drupal hook_menu_alter() for adding tabs

Question

I want to add some tabs in the "node/%/edit" page from my module called "cssswitch". When I click "Rebuild Menus", the two new tabs are displayed, but they are displayed for ALL nodes when editing them, not just for the node "cssswitch". I want these new tabs to be displayed only when editing node of type "cssswitch". The other problem is when I clear all cache, the tabs completely dissapear from all edit pages. Below is the code I wrote. ``` function cssswitch_menu_alter(&$items) { $node = menu_get_object(); //print_r($node); //echo $node->type; //exit(); if ($node->type == 'cssswitch') { $items['node/%/edit/schedulenew'] = array( 'title' => 'Schedule1', 'access callback'=>'user_access', 'access arguments'=>array('view cssswitch'), 'page callback' => 'cssswitch_schedule', 'page arguments' => array(1), 'type' => MENU_LOCAL_TASK, 'weight'=>4, ); $items['node/%/edit/schedulenew2'] = array( 'title' => 'Schedule2', 'access callback'=>'user_access', 'access arguments'=>array('view cssswitc…

Accepted Answer

hook_menu_alter() is only called during the menu building process, so you can't do dynamic node type checks within that function.

However, to achieve what you want, you can do this with a custom access callback as follows:

```
       // Note, I replaced the '%' in your original code with '%node'. See hook_menu() for details on this.
       $items['node/%node/edit/schedulenew2'] = array(
            ...
            'access callback'=>'cssswitch_schedulenew_access',
            // This passes in the $node object as the argument.
            'access arguments'=>array(1),
            ...
        );  
```

Then, in your new custom access callback:

```
function cssswitch_schedulenew_access($node) {
  // Check that node is the proper type, and that the user has the proper permission.
  return $node->type == 'cssswitch' && user_access('view cssswitch');
}
```

For other node types, this function will return false, thus denying access, and thus removing the tab.

drupal hook_menu_alter() for adding tabs

Solution

Problem