hook_menu() wildcard at start

Question

Working on a hook_menu() function that i got working fine with the following code:

function mymodule_menu(){
    $items = array();
    $items['assessment/%'] = array(
        'page callback' => 'mymodule_assessment_page',
        'page arguments' => 'array(1),
        'access arguments' => array('access content'),
        'file' => 'pages/mymodule.assessment.inc',
        'type' => MENU_CALLBACK,
    );
}

However when i try the following (after clearing cache etc) i get a page not found error.

function mymodule_menu(){
    $items = array();
    $items['%/assessment'] = array(
        'page callback' => 'mymodule_assessment_page',
        'page arguments' => 'array(0),
        'access arguments' => array('access content'),
        'file' => 'pages/mymodule.assessment.inc',
        'type' => MENU_CALLBACK,
    );
}

Ive searched google and i see no mention of not being able to put a path wildcard at the front of the url.

Can anyone notice anything im doing wrong here? Or is it a case of drupal not supporting paths beginning with wildcards.

Anyhelp will be massively appreciated, thanks!

Answer 1

The problem is that you use the wildcard as the first component. If you look at the documentation for hook_menu() you will see the following:

Wildcards in Paths Simple Wildcards

Wildcards within paths also work with integer substitution. For example, your module could register path 'my-module/%/edit':

$items['my-module/%/edit'] = array(
   'page callback' => 'mymodule_abc_edit',
   'page arguments' => array(1),   
  );

When path 'my-module/foo/edit' is requested, integer 1 will be replaced with 'foo' and passed to the callback function. Note that wildcards may not be used as the first component.