Changeset 52042 for trunk/src/wp-includes/blocks/calendar.php

Timestamp:

11/08/2021 02:26:27 PM (4 years ago)

Author:

youknowriad

Message:

Block Editor: Update the WordPress Packages based on Gutenberg 11.9 RC1.

This brings the JS packages up to date and is the first step that will allow us
to include the other block editor updates for WordPress 5.9:
FSE infrastrucutre, site editor and global styles.

Props noisysocks.
See #54337.

File:

• trunk/src/wp-includes/blocks/calendar.php (modified) (2 diffs)

trunk/src/wp-includes/blocks/calendar.php

@@ -15 +15 @@
 function render_block_core_calendar( $attributes ) {
     global $monthnum, $year;
+
+    // Calendar shouldn't be rendered
+    // when there are no published posts on the site.
+    if ( ! block_core_calendar_has_published_posts() ) {
+        if ( is_user_logged_in() ) {
+            return '<div>' . __( 'The calendar block is hidden because there are no published posts.', 'gutenberg' ) . '</div>';
+        }
+        return '';
+    }
 
     $previous_monthnum = $monthnum;
@@ -60 +69 @@
 
 add_action( 'init', 'register_block_core_calendar' );
+
+/**
+ * Returns whether or not there are any published posts.
+ *
+ * Used to hide the calendar block when there are no published posts.
+ * This compensates for a known Core bug: https://core.trac.wordpress.org/ticket/12016
+ *
+ * @return bool Has any published posts or not.
+ */
+function block_core_calendar_has_published_posts() {
+    // Multisite already has an option that stores the count of the published posts.
+    // Let's use that for multisites.
+    if ( is_multisite() ) {
+        return 0 < (int) get_option( 'post_count' );
+    }
+
+    // On single sites we try our own cached option first.
+    $has_published_posts = get_option( 'gutenberg_calendar_block_has_published_posts', null );
+    if ( null !== $has_published_posts ) {
+        return (bool) $has_published_posts;
+    }
+
+    // No cache hit, let's update the cache and return the cached value.
+    return block_core_calendar_update_has_published_posts();
+}
+
+/**
+ * Queries the database for any published post and saves
+ * a flag whether any published post exists or not.
+ *
+ * @return bool Has any published posts or not.
+ */
+function block_core_calendar_update_has_published_posts() {
+    global $wpdb;
+    $has_published_posts = (bool) $wpdb->get_var( "SELECT 1 as test FROM {$wpdb->posts} WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1" );
+    update_option( 'gutenberg_calendar_block_has_published_posts', $has_published_posts );
+    return $has_published_posts;
+}
+
+// We only want to register these functions and actions when
+// we are on single sites. On multi sites we use `post_count` option.
+if ( ! is_multisite() ) {
+    /**
+     * Handler for updating the has published posts flag when a post is deleted.
+     *
+     * @param int $post_id Deleted post ID.
+     */
+    function block_core_calendar_update_has_published_post_on_delete( $post_id ) {
+        $post = get_post( $post_id );
+
+        if ( ! $post || 'publish' !== $post->post_status || 'post' !== $post->post_type ) {
+            return;
+        }
+
+        block_core_calendar_update_has_published_posts();
+    }
+
+    /**
+     * Handler for updating the has published posts flag when a post status changes.
+     *
+     * @param string  $new_status The status the post is changing to.
+     * @param string  $old_status The status the post is changing from.
+     * @param WP_Post $post       Post object.
+     */
+    function block_core_calendar_update_has_published_post_on_transition_post_status( $new_status, $old_status, $post ) {
+        if ( $new_status === $old_status ) {
+            return;
+        }
+
+        if ( 'post' !== get_post_type( $post ) ) {
+            return;
+        }
+
+        if ( 'publish' !== $new_status && 'publish' !== $old_status ) {
+            return;
+        }
+
+        block_core_calendar_update_has_published_posts();
+    }
+
+    add_action( 'delete_post', 'block_core_calendar_update_has_published_post_on_delete' );
+    add_action( 'transition_post_status', 'block_core_calendar_update_has_published_post_on_transition_post_status', 10, 3 );
+}