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Users: Add a `users_pre_query` filter to short circuit WP_User_Query results. 

Add a new filter `users_pre_query` - filters the users array before the query takes place. Return a non-null value to bypass WordPress's default user queries. Similar to the `posts_pre_query` filter for WP_Query added in #36687. This filter lets you short circuit the WP_User_Query MySQL query to return your own results.

Developers should note that filtering functions that require pagination information are encouraged to set the `total_users` property of the WP_User_Query object, passed to the filter by reference. If WP_User_Query does not perform a database query, it will not have enough information to generate these values itself.

Props tlovett1, birgire, boonebgorges, spacedmonkey.
Fixes #44169.

Built from https://develop.svn.wordpress.org/trunk@44373


git-svn-id: http://core.svn.wordpress.org/trunk@44203 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Adam Silverstein 2018-12-29 16:06:50 +00:00
parent 7a6764679f
commit 9b0c0c7201
2 changed files with 39 additions and 21 deletions
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58
wp-includes/class-wp-user-query.php
View File

@ -592,29 +592,47 @@ class WP_User_Query {
$qv =& $this->query_vars;
$this->request = "SELECT $this->query_fields $this->query_from $this->query_where $this->query_orderby $this->query_limit";
/**
* Filters the users array before the query takes place.
*
* Return a non-null value to bypass WordPress's default user queries.
* Filtering functions that require pagination information are encouraged to set
* the `total_users` property of the WP_User_Query object, passed to the filter
* by reference. If WP_User_Query does not perform a database query, it will not
* have enough information to generate these values itself.
*
* @since 5.0.3
*
* @param array|null $results Return an array of user data to short-circuit WP's user query or null to allow WP to run its normal queries.
* @param WP_User_Query $this The WP_User_Query instance (passed by reference).
*/
$this->results = apply_filters_ref_array( 'users_pre_query', array( null, &$this ) );
if ( is_array( $qv['fields'] ) || 'all' == $qv['fields'] ) {
$this->results = $wpdb->get_results( $this->request );
} else {
$this->results = $wpdb->get_col( $this->request );
}
if ( null === $this->results ) {
$this->request = "SELECT $this->query_fields $this->query_from $this->query_where $this->query_orderby $this->query_limit";
if ( isset( $qv['count_total'] ) && $qv['count_total'] ) {
/**
* Filters SELECT FOUND_ROWS() query for the current WP_User_Query instance.
*
* @since 3.2.0
* @since 5.1.0 Added the `$this` parameter.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query.
* @param WP_User_Query $this The current WP_User_Query instance.
*/
$found_users_query = apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()', $this );
if ( is_array( $qv['fields'] ) || 'all' == $qv['fields'] ) {
$this->results = $wpdb->get_results( $this->request );
} else {
$this->results = $wpdb->get_col( $this->request );
}
$this->total_users = (int) $wpdb->get_var( $found_users_query );
if ( isset( $qv['count_total'] ) && $qv['count_total'] ) {
/**
* Filters SELECT FOUND_ROWS() query for the current WP_User_Query instance.
*
* @since 3.2.0
* @since 5.0.3 Added the `$this` parameter.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query.
* @param WP_User_Query $this The current WP_User_Query instance.
*/
$found_users_query = apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()', $this );
$this->total_users = (int) $wpdb->get_var( $found_users_query );
}
}
if ( ! $this->results ) {

2
wp-includes/version.php
View File

@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.1-alpha-44372';
$wp_version = '5.1-alpha-44373';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.