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Meta: Simplify the delete all meta query in `delete_metadata()`. 

Merge of [42913] to the 4.5 branch.

Built from https://develop.svn.wordpress.org/branches/4.5@42916


git-svn-id: http://core.svn.wordpress.org/branches/4.5@42746 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Dominik Schilling 2018-04-03 15:43:03 +00:00
parent 764b72595b
commit 52e15eb4d6
1 changed files with 3 additions and 4 deletions
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7
wp-includes/meta.php
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@ -364,12 +364,11 @@ function delete_metadata($meta_type, $object_id, $meta_key, $meta_value = '', $d
return false;
if ( $delete_all ) {
$value_clause = '';
if ( '' !== $meta_value && null !== $meta_value && false !== $meta_value ) {
$value_clause = $wpdb->prepare( " AND meta_value = %s", $meta_value );
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s AND meta_value = %s", $meta_key, $meta_value ) );
} else {
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s", $meta_key ) );
}
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s $value_clause", $meta_key ) );
}
/**