如何在drupal 7中向用户/注册页面表单添加文本字段？

我想在Drupal 7用户/注册页面中修改并添加文本字段。我知道表格是由函数生成的user_register_form()

我可以用这种方式添加文本框吗？

function bartik_copy_user_login($form, &$form_state) {
  global $user;

  // If we are already logged on, go to the user page instead.
  if ($user->uid) {
    drupal_goto('user/' . $user->uid);
  }

  // Display login form:
  $form['name'] = array('#type' => 'textfield',
    '#title' => t('Username'),
    '#size' => 60,
    '#maxlength' => USERNAME_MAX_LENGTH,
    '#required' => TRUE,
  );

  $form['name']['#description'] = t('Enter your @s username.', array('@s' => variable_get('site_name', 'Drupal')));
  $form['pass'] = array('#type' => 'password',
    '#title' => t('Password'),
    '#description' => t('Enter that accompanies your username.'),
    '#required' => TRUE,
  );
$form['address'] = array('#type' => 'textfield',
    '#title' => t('Your address'),
    '#size' => 60,
    '#maxlength' => 125,
    '#required' => TRUE,
  );

  $form['#validate'] = user_login_default_validators();
  $form['actions'] = array('#type' => 'actions');
  $form['actions']['submit'] = array('#type' => 'submit', '#value' => t('Log in'));

  return $form;
}

我宁愿实现hook_form_FORM_ID_alter（）来添加表单字段。

function mymodule_form_user_register_form_alter(&$form, &$form_state, $form_id) {
  $form['address'] = array('#type' => 'textfield',
    '#title' => t('Your address'),
    '#size' => 60,
    '#maxlength' => 125,
    '#required' => TRUE,
  );
}

这样，表格字段将被添加到注册表格中。

Drupal 7提供了通过来向用户添加自定义字段的功能admin/config/people/accounts/fields。此功能应该已经在核心中。

有关如何以编程方式将字段添加到用户配置文件以及如何在“用户注册”表单中使用或不使用它们的示例。

function MYMODULE_enable() {
  // Check if our field is not already created.
  if (!field_info_field('field_myField')) {
    $field = array(
      'field_name' => 'field_myField', 
      'type' => 'text', 
    );

    field_create_field($field);

    // Create the instance on the bundle.
    $instance = array(
      'field_name' => 'field_myField', 
      'entity_type' => 'user', 
      'label' => 'My Field Name', 
      'bundle' => 'user', 
      // If you don't set the "required" property then the field wont be required by default.
      'required' => TRUE,
      'settings' => array(
        // Here you inform either or not you want this field showing up on the registration form.
        'user_register_form' => 1,
      ),
      'widget' => array(
        'type' => 'textfield',
      ), 
    );

    field_create_instance($instance);
  }
}

您可以使用hook_form_FORM_ID_alter（）在Drupal 7中向注册表单添加新字段。

这是添加其他电子邮件确认字段（包括验证回调）的示例。

/**
 * Implements hook_form_FORM_ID_alter().
 */
function foo_form_user_register_form_alter(&$form, &$form_state, $form_id) {
  $form['account']['mail_confirm'] = array(
    '#type' => 'textfield',
    '#title' => t('Confirm e-mail address'),
    '#maxlength' => EMAIL_MAX_LENGTH,
    '#description' => t('Please confirm your e-mail address.'),
    '#required' => TRUE,
  );
  $form['#validate'][] = 'foo_user_register_form_validate';
}

/**
 * Implements validation callback.
 */
function foo_user_register_form_validate(&$form, &$form_state) {
  if ($form_state['values']['mail'] != $form_state['values']['mail_confirm']) {
    form_set_error('mail_confirm', 'The email addresses must match.');
  }
}