Created
January 12, 2016 22:20
-
-
Save scottnelle/90260a73420bd3176ff5 to your computer and use it in GitHub Desktop.
Redirect legacy urls to WordPress posts. Assumes that the legacy URL was stored to post meta as legacy_url during migration.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| function redirect_legacy_urls() { | |
| if ( ! is_404() ) { | |
| return; | |
| } | |
| $url = trim( parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ), '/' ); | |
| if ( empty( $url ) ) { | |
| return false; | |
| } | |
| // this is a slow query. consider caching as a transient. use a hashed version of the url as the key. | |
| $query = new WP_Query( array( | |
| 'posts_per_page' => 1, | |
| 'meta_query' => array( | |
| array( | |
| 'key' => 'legacy_url', | |
| 'value' => $url, | |
| 'compare' => 'LIKE', | |
| ), | |
| ), | |
| 'no_found_rows' => true, | |
| 'update_post_term_cache' => false, | |
| ) ); | |
| if ( $query->have_posts() ) { | |
| wp_safe_redirect( get_permalink( $query->posts[0]->ID ), 301 ); | |
| exit; | |
| } | |
| } | |
| add_action( 'template_redirect', 'redirect_legacy_urls', 100 ); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment