original_string: protected function validate_duedate($value) {
  
          // During update.
          if ($this->get('id')) {
              $before = $this->beforeupdate->get('duedate');
  
              // The value has not changed, then it's always OK.
              if ($before == $value) {
                  return true;
              }
          }
  
          // During create and update, the date must be set in the future, or not set.
          if (!empty($value) && $value <= time() - 600) {
              // We cannot set the date in the past. But we allow for 10 minutes of margin so that
              // a user can set the due date to "now" without risking to hit a validation error.
              return new lang_string('errorcannotsetduedateinthepast', 'core_competency');
          }
  
          return true;
      }
code: protected function validate_duedate($value) {
  
          // During update.
          if ($this->get('id')) {
              $before = $this->beforeupdate->get('duedate');
  
              // The value has not changed, then it's always OK.
              if ($before == $value) {
                  return true;
              }
          }
  
          // During create and update, the date must be set in the future, or not set.
          if (!empty($value) && $value <= time() - 600) {
              // We cannot set the date in the past. But we allow for 10 minutes of margin so that
              // a user can set the due date to "now" without risking to hit a validation error.
              return new lang_string('errorcannotsetduedateinthepast', 'core_competency');
          }
  
          return true;
      }
code_tokens: protected function validate_duedate ( $ value ) { // During update. if ( $ this -> get ( 'id' ) ) { $ before = $ this -> beforeupdate -> get ( 'duedate' ) ; // The value has not changed, then it's always OK. if ( $ before == $ value ) { return true ; } } // During create and update, the date must be set in the future, or not set. if ( ! empty ( $ value ) && $ value <= time ( ) - 600 ) { // We cannot set the date in the past. But we allow for 10 minutes of margin so that // a user can set the due date to "now" without risking to hit a validation error. return new lang_string ( 'errorcannotsetduedateinthepast' , 'core_competency' ) ; } return true ; }
docstring: Validate the due date.
  
  The due date can always be changed, but when it is it must be:
  - unset
  - set in the future.
  
  @param  int $value The due date.
  @return bool|lang_string
docstring_tokens: Validate the due date .