home | career | drupal | java | mac | mysql | perl | php | scala | uml | unix

Drupal example source code file (menu_test.module)

This example Drupal source code file (menu_test.module) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

access, arguments, array, callback, content, function, menu_test_callback, node, node_page_default, page, theme, title, type

The menu_test.module Drupal example source code

<?php
// $Id: menu_test.module,v 1.21 2010/12/02 17:34:24 webchick Exp $

/**
 * @file
 * Dummy module implementing hook menu.
 */

/**
 * Implements hook_menu().
 */
function menu_test_menu() {
  // The name of the menu changes during the course of the test. Using a $_GET.
  $items['menu_name_test'] = array(
    'title' => 'Test menu_name router item',
    'page callback' => 'node_save',
    'menu_name' => menu_test_menu_name(),
  );
  // Use FALSE as 'title callback' to bypass t().
  $items['menu_no_title_callback'] = array(
    'title' => 'A title with @placeholder',
    'title callback' => FALSE,
    'title arguments' => array('@placeholder' => 'some other text'),
    'page callback' => 'menu_test_callback',
    'access arguments' => array('access content'),
  );

  // Hidden link for menu_link_maintain tests
  $items['menu_test_maintain/%'] = array(
    'title' => 'Menu maintain test',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
   );
  // Hierarchical tests.
  $items['menu-test/hierarchy/parent'] = array(
    'title' => 'Parent menu router',
    'page callback' => 'node_page_default',
  );
  $items['menu-test/hierarchy/parent/child'] = array(
    'title' => 'Child menu router',
    'page callback' => 'node_page_default',
  );
  $items['menu-test/hierarchy/parent/child2/child'] = array(
    'title' => 'Unattached subchild router',
    'page callback' => 'node_page_default',
  );
  // Theme callback tests.
  $items['menu-test/theme-callback/%'] = array(
    'title' => 'Page that displays different themes',
    'page callback' => 'menu_test_theme_page_callback',
    'access arguments' => array('access content'),
    'theme callback' => 'menu_test_theme_callback',
    'theme arguments' => array(2),
  );
  $items['menu-test/theme-callback/%/inheritance'] = array(
    'title' => 'Page that tests theme callback inheritance.',
    'page callback' => 'menu_test_theme_page_callback',
    'page arguments' => array(TRUE),
    'access arguments' => array('access content'),
  );
  $items['menu-test/no-theme-callback'] = array(
    'title' => 'Page that displays different themes without using a theme callback.',
    'page callback' => 'menu_test_theme_page_callback',
    'access arguments' => array('access content'),
  );
  // Path containing "exotic" characters.
  $path = "menu-test/ -._~!$'\"()*@[]?&+%#,;=:" . // "Special" ASCII characters.
    "%23%25%26%2B%2F%3F" . // Characters that look like a percent-escaped string.
    "éøïвβ中國書۞"; // Characters from various non-ASCII alphabets.
  $items[$path] = array(
    'title' => '"Exotic" path',
    'page callback' => 'menu_test_callback',
    'access arguments' => array('access content'),
  );

  // Hidden tests; base parents.
  // Same structure as in Menu and Block modules. Since those structures can
  // change, we need to simulate our own in here.
  $items['menu-test'] = array(
    'title' => 'Menu test root',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );
  $items['menu-test/hidden'] = array(
    'title' => 'Hidden test root',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );

  // Hidden tests; one dynamic argument.
  $items['menu-test/hidden/menu'] = array(
    'title' => 'Menus',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );
  $items['menu-test/hidden/menu/list'] = array(
    'title' => 'List menus',
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );
  $items['menu-test/hidden/menu/add'] = array(
    'title' => 'Add menu',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_ACTION,
  );
  $items['menu-test/hidden/menu/settings'] = array(
    'title' => 'Settings',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_TASK,
    'weight' => 5,
  );
  $items['menu-test/hidden/menu/manage/%menu'] = array(
    'title' => 'Customize menu',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );
  $items['menu-test/hidden/menu/manage/%menu/list'] = array(
    'title' => 'List links',
    'weight' => -10,
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
  );
  $items['menu-test/hidden/menu/manage/%menu/add'] = array(
    'title' => 'Add link',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_ACTION,
  );
  $items['menu-test/hidden/menu/manage/%menu/edit'] = array(
    'title' => 'Edit menu',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_TASK,
    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
  );
  $items['menu-test/hidden/menu/manage/%menu/delete'] = array(
    'title' => 'Delete menu',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );

  // Hidden tests; two dynamic arguments.
  $items['menu-test/hidden/block'] = array(
    'title' => 'Blocks',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );
  $items['menu-test/hidden/block/list'] = array(
    'title' => 'List',
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );
  $items['menu-test/hidden/block/add'] = array(
    'title' => 'Add block',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_ACTION,
  );
  $items['menu-test/hidden/block/manage/%/%'] = array(
    'title' => 'Configure block',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
  );
  $items['menu-test/hidden/block/manage/%/%/configure'] = array(
    'title' => 'Configure block',
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'context' => MENU_CONTEXT_INLINE,
  );
  $items['menu-test/hidden/block/manage/%/%/delete'] = array(
    'title' => 'Delete block',
    'page callback' => 'node_page_default',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_TASK,
    'context' => MENU_CONTEXT_NONE,
  );

  // Breadcrumbs tests.
  // @see MenuBreadcrumbTestCase
  $base = array(
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );
  // Local tasks: Second level below default local task.
  $items['menu-test/breadcrumb/tasks'] = array(
    'title' => 'Breadcrumbs test: Local tasks',
  ) + $base;
  $items['menu-test/breadcrumb/tasks/first'] = array(
    'title' => 'First',
    'type' => MENU_DEFAULT_LOCAL_TASK,
  ) + $base;
  $items['menu-test/breadcrumb/tasks/second'] = array(
    'title' => 'Second',
    'type' => MENU_LOCAL_TASK,
  ) + $base;
  $items['menu-test/breadcrumb/tasks/first/first'] = array(
    'title' => 'First first',
    'type' => MENU_DEFAULT_LOCAL_TASK,
  ) + $base;
  $items['menu-test/breadcrumb/tasks/first/second'] = array(
    'title' => 'First second',
    'type' => MENU_LOCAL_TASK,
  ) + $base;
  $items['menu-test/breadcrumb/tasks/second/first'] = array(
    'title' => 'Second first',
    'type' => MENU_DEFAULT_LOCAL_TASK,
  ) + $base;
  $items['menu-test/breadcrumb/tasks/second/second'] = array(
    'title' => 'Second second',
    'type' => MENU_LOCAL_TASK,
  ) + $base;

  // File inheritance tests. This menu item should inherit the page callback
  // system_admin_menu_block_page() and therefore render its children as links
  // on the page.
  $items['admin/config/development/file-inheritance'] = array(
    'title' => 'File inheritance',
    'description' => 'Test file inheritance',
    'access arguments' => array('access content'),
  );
  $items['admin/config/development/file-inheritance/inherit'] = array(
    'title' => 'Inherit',
    'description' => 'File inheritance test description',
    'page callback' => 'menu_test_callback',
    'access arguments' => array('access content'),
  );

  $items['menu_login_callback'] = array(
    'title' => 'Used as a login path',
    'page callback' => 'menu_login_callback',
    'access callback' => TRUE,
  );

  $items['menu-title-test/case1'] = array(
   'title' => 'Example title - Case 1',
   'access callback' => TRUE,
   'page callback' => 'menu_test_callback',
  );
  $items['menu-title-test/case2'] = array(
   'title' => 'Example @sub1 - Case @op2',
   // If '2' is not in quotes, the argument becomes arg(2).
   'title arguments' => array('@sub1' => 'title', '@op2' => '2'),
   'access callback' => TRUE,
   'page callback' => 'menu_test_callback',
  );
  $items['menu-title-test/case3'] = array(
   'title' => 'Example title',
   'title callback' => 'menu_test_title_callback',
   'access callback' => TRUE,
   'page callback' => 'menu_test_callback',
  );
  $items['menu-title-test/case4'] = array(
   // Title gets completely ignored. Good thing, too.
   'title' => 'Bike sheds full of blue smurfs',
   'title callback' => 'menu_test_title_callback',
   // If '4' is not in quotes, the argument becomes arg(4).
   'title arguments' => array('Example title', '4'),
   'access callback' => TRUE,
   'page callback' => 'menu_test_callback',
  );

  // Load arguments inheritance test.
  $items['menu-test/arguments/%menu_test_argument/%'] = array(
    'title' => 'Load arguments inheritance test',
    'load arguments' => array(3),
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );
  $items['menu-test/arguments/%menu_test_argument/%/default'] = array(
    'title' => 'Default local task',
    'type' => MENU_DEFAULT_LOCAL_TASK,
  );
  $items['menu-test/arguments/%menu_test_argument/%/task'] = array(
    'title' => 'Local task',
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
    'type' => MENU_LOCAL_TASK,
  );
  // For this path, load arguments should be inherited for the first loader only.
  $items['menu-test/arguments/%menu_test_argument/%menu_test_other_argument/common-loader'] = array(
    'title' => 'Local task',
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
    'type' => MENU_LOCAL_TASK,
  );
  // For these paths, no load arguments should be inherited.
  // Not on the same position.
  $items['menu-test/arguments/%/%menu_test_argument/different-loaders-1'] = array(
    'title' => 'An item not sharing the same loader',
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );
  // Not the same loader.
  $items['menu-test/arguments/%menu_test_other_argument/%/different-loaders-2'] = array(
    'title' => 'An item not sharing the same loader',
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );
  // Not the same loader.
  $items['menu-test/arguments/%/%/different-loaders-3'] = array(
    'title' => 'An item not sharing the same loader',
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );
  // Explict load arguments should not be overriden (even if empty).
  $items['menu-test/arguments/%menu_test_argument/%/explicit-arguments'] = array(
    'title' => 'An item defining explicit load arguments',
    'load arguments' => array(),
    'page callback' => 'menu_test_callback',
    'access callback' => TRUE,
  );

  return $items;
}

/**
 * Dummy argument loader for hook_menu() to point to.
 */
function menu_test_argument_load($arg1) {
  return FALSE;
}

/**
 * Dummy argument loader for hook_menu() to point to.
 */
function menu_test_other_argument_load($arg1) {
  return FALSE;
}

/**
 * Dummy callback for hook_menu() to point to.
 *
 * @return
 *  A random string.
 */
function menu_test_callback() {
  return 'This is menu_test_callback().';
}

/**
 * Page callback to use when testing the theme callback functionality.
 *
 * @param $inherited
 *   An optional boolean to set to TRUE when the requested page is intended to
 *   inherit the theme of its parent.
 * @return
 *   A string describing the requested custom theme and actual theme being used
 *   for the current page request.
 */
function menu_test_theme_page_callback($inherited = FALSE) {
  global $theme_key;
  // Initialize the theme system so that $theme_key will be populated.
  drupal_theme_initialize();
  // Now check both the requested custom theme and the actual theme being used.
  $custom_theme = menu_get_custom_theme();
  $requested_theme = empty($custom_theme) ? 'NONE' : $custom_theme;
  $output = "Custom theme: $requested_theme. Actual theme: $theme_key.";
  if ($inherited) {
    $output .= ' Theme callback inheritance is being tested.';
  }
  return $output;
}

/**
 * Theme callback to use when testing the theme callback functionality.
 *
 * @param $argument
 *   The argument passed in from the URL.
 * @return
 *   The name of the custom theme to request for the current page.
 */
function menu_test_theme_callback($argument) {
  // Test using the variable administrative theme.
  if ($argument == 'use-admin-theme') {
    return variable_get('admin_theme');
  }
  // Test using a theme that exists, but may or may not be enabled.
  elseif ($argument == 'use-stark-theme') {
    return 'stark';
  }
  // Test using a theme that does not exist.
  elseif ($argument == 'use-fake-theme') {
    return 'fake_theme';
  }
  // For any other value of the URL argument, do not return anything. This
  // allows us to test that returning nothing from a theme callback function
  // causes the page to correctly fall back on using the main site theme.
}

/**
 * Implement hook_custom_theme().
 *
 * @return
 *   The name of the custom theme to use for the current page.
 */
function menu_test_custom_theme() {
  // If an appropriate variable has been set in the database, request the theme
  // that is stored there. Otherwise, do not attempt to dynamically set the
  // theme.
  if ($theme = variable_get('menu_test_hook_custom_theme_name', FALSE)) {
    return $theme;
  }
}

/**
 * Helper function for the testMenuName() test. Used to change the menu_name
 * parameter of a menu.
 *
 * @param $new_name
 *   If set, will change the menu_name value.
 * @return
 *   The menu_name value to use.
 */
function menu_test_menu_name($new_name = '') {
  static $name = 'original';
  if ($new_name) {
    $name = $new_name;
  }
  return $name;
}

/**
 * Implements hook_menu_link_insert().
 *
 * @return
 *  A random string.
 */
function menu_test_menu_link_insert($item) {
  menu_test_static_variable('insert');
}

/**
 * Implements hook_menu_link_update().
 *
 * @return
 *  A random string.
 */
function menu_test_menu_link_update($item) {
  menu_test_static_variable('update');
}

/**
 * Implements hook_menu_link_delete().
 *
 * @return
 *  A random string.
 */
function menu_test_menu_link_delete($item) {
  menu_test_static_variable('delete');
}

/**
 * Static function for testing hook results.
 *
 * @param $value
 *   The value to set or NULL to return the current value.
 * @return
 *   A text string for comparison to test assertions.
 */
function menu_test_static_variable($value = NULL) {
  static $variable;
  if (!empty($value)) {
    $variable = $value;
  }
  return $variable;
}

/**
 * Implements hook_menu_site_status_alter().
 */
function menu_test_menu_site_status_alter(&$menu_site_status, $path) {
  // Allow access to ?q=menu_login_callback even if in maintenance mode.
  if ($menu_site_status == MENU_SITE_OFFLINE && $path == 'menu_login_callback') {
    $menu_site_status = MENU_SITE_ONLINE;
  }
}

/**
 * Menu callback to be used as a login path.
 */
function menu_login_callback() {
  return 'This is menu_login_callback().';
}

/**
 * Concatenates a string, by using the t() function and a case number.
 *
 * @param $title
 *   Title string.
 * @param $case_number
 *   The current case number which is tests (defaults to 3).
 */
function menu_test_title_callback($title, $case_no = 3) {
  return t($title) . ' - Case ' . $case_no;
}

Other Drupal examples (source code examples)

Here is a short list of links related to this Drupal menu_test.module source code file:

new blog posts

"Drupal" is a registered trademark of Dries Buytaert.

my drupal tutorials and examples  

Copyright 1998-2016 Alvin Alexander, alvinalexander.com
All Rights Reserved.

Beginning in 2016, a portion of the proceeds from pages under the '/drupal-code-examples/' URI will be donated to charity.