addanother.module in Add Another 6

Presents users with an option to create another node of the same type after a node is added.

File

addanother.module

<?php

/**
 * @file
 * Presents users with an option to create another node of the same type after a
 * node is added.
 */

/**
 * Implementation of hook_help().
 */
function addanother_help($path, $arg) {
  $output = '';
  switch ($path) {
    case "admin/help#addanother":
      $output = '<p>' . t("Presents users with an option to create another node of the same type after a node is added.") . '</p>';
      return $output;
    case 'admin/settings/addanother':
      $output = 'Here you can select the content types for which an <em>"Add another..."</em> message will be displayed. After creating a new content node, users with the <a href="@addanother_perm">use add another</a> permission will receive a message allowing them to add another content node of the same type.';
      return '<p>' . t($output, array(
        '@addanother_perm' => url('admin/user/permissions', array(
          'fragment' => 'module-addanother',
        )),
      )) . '</p>';
  }
}

/**
 * Implementation of hook_perm().
 */
function addanother_perm() {
  return array(
    'administer add another',
    'use add another',
  );
}

/**
 * Implementation of hook_menu().
 */
function addanother_menu() {
  $items = array();
  $items['admin/settings/addanother'] = array(
    'title' => 'Add another',
    'description' => 'Modify which node types display the Add another message.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'addanother_admin',
    ),
    'access arguments' => array(
      'administer add another',
    ),
    'type' => MENU_NORMAL_ITEM,
  );
  $items['node/%/addanother'] = array(
    'title' => 'Add another',
    'page callback' => 'addanother_goto',
    'page arguments' => array(
      1,
    ),
    'access callback' => 'addanother_access',
    'access arguments' => array(
      1,
    ),
    'weight' => 5,
    'type' => MENU_LOCAL_TASK,
  );
  return $items;
}

/**
 * Check if we should display the Add another verbage on a node.
 */
function addanother_access($nid) {
  $allowed_nodetypes = variable_get('addanother_nodetypes', array());
  $node = node_load($nid);
  if (arg(2) == "edit" && !variable_get('addanother_tab_edit', FALSE)) {
    return FALSE;
  }
  if ($node && variable_get('addanother_tab', FALSE) && isset($allowed_nodetypes[$node->type]) && $allowed_nodetypes[$node->type] && user_access('use add another') && node_access('create', $node->type)) {
    return TRUE;
  }
  return FALSE;
}

/**
 * Takes the user to the node creation page for the type of a given node.
 */
function addanother_goto($nid) {
  if ($node = node_load($nid)) {
    drupal_goto('node/add/' . str_replace('_', '-', $node->type));
  }
  else {
    drupal_goto('node/add');
  }
}

/**
 * This function sets up the admin/settings/addanother settings page.
 */
function addanother_admin() {
  $form['addanother_nodes'] = array(
    '#type' => 'fieldset',
    '#title' => t('Content settings'),
  );
  $form['addanother_nodes']['addanother_nodetypes'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Enable Add another for these content types'),
    '#options' => node_get_types('names'),
    '#default_value' => variable_get('addanother_nodetypes', array()),
    '#description' => 'An <em>Add another</em> message will be shown after creating these content types',
  );
  $form['addanother_display'] = array(
    '#type' => 'fieldset',
    '#title' => t('Display settings'),
  );
  $form['addanother_display']['addanother_message'] = array(
    '#type' => 'checkbox',
    '#title' => t('Display the Add another message after node creation.'),
    '#default_value' => variable_get('addanother_message', TRUE),
  );
  $form['addanother_display']['addanother_tab'] = array(
    '#type' => 'checkbox',
    '#title' => t('Display the Add another tab on supported node types.'),
    '#default_value' => variable_get('addanother_tab', FALSE),
  );
  $form['addanother_display']['addanother_tab_edit'] = array(
    '#type' => 'checkbox',
    '#title' => t('Also display the Add another tab on supported node edit pages.'),
    '#default_value' => variable_get('addanother_tab_edit', FALSE),
  );
  return system_settings_form($form);
}

/**
 * Implementation of hook_nodeapi().
 */
function addanother_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'insert':
      if ($node->op == t('Save and create another')) {

        // This prevents Add another's message from clashing with Submit Again.
        return;
      }
      $allowed_nodetypes = variable_get('addanother_nodetypes', array());
      if (user_access('use add another') && isset($allowed_nodetypes[$node->type]) && $allowed_nodetypes[$node->type]) {
        global $_addanother_message;
        $_addanother_message = t('Add another <a href="@typeurl">%type</a>.', array(
          '@typeurl' => url('node/add/' . str_replace('_', '-', $node->type)),
          '%type' => node_get_types('name', $node),
        ));
      }
      break;
  }
}

/**
 * Implementation of hook_form_alter().
 */
function addanother_form_alter(&$form, $form_state, $form_id) {
  if (isset($form['#node']) && $form['#node']->type . '_node_form' == $form_id && variable_get('addanother_message', TRUE)) {
    $form['buttons']['submit']['#submit'][] = '_addanother_message';
  }
}

/**
 * Display the Add another message if set by addanother_nodeapi().
 */
function _addanother_message($form, &$form_state) {
  global $_addanother_message;
  if (isset($_addanother_message)) {
    drupal_set_message($_addanother_message, 'status', FALSE);
  }
}

Functions

Name	Description
addanother_access	Check if we should display the Add another verbage on a node.
addanother_admin	This function sets up the admin/settings/addanother settings page.
addanother_form_alter	Implementation of hook_form_alter().
addanother_goto	Takes the user to the node creation page for the type of a given node.
addanother_help	Implementation of hook_help().
addanother_menu	Implementation of hook_menu().
addanother_nodeapi	Implementation of hook_nodeapi().
addanother_perm	Implementation of hook_perm().
_addanother_message	Display the Add another message if set by addanother_nodeapi().