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Don't run 'get_terms' filter when querying for terms within get_term_by().

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Historically, it has been possible to call `get_term_by()` within
a 'get_terms' filter callback. Since `get_term_by()` was refactored
to use `get_terms()` internally [38677], callbacks of this nature
have resulted in infinite loops.

As a workaround, we introduce a 'suppress_filter' option to `get_terms()`,
and use it when calling the function from within `get_term_by()`.

Props ocean90.
See #21760.
Built from https://develop.svn.wordpress.org/trunk@40275


git-svn-id: http://core.svn.wordpress.org/trunk@40192 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges 2017-03-11 02:27:44 +00:00
parent afdef17903
commit bdd898045d
2 changed files with 18 additions and 3 deletions
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19
wp-includes/taxonomy.php
View File

@ -849,6 +849,7 @@ function get_term_by( $field, $value, $taxonomy = '', $output = OBJECT, $filter
'taxonomy' => $taxonomy,
'update_term_meta_cache' => false,
'orderby' => 'none',
'suppress_filter' => true,
);
switch ( $field ) {
@ -1012,6 +1013,7 @@ function get_term_to_edit( $id, $taxonomy ) {
* a list of WP_Term objects.
* @since 4.5.0 Changed the function signature so that the `$args` array can be provided as the first parameter.
* Introduced 'meta_key' and 'meta_value' parameters. Introduced the ability to order results by metadata.
* @since 4.8.0 Introduced 'suppress_filter' parameter.
*
* @internal The `$deprecated` parameter is parsed for backward compatibility only.
*
@ -1083,6 +1085,7 @@ function get_term_to_edit( $id, $taxonomy ) {
* @type string $meta_type Type of object metadata is for (e.g., comment, post, or user).
* Default empty.
* @type string $meta_compare Comparison operator to test the 'meta_value'. Default empty.
* @type bool $suppress_filter Whether to suppress the {@see 'get_terms'} filter. Default false.
* }
* @param array $deprecated Argument array, when using the legacy function parameter format. If present, this
* parameter will be interpreted as `$args`, and the first function parameter will
@ -1095,6 +1098,10 @@ function get_terms( $args = array(), $deprecated = '' ) {
$term_query = new WP_Term_Query();
$defaults = array(
'suppress_filter' => false,
);
/*
* Legacy argument format ($taxonomy, $args) takes precedence.
*
@ -1108,10 +1115,10 @@ function get_terms( $args = array(), $deprecated = '' ) {
if ( $do_legacy_args ) {
$taxonomies = (array) $args;
$args = wp_parse_args( $deprecated );
$args = wp_parse_args( $deprecated, $defaults );
$args['taxonomy'] = $taxonomies;
} else {
$args = wp_parse_args( $args );
$args = wp_parse_args( $args, $defaults );
if ( isset( $args['taxonomy'] ) && null !== $args['taxonomy'] ) {
$args['taxonomy'] = (array) $args['taxonomy'];
}
@ -1125,6 +1132,10 @@ function get_terms( $args = array(), $deprecated = '' ) {
}
}
// Don't pass suppress_filter to WP_Term_Query.
$suppress_filter = $args['suppress_filter'];
unset( $args['suppress_filter'] );
$terms = $term_query->query( $args );
// Count queries are not filtered, for legacy reasons.
@ -1132,6 +1143,10 @@ function get_terms( $args = array(), $deprecated = '' ) {
return $terms;
}
if ( $suppress_filter ) {
return $terms;
}
/**
* Filters the found terms.
*

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.8-alpha-40271';
$wp_version = '4.8-alpha-40275';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.