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After [28613], also kill queries that explicityly pass empty arrays to category__in, tag__in, tag_slug__in, and author__in to WP_Query.

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Adds unit tests.
Fixes #28099.


git-svn-id: https://develop.svn.wordpress.org/trunk@28664 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Scott Taylor
2014-06-04 17:49:26 +00:00
parent e0e0685ebd
commit ee9f2e48bb
3 changed files with 45 additions and 0 deletions
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16
src/wp-includes/query.php
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@@ -1830,6 +1830,8 @@ class WP_Query {
'field' => 'term_id',
'include_children' => false
);
} elseif ( isset( $this->query['category__in'] ) ) {
$q['category__in'] = false;
}
if ( ! empty($q['category__not_in']) ) {
@@ -1887,6 +1889,8 @@ class WP_Query {
'taxonomy' => 'post_tag',
'terms' => $q['tag__in']
);
} elseif ( isset( $this->query['tag__in'] ) ) {
$q['tag__in'] = false;
}
if ( !empty($q['tag__not_in']) ) {
@@ -1914,6 +1918,8 @@ class WP_Query {
'terms' => $q['tag_slug__in'],
'field' => 'slug'
);
} elseif ( isset( $this->query['tag_slug__in'] ) ) {
$q['tag_slug__in'] = false;
}
if ( !empty($q['tag_slug__and']) ) {
@@ -2500,6 +2506,13 @@ class WP_Query {
$where .= $clauses['where'];
}
// If *__in is passed to WP_Query as an empty array, don't return results
foreach ( array( 'category', 'tag', 'tag_slug' ) as $in ) {
if ( isset( $q["{$in}__in"] ) && false === $q["{$in}__in"] ) {
$where = " AND 1=0 $where";
}
}
if ( $this->is_tax ) {
if ( empty($post_type) ) {
// Do a fully inclusive search for currently registered post types of queried taxonomies
@@ -2591,6 +2604,9 @@ class WP_Query {
} elseif ( ! empty( $q['author__in'] ) ) {
$author__in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__in'] ) ) );
$where .= " AND {$wpdb->posts}.post_author IN ($author__in) ";
} elseif ( isset( $this->query['author__in'] ) ) {
$author__in = 0;
$where .= ' AND 1=0 ';
}
// Author stuff for nice URLs