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REST API: Fix behavior of sticky posts filter when no posts are sticky.

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Previously, when getting posts from the API with `sticky=true`, if there were no sticky posts set, the query would return all posts  as if the `sticky` argument was not set.  In this situation, the query should return an empty array instead.

A `sticky=true` query that should return an empty array (in the previous situation, or with `include` and no intersecting post IDs) was also broken in that it would query the post with ID 1.

Finally, this commit significantly improves test coverage for the `sticky` filter argument, including direct testing of the `WHERE` clauses generated by `WP_Query`.

Props ryelle.
Fixes #39947.


git-svn-id: https://develop.svn.wordpress.org/trunk@40122 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
James Nylen
2017-02-25 05:02:17 +00:00
parent c0ad5e4a50
commit e5d5f1058e
2 changed files with 98 additions and 15 deletions
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7
src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php
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@@ -220,7 +220,10 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
if ( isset( $registered['sticky'], $request['sticky'] ) ) {
$sticky_posts = get_option( 'sticky_posts', array() );
if ( $sticky_posts && $request['sticky'] ) {
if ( ! is_array( $sticky_posts ) ) {
$sticky_posts = array();
}
if ( $request['sticky'] ) {
/*
* As post__in will be used to only get sticky posts,
* we have to support the case where post__in was already
@@ -234,7 +237,7 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
* so we have to fake it a bit.
*/
if ( ! $args['post__in'] ) {
$args['post__in'] = array( -1 );
$args['post__in'] = array( 0 );
}
} elseif ( $sticky_posts ) {
/*