WP Rewrite example

class-rewrites.php

<?php

class jpry_custom_rewrites {

    /**
     * Additional query vars that WordPress should recognize
     *
     * @var array  
     */
    var $query_vars = array( 'date_hash', 'partner_hash', 'partner_id' );

    /**
     * Rewrite rules that will be added to WordPress
     *
     * @var array 
     */
    var $rewrites   = array(
        array(
            'rule'     => 'partner_check_in/([a-zA-Z0-9]{32})/([^/]+)/([a-zA-Z0-9]{32})/?$',
            'rewrite'  => 'index.php?name=partner_check_in&date_hash=$matches[1]&partner_id=$matches[2]&partner_hash=$matches[3]',
            'position' => 'top',
        ),
        array(
            'rule'     => 'partner_single_check_in/([^/]+)/([a-zA-Z0-9]{32})/?$',
            'rewrite'  => 'index.php?name=partner_single_check_in&partner_id=$matches[1]&partner_hash=$matches[2]',
            'position' => 'top',
        ),
    );

    /**
     * Constructor for the class. Sets up certain class variables, and adds actions and filters
     */
    public function __construct() {
        add_action( 'init',       array( $this, 'custom_rewrite_rules' ) );
        add_filter( 'query_vars', array( $this, 'filter_query_vars' ) );
    }

    /**
     * Adds our custom rewrites to the rewrite rules.
     * 
     * @since 0.5 
     */
    public function custom_rewrite_rules() {
        foreach ( $this->rewrites as $rewrite ) {
            add_rewrite_rule( $rewrite['rule'], $rewrite['rewrite'], $rewrite['position'] );
        }
    }

    /**
     * Adds additional variables to the query_vars array.
     * 
     * @param array $query_vars Initial query_vars array
     * @return array Modified string of query vars 
     */
    public function filter_query_vars( $query_vars ) {
        $new_query_vars = array_merge( $query_vars, $this->query_vars );
        return $new_query_vars;
    }

} // End of "jpry_custom_rewrites" class

// Example of initializing the class:
$_jpry_custom_rewrites = new jpry_custom_rewrites();

?>