Drupal - Conditionally hiding CCK fieldgroups

Conditional Fields is a great Drupal module for conditionally hiding CCK fields.

Unfortunately, it can't hide CCK fieldgroups. It's also not ideal if you're concerned about security— it simply hides fields; it doesn't deny access. A recent project of mine required that I conditionally deny access to field groups, so I decided to implement a programmatic solution.

In this case, I needed to deny access to specific fieldgroups in content type 'company' based on:

  • The role of the acting user
  • The value of the field_company_type CCK field

The downside to this approach is that you must save and return to the node edit page before seeing a change in fieldgroup visibility.

Here's my solution:
/*
* Implementation of hook_form_alter()
*
*
*/
function grasmash_form_alter(&$form, &$form_state, $form_id) {

/*
* remove specific fields from company node/edit form
* contigent upon value of field_company_type and user's role
*/

if ($form_id == 'company_node_form'){
global $user;

//if user is not admin
if (!in_array('site administrator', array_values($user->roles)) && $user->uid != 1){
$company_type = $form['#node']->field_company_type[0]['value'];
$hidden_groups = array();

//determine which fields should be hidden for which company types

//visible to only manufacturer
if ($company_type != 'manufacturer') {
$hidden_groups[] = 'group_manufacturing';
$hidden_groups[] = 'group_reactions';
$hidden_groups[] = 'group_equipment';
}

//visible to only manufacturer and distrubutors
if ($company_type != 'manufacturer' && $company_type != 'distributor_supplier'){
$hidden_groups[] = 'group_capabilities';
$hidden_groups[] = 'group_certifications';
$hidden_groups[] = 'group_products';
}

//visible to only manufacturers, distrubutors, and service providers
if ($company_type != 'manufacturer' && $company_type != 'distributor_supplier' && $company_type != 'industry_service_provider'){
//$hidden_groups[] = 'group_industries';
$hidden_groups[] = 'group_industries';
$hidden_groups[] = 'group_consultants';
}

//deny access to hidden fieldgroups
foreach ($hidden_groups as $group){
$form[$group]['#access'] = FALSE;
}
}
}
?>

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