How to add multiple routes

Take a look at https://gist.github.com/jbrinley/f2a263db096eee3f0032. Your add_action() statement was incorrectly formatted.

Regarding “Fatal error: Cannot redeclare WP_Router_Sample::generate_routes()”: that’s not coming from this code. It sounds like you made some modifications to the plugin itself, or you’re redeclaring that class elsewhere. Try removing the plugin and downloading a fresh copy of it to remove any modifications you made.

Thanks, your instructions helped. I actually got it to run this way:
https://gist.github.com/luzpaz/f9475abcc571b663d407

The odd thing is that i needed to make this multiple call:

add_action( 'wp_router_generate_routes', 'BT_practitioner_find_routes', 20 );
add_action( 'wp_router_generate_routes', 'BT_practitioner_results_routes', 20 );
add_action( 'wp_router_generate_routes', 'BT_practitioner_email_routes', 20 );

This is a little while ago. But for everyone who is looking for something similar. I came up with a litter more convenient solution.

I created a codeigniter like solution where the user can register routes in a simple way and my functions in combination with WP Routes will fix the rest.

First I create a few vars:

// Init all the routes

$mv_route['beheer/user/%'] 		= 'MV_Seller/user/var1'; // Controller/Function/Var

$mv_route['beheer'] 				= 'MV_Seller/show';
$mv_route['beheer/profiel'] 		= 'MV_Beheer/profile';
$mv_route['calculator'] 			= 'MV_Calculator/show';

After that I init the routes generation

add_action('wp_router_generate_routes', 'mv_generate_routes');

Than I create my function

function mv_generate_routes(WP_Router $router) {
	global $mv_route;

	foreach ($mv_route as $route_data => $uri) {
		$route = mv_route_data(
			(string) $route_data,
			(string) $uri
		);

		if (!$route) {
			continue;
		}

		$router->add_route($route['id'], array(
			'path' => '^'. $route['route'] .'$',
			'query_vars' => $route['vars'],
			'page_callback' => array(
				$route['class'],
				$route['function']
			),
			'page_arguments' => $route['arguments'],
			'access_callback' => TRUE,
			'title' => 'WP Router Sample Page',
			'template' => array(
				dirname(__FILE__) . DIRECTORY_SEPARATOR .'no-sidebar.php',
				locate_template('no-sidebar.php'),
				'no-sidebar.php'
			)
		));
	}
}

function mv_route_data($route, $uri) {

	// Generate the Router id
	$id = str_replace('/', '-', $route);
	$id = str_replace('%', 'var', $id);

	// Generate the router route
	$route = str_replace('%', '(.*?)', $route);

	// Get the class
	$class = explode('/', $uri)[0];

	// Get the function
	$function = explode('/', $uri)[1];

	// Get vars
	$parts = explode('/', $uri);
	$parts  = ($parts)? array_filter(array_slice($parts, 2)) : array();

	foreach ($parts as $key => $value) {
		$vars[$value] = $key+1;
	}

	// Get keys
	$arguments  = ($vars)? array_keys($vars) : array();

	return array(
		'id' 		=> $id,
		'route' => $route,
		'class' => $class,
		'function' => $function,
		'vars' 	=> $vars,
		'arguments' => $arguments
	);
}

All you need to do is include the controller and add the functions

So I include my controller:

require_once('MV_Seller')

This is the example of my Controller:

<?php

class MV_Seller {
	public static function show() {
		echo "My story";
	}

	public static function user($var) {
		echo "Yet another story with vars ". $var;
	}
}

Hope this helps. If you need more explanation. Please reply.