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When using `meta_query` in a `WP_Query`, passing `NOT EXISTS` or `''` to `compare` should not require `value` to be set. The resulting SQL should then produce the appropriate `OR` clause for existence of non-existence after passing the query to the `$key_only_queries` stack internally. 

Adds unit tests. 

Props chrisguitarguy, for the original patch.
Fixes #23268.


Built from https://develop.svn.wordpress.org/trunk@27689


git-svn-id: http://core.svn.wordpress.org/trunk@27528 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor 2014-03-24 19:57:15 +00:00
parent b933f954e3
commit 0115ba2f30
1 changed files with 1 additions and 1 deletions
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2
wp-includes/meta.php
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@ -753,7 +753,7 @@ class WP_Meta_Query {
// Split out the meta_key only queries (we can only do this for OR) // Split out the meta_key only queries (we can only do this for OR)
if ( 'OR' == $this->relation ) { if ( 'OR' == $this->relation ) {
foreach ( $this->queries as $k => $q ) { foreach ( $this->queries as $k => $q ) {
if ( ! array_key_exists( 'value', $q ) && ! empty( $q['key'] ) ) if ( ( empty( $q['compare'] ) || 'NOT EXISTS' != $q['compare'] ) && ! array_key_exists( 'value', $q ) && ! empty( $q['key'] ) )
$key_only_queries[$k] = $q; $key_only_queries[$k] = $q;
else else
$queries[$k] = $q; $queries[$k] = $q;