function webform_encrypt_uninstall in Webform Encrypt 6

Same name and namespace in other branches

1. 8 webform_encrypt.install \webform_encrypt_uninstall()
2. 7 webform_encrypt.install \webform_encrypt_uninstall()

Implementation of hook_uninstall().

File

./webform_encrypt.install, line 21

Contains install- and update-related functions for the Webform Encrypt module.

Code

function webform_encrypt_uninstall() {
  variable_del('webform_encrypt_match_user');

  // Decrypt all encrypted form values.
  $components = array();
  $query = db_query('SELECT nid, cid, extra FROM {webform_component}');
  while ($row = db_fetch_object($query)) {
    $components[$row->nid . ':' . $row->cid] = unserialize($row->extra);
  }
  $query = db_query('SELECT nid, sid, cid, no, data FROM {webform_submitted_data}');
  while ($row = db_fetch_object($query)) {
    $key = $row->nid . ':' . $row->cid;
    if (!empty($components[$key]['encrypt']) && is_array(@unserialize($row->data))) {
      $row->data = decrypt($row->data, array(
        'base64' => TRUE,
      ));
      drupal_write_record('webform_submitted_data', $row, array(
        'nid',
        'sid',
        'cid',
        'no',
      ));
    }
  }
}