683 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges
2015-06-09 17:42:28 +00:00
parent 6657e42c7d
commit 5dfd6a02a7
3 changed files with 27 additions and 2 deletions

View File

@@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.3-alpha-32712';
$wp_version = '4.3-alpha-32713';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.