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Ignore:
Timestamp:
05/16/2017 05:36:25 AM (7 years ago)
Author:
westonruter
Message:

Customize: Keep alive auto-drafts created for page/post stubs when parent changeset is updated, and delete when changeset is garbage-collected.

Props utkarshpatel, westonruter.
See #31089.
Fixes #39715.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/src/wp-includes/theme.php

    r40300 r40676  
    30603060    return ( $wp_customize instanceof WP_Customize_Manager ) && $wp_customize->is_preview();
    30613061}
     3062
     3063/**
     3064 * Make sure that auto-draft posts get their post_date bumped to prevent premature garbage-collection.
     3065 *
     3066 * When a changeset is updated but remains an auto-draft, ensure the post_date
     3067 * for the auto-draft posts remains the same so that it will be
     3068 * garbage-collected at the same time by `wp_delete_auto_drafts()`. Otherwise,
     3069 * if the changeset is updated to be a draft then update the posts
     3070 * to have a far-future post_date so that they will never be garbage collected
     3071 * unless the changeset post itself is deleted.
     3072 *
     3073 * @since 4.8.0
     3074 * @access private
     3075 * @see wp_delete_auto_drafts()
     3076 *
     3077 * @param string   $new_status Transition to this post status.
     3078 * @param string   $old_status Previous post status.
     3079 * @param \WP_Post $post       Post data.
     3080 * @global wpdb $wpdb
     3081 */
     3082function _wp_keep_alive_customize_changeset_dependent_auto_drafts( $new_status, $old_status, $post ) {
     3083    global $wpdb;
     3084    unset( $old_status );
     3085
     3086    // Short-circuit if not a changeset or if the changeset was published.
     3087    if ( 'customize_changeset' !== $post->post_type || 'publish' === $new_status ) {
     3088        return;
     3089    }
     3090
     3091    if ( 'auto-draft' === $new_status ) {
     3092        /*
     3093         * Keep the post date for the post matching the changeset
     3094         * so that it will not be garbage-collected before the changeset.
     3095         */
     3096        $new_post_date = $post->post_date;
     3097    } else {
     3098        /*
     3099         * Since the changeset no longer has an auto-draft (and it is not published)
     3100         * it is now a persistent changeset, a long-lived draft, and so any
     3101         * associated auto-draft posts should have their dates
     3102         * pushed out very far into the future to prevent them from ever
     3103         * being garbage-collected.
     3104         */
     3105        $new_post_date = gmdate( 'Y-m-d H:i:d', strtotime( '+100 years' ) );
     3106    }
     3107
     3108    $data = json_decode( $post->post_content, true );
     3109    if ( empty( $data['nav_menus_created_posts']['value'] ) ) {
     3110        return;
     3111    }
     3112    foreach ( $data['nav_menus_created_posts']['value'] as $post_id ) {
     3113        if ( empty( $post_id ) || 'auto-draft' !== get_post_status( $post_id ) ) {
     3114            continue;
     3115        }
     3116        $wpdb->update(
     3117            $wpdb->posts,
     3118            array( 'post_date' => $new_post_date ), // Note wp_delete_auto_drafts() only looks at this this date.
     3119            array( 'ID' => $post_id )
     3120        );
     3121        clean_post_cache( $post_id );
     3122    }
     3123}
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