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REST API: Use wp_get_object_terms() when fetching terms for a post object.

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The WP-API plugin originally used a custom method for fetching object
terms in a way that supported the object cache and also accepted all
parameters for `get_terms()`. In [38667], the internals of
`wp_get_object_terms()` were modified to use `WP_Term_Query`, thus
delivering in a native fashion the features that the API had
previously achieved bespokely.

Fixes #38504.
Built from https://develop.svn.wordpress.org/trunk@38974


git-svn-id: http://core.svn.wordpress.org/trunk@38917 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges 2016-10-27 01:42:32 +00:00
parent 582c8a12d2
commit 493f76a3d2
2 changed files with 15 additions and 83 deletions
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96
wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php
View File

@ -189,20 +189,23 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
$prepared_args = apply_filters( "rest_{$this->taxonomy}_query", $prepared_args, $request );
if ( ! empty( $prepared_args['post'] ) ) {
$query_result = $this->get_terms_for_post( $prepared_args );
$total_terms = $this->total_terms;
$query_result = wp_get_object_terms( $prepared_args['post'], $this->taxonomy, $prepared_args );
// Used when calling wp_count_terms() below.
$prepared_args['object_ids'] = $prepared_args['post'];
} else {
$query_result = get_terms( $this->taxonomy, $prepared_args );
$count_args = $prepared_args;
unset( $count_args['number'], $count_args['offset'] );
$total_terms = wp_count_terms( $this->taxonomy, $count_args );
// wp_count_terms can return a falsy value when the term has no children
if ( ! $total_terms ) {
$total_terms = 0;
}
}
$count_args = $prepared_args;
unset( $count_args['number'], $count_args['offset'] );
$total_terms = wp_count_terms( $this->taxonomy, $count_args );
// wp_count_terms can return a falsy value when the term has no children
if ( ! $total_terms ) {
$total_terms = 0;
}
$response = array();
foreach ( $query_result as $term ) {
$data = $this->prepare_item_for_response( $term, $request );
@ -237,77 +240,6 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
return $response;
}
/**
* Gets the terms attached to a post.
*
* This is an alternative to get_terms() that uses get_the_terms()
* instead, which hits the object cache. There are a few things not
* supported, notably `include`, `exclude`. In `self::get_items()` these
* are instead treated as a full query.
*
* @param array $prepared_args Arguments for get_terms().
* @return array List of term objects. (Total count in `$this->total_terms`)
*/
protected function get_terms_for_post( $prepared_args ) {
$query_result = get_the_terms( $prepared_args['post'], $this->taxonomy );
if ( empty( $query_result ) ) {
$this->total_terms = 0;
return array();
}
/*
* get_items() verifies that we don't have `include` set, and default
* ordering is by `name`.
*/
if ( ! in_array( $prepared_args['orderby'], array( 'name', 'none', 'include' ), true ) ) {
switch ( $prepared_args['orderby'] ) {
case 'id':
$this->sort_column = 'term_id';
break;
case 'slug':
case 'term_group':
case 'description':
case 'count':
$this->sort_column = $prepared_args['orderby'];
break;
}
usort( $query_result, array( $this, 'compare_terms' ) );
}
if ( strtolower( $prepared_args['order'] ) !== 'asc' ) {
$query_result = array_reverse( $query_result );
}
// Pagination.
$this->total_terms = count( $query_result );
$query_result = array_slice( $query_result, $prepared_args['offset'], $prepared_args['number'] );
return $query_result;
}
/**
* Comparison function for sorting terms by a column.
*
* Uses `$this->sort_column` to determine field to sort by.
*
* @access protected
*
* @param stdClass $left Term object.
* @param stdClass $right Term object.
* @return int <0 if left is higher "priority" than right, 0 if equal, >0 if right is higher "priority" than left.
*/
protected function compare_terms( $left, $right ) {
$col = $this->sort_column;
$left_val = $left->$col;
$right_val = $right->$col;
if ( is_int( $left_val ) && is_int( $right_val ) ) {
return $left_val - $right_val;
}
return strcmp( $left_val, $right_val );
}
/**
* Checks if a request has access to read the specified term.
*

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.7-alpha-38973';
$wp_version = '4.7-alpha-38974';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.