duplicate_role.module in Duplicate role 7

File

duplicate_role.module

<?php

/**
 * Implements hook_help().
 */
function duplicate_role_help($path, $arg) {
  $output = '';
  switch ($path) {
    case "admin/people/duplicate-role":
      $output = '<p>' . t("Duplicate an existing role with the same permissions for modules and taxonomies as the original ones") . '</p>';
      break;
  }
  return $output;
}

/**
 * Implements hook_permission().
 */
function duplicate_role_permission() {
  return array(
    'administer duplicate role' => array(
      'title' => t('Administer Duplicate Role'),
    ),
  );
}

/**
 * Implements hook_menu().
 */
function duplicate_role_menu() {
  $items = array();
  $items['admin/people/duplicate-role'] = array(
    'title' => 'Duplicate role',
    'description' => 'A module that duplicates an existing role and its permissions.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'duplicate_role_form',
    ),
    'access arguments' => array(
      'administer duplicate role',
    ),
    'type' => MENU_LOCAL_TASK,
    'tab_parent' => 'admin/people/permissions',
  );
  return $items;
}

/**
 * Form submit. Insert records into database.
 */
function duplicate_role_form_submit($form, &$form_state) {
  $base_role = filter_xss($form_state['values']['base_role']);
  $new_role_name = filter_xss($form_state['values']['new_role_name']);
  if (db_table_exists('role')) {

    // Create new role
    $new_role = db_insert('role');
    $new_role
      ->fields(array(
      'name' => $new_role_name,
    ));
    $new_role
      ->execute();

    // Capture new role id
    $new_role_rid = db_select('role', 'r')
      ->fields('r', array(
      'rid',
    ))
      ->condition('name', $new_role_name, '=')
      ->execute()
      ->fetchAssoc();
  }

  //Permission for old role in table "permission"
  if (db_table_exists('role_permission')) {
    $old_perms = db_select('role_permission', 'rp')
      ->fields('rp', array(
      'permission',
      'module',
    ))
      ->condition('rid', $base_role, '=')
      ->execute();
    while ($data = $old_perms
      ->fetchAssoc()) {

      // Insert permissions on new role
      $new_role_perms = db_insert('role_permission');
      $new_role_perms
        ->fields(array(
        'rid' => $new_role_rid,
        'permission' => $data['permission'],
        'module' => $data['module'],
      ));
      $new_role_perms
        ->execute();
    }
  }
  drupal_set_message(t('New role %role_name added successfully.', array(
    '%role_name' => $new_role_name,
  )));
}

/**
 * Form validate. Validate data before insert into database.
 */
function duplicate_role_form_validate($form, &$form_state) {
  $new_role_name = filter_xss($form_state['values']['new_role_name']);
  $roles = user_roles();
  if (in_array($new_role_name, $roles)) {
    form_set_error('new_role_name', t('This role %role_name already exists. Please try a different name.', array(
      '%role_name' => $new_role_name,
    )));
  }
}

/**
 * Module selection interface.
 */
function duplicate_role_form() {
  $form = array();
  $u_roles = user_roles();
  asort($u_roles);
  $options = array();
  $options[] = t('-- Please select one role --');
  foreach ($u_roles as $key => $value) {
    $options[$key] = $value;
  }
  $form['base_role'] = array(
    '#type' => 'select',
    '#title' => t('Choose role to duplicate'),
    '#default_value' => variable_get('base_role', 0),
    '#description' => t("Select role to duplicate"),
    '#options' => $options,
  );
  $form['new_role_name'] = array(
    '#type' => 'textfield',
    '#title' => t('New role'),
    '#default_value' => variable_get('new_role_name', ''),
    '#required' => TRUE,
    '#size' => 40,
    '#maxlength' => 40,
    '#description' => t("New role name"),
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Create new role'),
  );
  return $form;
}

Functions

Name	Description
duplicate_role_form	Module selection interface.
duplicate_role_form_submit	Form submit. Insert records into database.
duplicate_role_form_validate	Form validate. Validate data before insert into database.
duplicate_role_help	Implements hook_help().
duplicate_role_menu	Implements hook_menu().
duplicate_role_permission	Implements hook_permission().