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<?php |
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/** |
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* Helpers to empower authors and users |
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* |
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* @package Powerkit |
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* @subpackage Modules/Helper |
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*/ |
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|
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/** |
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* Check enabled CoAuthors. |
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*/ |
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function powerkit_coauthors_enabled() { |
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return class_exists( 'CoAuthors_Plus' ); |
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} |
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|
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/** |
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* Retrieve list of guests. |
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*/ |
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function powerkit_get_guests() { |
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|
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$list = wp_cache_get( 'powerkit_get_guests' ); |
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|
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if ( ! $list ) { |
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|
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$list = array(); |
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|
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$query = new WP_Query(); |
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|
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$guests = $query->query( array( |
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'post_type' => 'guest-author', |
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'post_status' => 'publish', |
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'posts_per_page' => -1, |
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) ); |
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|
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foreach ( $guests as $guest ) { |
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array_push( $list, $guest ); |
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} |
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|
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wp_cache_set( 'powerkit_get_guests', $list, 'powerkit', 1 ); |
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} |
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|
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return $list; |
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} |
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|
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/** |
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* Determines whether a user is a guest. |
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* |
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* @param int $id The id of guest. |
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*/ |
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function powerkit_is_guest( $id ) { |
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if ( ! powerkit_coauthors_enabled() ) { |
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return false; |
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} |
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|
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if ( ! is_numeric( $id ) ) { |
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return false; |
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} |
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|
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$guests = powerkit_get_guests(); |
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|
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foreach ( $guests as $guest ) { |
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if ( (int) $id === (int) $guest->ID ) { |
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return true; |
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} |
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} |
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} |
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|
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/** |
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* Retrieve guest info by a given field. |
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* |
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* @param string $field The field of guest. |
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* @param int $id The id of guest. |
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*/ |
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function powerkit_get_guest_meta( $field, $id ) { |
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$field = str_replace( array( 'user_url', 'url' ), 'website', $field ); |
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|
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return get_post_meta( $id, 'cap-' . $field, true ); |
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} |
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|
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/** |
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* Retrieve list of users and guests. |
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*/ |
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function powerkit_get_users() { |
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|
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$users = wp_cache_get( 'powerkit_get_users' ); |
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|
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if ( ! $users ) { |
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$args = array( |
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'orderby' => 'display_name', |
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'capability' => array( 'edit_posts' ), |
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); |
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|
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// Capability queries were only introduced in WP 5.9. |
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if ( version_compare( $GLOBALS['wp_version'], '5.9', '<' ) ) { |
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$args['who'] = 'authors'; |
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unset( $args['capability'] ); |
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} |
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|
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$users = get_users( apply_filters( 'powerkit_get_users_args', $args ) ); |
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|
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if ( powerkit_coauthors_enabled() ) { |
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|
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$guests = powerkit_get_guests(); |
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|
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foreach ( $guests as $guest ) { |
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$guest->first_name = powerkit_get_guest_meta( 'first_name', $guest->ID ); |
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$guest->last_name = powerkit_get_guest_meta( 'last_name', $guest->ID ); |
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$guest->user_email = powerkit_get_guest_meta( 'user_email', $guest->ID ); |
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$guest->website = powerkit_get_guest_meta( 'website', $guest->ID ); |
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|
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$user = (object) array( |
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'ID' => $guest->ID, |
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'display_name' => $guest->post_title, |
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'user_registered' => $guest->post_date, |
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'user_login' => $guest->first_name, |
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'user_nicename' => $guest->last_name, |
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'user_email' => $guest->user_email, |
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'user_url' => $guest->website, |
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'user_pass' => '', |
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'user_activation_key' => '', |
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'user_status' => 0, |
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); |
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|
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array_push( $users, $user ); |
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} |
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} |
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|
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wp_cache_set( 'powerkit_get_users', $users, 'powerkit', 1 ); |
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} |
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|
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usort( $users, function( $a, $b ) { |
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if ( function_exists( 'mb_strtolower' ) ) { |
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return strcmp( mb_strtolower( $a->display_name ), mb_strtolower( $b->display_name ) ); |
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} else { |
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return strcmp( strtolower( $a->display_name ), strtolower( $b->display_name ) ); |
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} |
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} ); |
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|
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return $users; |
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} |
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|
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/** |
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* Check the user's belonging to the post. |
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* |
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* @param int $author_id The ID of author. |
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* @param int $post_id The ID of post. |
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*/ |
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function powerkit_check_post_author( $author_id, $post_id ) { |
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|
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if ( (string) get_post_field( 'post_author', $post_id ) === (string) $author_id ) { |
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return true; |
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} |
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|
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if ( powerkit_coauthors_enabled() ) { |
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$coauthors = (array) get_coauthors(); |
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|
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foreach ( $coauthors as $coauthor ) { |
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if ( isset( $coauthor->ID ) && (string) $coauthor->ID === (string) $author_id ) { |
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return true; |
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} |
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} |
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} |
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} |
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|
