Changeset 57681 for trunk/src/wp-admin/includes/export.php

Timestamp:

02/21/2024 06:13:27 PM (10 months ago)

Author:

hellofromTonya

Message:

Export: Include featured image for posts or pages.

This bugfix resolves an issue in export_wp() with featured images.

When using Tools > Export and selecting either Posts or Pages (with or without a specific author), the resulting XML file now includes a XML item for each post|page's featured image attachment and its metadata.

Uses same chunking (for performance) and code patterns from existing code in the same file.

Adds a new test class for export_wp() with code coverage specific to this bugfix.

Follow-up to [34326], [14444], [6375], [6335].

Props billseymour, nateallen, petitphp, hellofromTonya, duck_, jane, rcain, jghazally, jghazally, smub, batmoo, axwax, creativeslice, dlocc, nacin, wonderboymusic, ganon, SergeyBiryukov, hlashbrooke, chriscct7, fischfood, hifidesign, ankit-k-gupta, 5um17, shailu25, huzaifaalmesbah, mukesh27.
Fixes #17379.

File:

• trunk/src/wp-admin/includes/export.php (modified) (1 diff)

trunk/src/wp-admin/includes/export.php

@@ -144 +144 @@
     // Grab a snapshot of post IDs, just in case it changes during the export.
     $post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" );
+
+    // Get IDs for the attachments of each post, unless all content is already being exported.
+    if ( ! in_array( $args['content'], array( 'all', 'attachment' ), true ) ) {
+        // Array to hold all additional IDs (attachments and thumbnails).
+        $additional_ids = array();
+
+        // Create a copy of the post IDs array to avoid modifying the original array.
+        $processing_ids = $post_ids;
+
+        while ( $next_posts = array_splice( $processing_ids, 0, 20 ) ) {
+            $posts_in     = array_map( 'absint', $next_posts );
+            $placeholders = array_fill( 0, count( $posts_in ), '%d' );
+
+            // Create a string for the placeholders.
+            $in_placeholder = implode( ',', $placeholders );
+
+            // Prepare the SQL statement for attachment ids.
+            $attachment_ids = $wpdb->get_col(
+                $wpdb->prepare(
+                    "
+                SELECT ID
+                FROM $wpdb->posts
+                WHERE post_parent IN ($in_placeholder) AND post_type = 'attachment'
+                    ",
+                    $posts_in
+                )
+            );
+
+            $thumbnails_ids = $wpdb->get_col(
+                $wpdb->prepare(
+                    "
+                SELECT meta_value
+                FROM $wpdb->postmeta
+                WHERE $wpdb->postmeta.post_id IN ($in_placeholder)
+                AND $wpdb->postmeta.meta_key = '_thumbnail_id'
+                    ",
+                    $posts_in
+                )
+            );
+
+            $additional_ids = array_merge( $additional_ids, $attachment_ids, $thumbnails_ids );
+        }
+
+        // Merge the additional IDs back with the original post IDs after processing all posts
+        $post_ids = array_unique( array_merge( $post_ids, $additional_ids ) );
+    }
 
     /*