Tag Archives: drupal 7

Replace menu links in Drupal 7 using menu_link & menu_tree hooks

Want to add span elements to menu, change ul id or add classes? Need images in menu or some custom style? You can do that by using menu_link for menu items and menu_tree hook for menus itself. To replace all menus remove __MENUNAME.

// Customize menu li & links
function MYTHEME_menu_link__MENUNAME($variables) 
	$element	= $variables['element'];
	$sub_menu	= '';

	if ($element['#below']) {
		$sub_menu = drupal_render($element['#below']);

	// Enable this to use html in title, eg img, span or something else...
	$element['#localized_options']['html'] = true;

	$link = l('<span>' . $element['#title'] . '</span>', $element['#href'], $element['#localized_options']);

	return '<li' . drupal_attributes($element['#attributes']) . '>' . $link . $sub_menu . "</li>\n";

// Customize menu ul
function MYTHEME_menu_tree__MENUNAME($variables) 
	// Change id of menu ul
	return '<ul id="my-custom-menu-id">' . $variables['tree'] . '</ul>';

You can probably use preprocess_menu_link or preprocess_links as well, but this seems to be easiest way. Read more about it here.

Requiring files in Drupal 6 & 7

I have seen a lot of Drupal modules where requiring php files is done like this

$module = 'my_module';
require_once(DRUPAL_ROOT . '/' . drupal_get_path('module', $module) . '/test.php');

While this is totally right i still encourage you to use special function for this called “module_load_include“.

module_load_include('php', 'my_module', 'test');

Logging in Drupal 7

In case you need to log errors and other messages  in Drupal 7 use may use it’s watchdog function. Same thing will work for Drupal 6.

watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NOTICE, $link = NULL)

Example with some data:

watchdog('Booking', 'Sucessfully booked for %persons', array('%persons' => 5), WATCHDOG_INFO);


Read more from Drupal 7 documentation


Adding content programmatically in Drupal 7

Sometimes you really need to add content programmatically and here’s a little sample about the basics.

$node = new stdClass(); 

// Set content type
$node->type = 'article';

// Prepare defaults

// Define language (currently language neutral)
$node->language = LANGUAGE_NONE;

// Basic content
$node->title = 'Test';
$node->body[$node->language][0]['value'] = 'Body text';

// Example if using custom fields
$node->field_CUSTOM_FIELD[$node->language][0]['value'] = 'Value';
// Example if using fields that are taxonomy type
$node->field_CUSTOM_FIELD_TAXONOMY[$node->language][0]['tid'] = 1;

// Save node

For updating nodes load them first with:

// Node id you want to update
$nid = 1;
$node = node_load($nid);

And if you want to use revisions add the following:

$node->revision = 1;
$node->log = 'Node updated at ' . date('F j, Y, G:i');