original_string: public function get_last_calculated_time($qubaids) {
          global $DB;
  
          $timemodified = time() - self::TIME_TO_CACHE;
          return $DB->get_field_select('question_statistics', 'timemodified', 'hashcode = ? AND timemodified > ?',
                                       array($qubaids->get_hash_code(), $timemodified), IGNORE_MULTIPLE);
      }
code: public function get_last_calculated_time($qubaids) {
          global $DB;
  
          $timemodified = time() - self::TIME_TO_CACHE;
          return $DB->get_field_select('question_statistics', 'timemodified', 'hashcode = ? AND timemodified > ?',
                                       array($qubaids->get_hash_code(), $timemodified), IGNORE_MULTIPLE);
      }
code_tokens: public function get_last_calculated_time ( $ qubaids ) { global $ DB ; $ timemodified = time ( ) - self :: TIME_TO_CACHE ; return $ DB -> get_field_select ( 'question_statistics' , 'timemodified' , 'hashcode = ? AND timemodified > ?' , array ( $ qubaids -> get_hash_code ( ) , $ timemodified ) , IGNORE_MULTIPLE ) ; }
docstring: Find time of non-expired statistics in the database.
  
  @param \qubaid_condition $qubaids Which question usages to look for stats for?
  @return int|bool Time of cached record that matches this qubaid_condition or false if non found.
docstring_tokens: Find time of non - expired statistics in the database .