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Ticket #10905: 10905.diff

File 10905.diff, 571 bytes (added by scribu, 8 years ago)

add duplicate check for add_metadata()

  • wp-includes/meta.php

     
    3030
    3131        $meta_value = maybe_serialize( stripslashes_deep($meta_value) );
    3232
     33        // prevent duplicates
     34        if ( $wpdb->get_var( $wpdb->prepare(
     35                "SELECT COUNT(*) FROM $table WHERE meta_key = %s AND meta_value = %s AND $column = %d",
     36                $meta_key, $meta_value, $object_id ) ) )
     37                return false;
     38
    3339        $wpdb->insert( $table, array(
    3440                $column => $object_id,
    3541                'meta_key' => $meta_key,