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Since a few times, this really great plugin was failing to move comments.
It was returning the error Uncaught ArgumentCountError: Too few arguments to function wpdb::prepare()
The fix is really simple. Go to your WordPress Dashboard, under the menu “Plugins”, select the “Plugin Editor”. Next, top-right, select “plugin to edit:” = “Move WordPress Comment” and click “Select”.
Go to line 63 (or search for “prepare”). This methods requires 2 parameters. So, in the where clauses of the SQL Update statements, replace the variables by %s and move the variables into a second parameters.
It should result into this:
// move to different post
if ( $postID != $oldpostID ) {
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->comments SET comment_post_ID=$postID WHERE comment_ID=%s;", "$commentID") );
// Change post count
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET comment_count=comment_count+1 WHERE ID=%s;", "$postID" ) );
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET comment_count=comment_count-1 WHERE ID=%s;", "$oldpostID" ) );
}
// move to different parent
if ( $parentID != $commentID ) {
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->comments SET comment_parent=$parentID WHERE comment_ID=%s;", "$commentID" ) );
}