function node_import_check_boolean in Node import 6

Check if the value is a valid boolean (1, 0, true, false, yes, no, on, off).

Uses: nothing.

Related topics

1 string reference to 'node_import_check_boolean'

node_import_fields in ./node_import.inc

Returns a list of available content fields for given node_import type.

File

./node_import.inc, line 1151

Public API of the Node import module.

Code

function node_import_check_boolean(&$value, $field, $options, $preview) {
  static $trues;
  static $falses;
  if (!isset($trues)) {
    $trues = array(
      '1',
      'on',
      drupal_strtolower(t('On')),
      'yes',
      drupal_strtolower(t('Yes')),
      'true',
      drupal_strtolower(t('True')),
    );
    $falses = array(
      '0',
      'off',
      drupal_strtolower(t('Off')),
      'no',
      drupal_strtolower(t('No')),
      'false',
      drupal_strtolower(t('False')),
    );
  }
  if (in_array(drupal_strtolower($value), $trues, TRUE)) {
    $value = '1';
    return TRUE;
  }
  else {
    if (in_array(drupal_strtolower($value), $falses, TRUE)) {
      $value = '0';
      return TRUE;
    }
  }
  node_import_input_error(t('Input error: %value is not allowed for %name (not a boolean).', array(
    '%value' => $value,
    '%name' => $field['title'],
  )));
  return FALSE;
}