Question

我在自定义模块中创建了一个表单我尝试为文本字段'distance [postal_code]'

添加验证

但没有用！

谁能帮帮我？

Hook_menu：

function location_search_menu() {
  $items = array();
  $items['markten'] = array( //this creates a URL
    'title' => 'Markten, nog toegankelijker!', //page title
    'page callback' => 'drupal_get_form', //this is the function that will be called when the page is accessed.  for a form, use drupal_get_form
    'page arguments' => array('location_search_form'), //put the name of the form here
    'access callback' => TRUE
  );
  return $items;
}

表格：

    function location_search_form($form, &$form_state) {
      $form['#prefix'] = '<div id="postal-code-search"><h2>Markten vandaag in de buurt...</h2>';
      $form['#sufix'] = '</div>';
      $form['#attributes'] = array('id' => 'postal-code-form');
      $form['#method'] = 'get';
      $form['#action'] = '/location-list'; // make url 
      $form['distance[postal_code]'] = array(
        '#type' => 'textfield', //postal code field
        '#size' => 10,
        '#maxlength' => 10,
        '#required' => TRUE, //make this field required
        '#attributes' =>array('placeholder' => t('Postal code')),
      );
 $form['submit_button'] = array(
    '#type' => 'submit',
    '#value' => t('Search'),
    '#name' => '', // unset 'op'
  );
      return $form;
    }

验证：

function location_search_validate($form, &$form_state) {
  $pc = $form_state['values']['distance[postal_code]'];
  if(empty($pc) || $pc == '') {
    form_set_error('distance[postal_code]', t('Postal code is required!'));
  }
}

Answer 1

尝试：

$form['distance[postal_code]'] = array(
        '#type' => 'textfield', //postal code field
        '#size' => 10,
        '#maxlength' => 10,
        '#required' => TRUE, //make this field required
        '#element_validate' => array('empty_element_validation'),
        '#attributes' =>array('placeholder' => t('Postal code')),
      );



function empty_element_validation($element, &$form_state, $form) {
   if (empty($element['#value'])) {
     //form_set_error('distance[postal_code]', t('Postal code is required!'));
     form_error($element, t('Postal code is required!'));
   }
}

Answer 2

我发现问题出现在这段代码中：

...
$form['#method'] = 'get';
$form['#action'] = '/location-list';
...

这段代码：

...
$form['#after_build'][] = 'location_search_form_modify';
...
function location_search_form_modify($form){ // remove form_token, form_build_id, form_id from url
  unset($form['form_token']);
  unset($form['form_build_id']);
  unset($form['form_id']);
  return $form;
}
...

如果表单已提交，则会重定向到“获取”网址，并忽略验证

Drupal 7：表单验证

2 个答案: