Redirect_404_Vehicles
Contents
Description Description
A class that detects when requests are made for vehicles that are no longer on the site and redirects the user to that vehicle's make archive.<br>So, a request for a sold or removed Subaru will redirect the user to the archive page containing all Subarus.
Source Source
File: includes/class-redirect-404-vehicles.php
class Redirect_404_Vehicles { /** * extract_make * * Finds the vehicle make from the request whether it was a search or a * request for a specific vehicle that no longer exists. * * @param mixed $wp_obj * @return string A vehicle manufacturer name */ function extract_make( $wp_obj ) { if ( ! $this->is_request_for_vehicle( $wp_obj ) ) { return ''; } // if this is a search, the make might be in its own query variable if ( isset( $wp_obj->query_vars['make'] ) ) { return $wp_obj->query_vars['make']; } // if this is a request for a single vehicle, parse the make out of the slug if ( isset( $wp_obj->query_vars[ INVP::POST_TYPE ] ) ) { $slug_pieces = explode( '-', $wp_obj->query_vars[ INVP::POST_TYPE ] ); if ( 2 <= sizeof( $slug_pieces ) // is the first piece a number of no more than 4 digits? && 4 >= strlen( $slug_pieces[0] ) && is_numeric( $slug_pieces[0] ) ) { return $slug_pieces[1]; } } return ''; } /** * hooks * * Adds hooks * * @return void */ function hooks() { add_action( 'wp', array( $this, 'maybe_redirect' ) ); } /** * is_request_for_vehicle * * @param mixed $wp_obj * @return bool */ function is_request_for_vehicle( $wp_obj ) { return isset( $wp_obj->query_vars ) && isset( $wp_obj->query_vars['post_type'] ) && INVP::POST_TYPE == $wp_obj->query_vars['post_type']; } /** * maybe_redirect * * Checks to see if the request is for a vehicle that no longer exists. * If it was, it decides where to redirect the user and performs that * redirect. * * @param mixed $wp_obj * @return void */ function maybe_redirect( $wp_obj ) { // is this a request for a vehicle? // is this a 404? if ( ! $this->is_request_for_vehicle( $wp_obj ) || ! is_404() ) { return; } // base link to the inventory page $url = get_post_type_archive_link( INVP::POST_TYPE ); // get the make out of the slug $make = $this->extract_make( $wp_obj ); if ( ! is_string( $make ) || '' == $make ) { // no make, redirect to vehicle archive wp_safe_redirect( $url, 302 ); exit; } // are there cars in this make? $term = get_term_by( 'slug', $make, 'make' ); if ( ! $term || 0 == $term->count ) { // no cars in this make, go to vehicle archive wp_safe_redirect( $url, 302 ); exit; } // redirect to this make's archive $url = get_term_link( $make, 'make' ); if ( is_wp_error( $url ) ) { // no link created for this make? go to vehicle archive wp_safe_redirect( $url, 302 ); exit; } wp_safe_redirect( $url, 302 ); exit; } }
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Methods Methods
- extract_make — extract_make
- hooks — hooks
- is_request_for_vehicle — is_request_for_vehicle
- maybe_redirect — maybe_redirect
Changelog Changelog
Version | Description |
---|---|
3.2.0 | Introduced. |