menu_force.module in Menu Force 7

This module enables you to make Menu Settings required on specific content types

It forces a node from one or more content types to be included in the menu system before the content will be saved successfully. This can be useful in a number of situations, e.g. when using [menupath-raw] in the pathauto settings, which expects a node to live in the menu system. This module makes sure it does.

Based on the PHP snippet of @Keyz (http://drupal.org/node/466620)

File

menu_force.module

<?php

/**
 * @file
 * This module enables you to make Menu Settings required on specific content types
 *
 * It forces a node from one or more content types to be included in the menu system
 * before the content will be saved successfully. This can be useful in a number of
 * situations, e.g. when using [menupath-raw] in the pathauto settings, which expects
 * a node to live in the menu system. This module makes sure it does.
 *
 * Based on the PHP snippet of @Keyz (http://drupal.org/node/466620)
 */

/**
* Implements hook_form_alter().
*/
function menu_force_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'node_type_form') {
    $form['menu']['menu_force'] = array(
      '#type' => 'checkbox',
      '#title' => t('Make the Menu Settings mandatory for this content type'),
      '#description' => t('Enabling this will force the user to add the node to the menu system.'),
      '#default_value' => variable_get('menu_force_' . $form['#node_type']->type, FALSE),
    );
    $form['menu']['menu_force_parent'] = array(
      '#type' => 'checkbox',
      '#title' => t('Lock the "Default parent item" as well'),
      '#description' => t('Enabling this will lock the parent item choice, forcing created content to a chosen parent in the menu.'),
      '#default_value' => variable_get('menu_force_parent_' . $form['#node_type']->type, FALSE),
      '#states' => array(
        'invisible' => array(
          'input[name="menu_force"]' => array(
            'checked' => FALSE,
          ),
        ),
      ),
    );
    $form['#validate'][] = 'menu_force_node_type_form_validate';
    $form['#submit'][] = 'menu_force_node_type_form_submit';
  }

  // If the menu settings have been forced, alter the form add/edit form
  $node_types = node_type_get_types();
  foreach ($node_types as $type) {
    if ($form_id == $type->type . '_node_form') {
      if (variable_get('menu_force_' . $type->type, FALSE)) {

        // Make the menu entry required by hiding the
        // checkbox and setting the link title required
        $form['menu']['enabled']['#value'] = TRUE;
        $form['menu']['enabled']['#type'] = 'value';
        $form['menu']['link']['link_title']['#required'] = TRUE;
        $form['#attached']['js'][] = drupal_get_path('module', 'menu_force') . '/menu_force.js';
      }
      if (variable_get('menu_force_parent_' . $type->type, FALSE)) {

        //disable the drop down option as required
        $form['menu']['link']['parent']['#disabled'] = TRUE;
      }
    }
  }
}

/**
 *  Validate the menu_force settings when a content type form has been submitted
 */
function menu_force_node_type_form_validate($form, &$form_state) {
  if ($form_state['values']['menu_force_parent']) {
    $menu_parent = $form_state['values']['menu_parent'];
    list($menu, $menu_item) = explode(':', $form_state['values']['menu_parent']);

    // Print an error if a menu is selected instead of a menu_item
    if ($menu && $menu_item == 0) {
      form_set_error('menu_parent', t('If you want to force a Default parent menu item, please select which one.'));
    }
  }
}

/**
 *  Saves the menu_force settings when a content type form has been submitted
 */
function menu_force_node_type_form_submit(&$form, $form_state) {
  $force_menu = $form_state['values']['menu_force'];
  $force_menu_parent = $form_state['values']['menu_force_parent'];
  if ($force_menu) {
    variable_set('menu_force_' . $form_state['values']['type'], TRUE);
  }
  else {
    variable_del('menu_force_' . $form_state['values']['type']);
  }
  if ($force_menu_parent) {
    variable_set('menu_force_parent_' . $form_state['values']['type'], TRUE);
  }
  else {
    variable_del('menu_force_parent_' . $form_state['values']['type']);
  }
}

/**
 *  Delete the menu_force setting when a content type is deleted
 */
function menu_force_type_delete_confirm(&$form, $form_state) {
  variable_del('menu_force_' . $form_state['values']['type']);
  variable_del('menu_force_parent_' . $form_state['values']['type']);
}

Functions

Name	Description
menu_force_form_alter	Implements hook_form_alter().
menu_force_node_type_form_submit	Saves the menu_force settings when a content type form has been submitted
menu_force_node_type_form_validate	Validate the menu_force settings when a content type form has been submitted
menu_force_type_delete_confirm	Delete the menu_force setting when a content type is deleted