Attempt to read property "language" on null/var/www/html/limesurvey_test/application/models/Response.php(265)253     }
254 
255     public function browse()
256     {
257     }
258     public function search()
259     {
260     }
261 
262     public static function getEncryptedAttributes($surveyid = 0)
263     {
264         $survey = Survey::model()->findByPk($surveyid);
265         $fieldmap = createFieldMap($survey, 'full', false, false, $survey->language);
266         $aAttributes = array();
267         foreach ($fieldmap as $field) {
268             if (array_key_exists('encrypted', $field) &&  $field['encrypted'] == 'Y') {
269                 $aAttributes[] = $field['fieldname'];
270             }
271         }
272         return $aAttributes;
273     }
274 
275     /**
276      * Set all the specified attributes.
277      * If any attribute doesn't exist in the DB, an Exception is thrown.