function webform_edit_field_form_prepare_validate in Webform 5

Field name validation for the webform unique key. Must be alphanumeric.

1 call to webform_edit_field_form_prepare_validate()

webform_prepare in ./webform.module

Implementation of hook_prepare(). This function is called before the display of webform_form(). Rather than a typical usage of hook_prepare, in webform it is used to update the contents of the $node object after changes have been made to the node,…

File

./webform.module, line 1102

Code

function webform_edit_field_form_prepare_validate($form_values, $node) {
  if (!preg_match('!^[a-z0-9_]+$!', $form_values['form_key'])) {
    form_set_error('field][form_key', t('The field key %field_key is invalid. Please include only lowercase alphanumeric characters and underscores.', array(
      '%field_key' => $form_values['form_key'],
    )));
  }
  foreach ($node->webformcomponents as $cid => $component) {
    if ($component['cid'] != $form_values['cid'] && strcasecmp($component['form_key'], $form_values['form_key']) == 0 && $component['parent'] == $form_values['parent']) {
      form_set_error('field][form_key', t('The field key %field_key is already in use by the field labeled %existing_field. Please use a unique key.', array(
        '%field_key' => $form_values['form_key'],
        '%existing_field' => $component['name'],
      )));
    }
  }

  // Let the field do any additional validation.
  _webform_load_components($form_values['type']);
  $validate_function = '_webform_edit_validate_' . $form_values['type'];
  if (function_exists($validate_function)) {
    $validate_function($form_values);
  }
}