original_string: public function get_coefstring() {
          $parent_category = $this->load_parent_category();
          if ($this->is_category_item()) {
              $parent_category = $parent_category->load_parent_category();
          }
  
          if ($parent_category->is_aggregationcoef_used()) {
              return $parent_category->get_coefstring();
          } else {
              return false;
          }
      }
code: public function get_coefstring() {
          $parent_category = $this->load_parent_category();
          if ($this->is_category_item()) {
              $parent_category = $parent_category->load_parent_category();
          }
  
          if ($parent_category->is_aggregationcoef_used()) {
              return $parent_category->get_coefstring();
          } else {
              return false;
          }
      }
code_tokens: public function get_coefstring ( ) { $ parent_category = $ this -> load_parent_category ( ) ; if ( $ this -> is_category_item ( ) ) { $ parent_category = $ parent_category -> load_parent_category ( ) ; } if ( $ parent_category -> is_aggregationcoef_used ( ) ) { return $ parent_category -> get_coefstring ( ) ; } else { return false ; } }
docstring: Queries parent categories recursively to find the aggregationcoef type that applies to this grade item.
  
  @return string|false Returns the coefficient string of false is no coefficient is being used
docstring_tokens: Queries parent categories recursively to find the aggregationcoef type that applies to this grade item .