New Rule: rules_action_set_user_domain

Here is my first try but I must be doing someting wrong. I need it to insert the new domain_id with the node uid in the domain_editor table.

domain_rules.rules.inc line 41 ...function domain_rules_action_info() {

    'rules_action_set_user_domain' => array(
      'label' => t('Set domain to a node user'),
      'module' => 'Domain',
      'arguments' => array(
        'node' => array(
          'type' => 'node',
          'label' => t('Content'),
        ),
      ),
      'eval input' => array('subdomain'),
    ),

Line 159

function rules_action_set_user_domain($node, $settings) {
    
    $domain = domain_lookup(NULL, $settings['subdomain'], TRUE);

    if ($domain['domain_id']) {
        $node->domains[$domain['domain_id']] = $domain['domain_id'];
    	$domain_id = $domain['domain_id'];
        $uid->node['uid']; 
    
      db_query("INSERT INTO {domain_editor} (domain_id, uid, settings, status) VALUES (%d, '%s', %b, 1)", $domain_id, $uid, $settings);
    }
    else {
      db_query("UPDATE {domain_editor} SET status = 1 WHERE domain_id = %d AND uid = '%s'", $domain_id, $uid);
    }

    // Clear the cache.
    cache_clear_all();
  }

I know the problem is in this top part of the code, I dont know exactly how to insert into a database properly and i dont know how to get the correct uid from the current node.

domain_rules.rules_forms.inc line 88

function rules_action_set_user_domain_form($settings = array(), &$form) {

  $form['settings']['subdomain'] = array(
    '#type' => 'textfield',
    '#title' => t('Domain address'),
    '#default_value' => $settings['subdomain'],
    '#description' => t("The domain address"),
  );
}

Hope this help to get this on the roll.

Thanks @Shushu

It works perfect for me :)

edit: must say it is very well done, thanks again.