original_string: public function getValueList()
      {
          // add model data rows in value list
          try {
              if ($this->model) {
                  $id = $this->model->id_field;
                  $title = $this->model->getElement($this->model->title_field);
  
                  $this->value_list = array();
                  foreach ($this->model as $row) {
                      $this->value_list[(string) $row[$id]] = $row[$title];
                  }
              }
  
              // prepend empty text message at the begining of value list if needed
              if ($this->empty_text && !isset($this->value_list[$this->empty_value])) {
                  $this->value_list = array($this->empty_value => $this->empty_text) + $this->value_list;
              }
  
              return $this->value_list;
          } catch (\atk4\core\Exception $e) {
              $e->addMoreInfo('values_for_field', $this->short_name);
              throw $e;
          }
      }
code: public function getValueList()
      {
          // add model data rows in value list
          try {
              if ($this->model) {
                  $id = $this->model->id_field;
                  $title = $this->model->getElement($this->model->title_field);
  
                  $this->value_list = array();
                  foreach ($this->model as $row) {
                      $this->value_list[(string) $row[$id]] = $row[$title];
                  }
              }
  
              // prepend empty text message at the begining of value list if needed
              if ($this->empty_text && !isset($this->value_list[$this->empty_value])) {
                  $this->value_list = array($this->empty_value => $this->empty_text) + $this->value_list;
              }
  
              return $this->value_list;
          } catch (\atk4\core\Exception $e) {
              $e->addMoreInfo('values_for_field', $this->short_name);
              throw $e;
          }
      }
code_tokens: public function getValueList ( ) { // add model data rows in value list try { if ( $ this -> model ) { $ id = $ this -> model -> id_field ; $ title = $ this -> model -> getElement ( $ this -> model -> title_field ) ; $ this -> value_list = array ( ) ; foreach ( $ this -> model as $ row ) { $ this -> value_list [ ( string ) $ row [ $ id ] ] = $ row [ $ title ] ; } } // prepend empty text message at the begining of value list if needed if ( $ this -> empty_text && ! isset ( $ this -> value_list [ $ this -> empty_value ] ) ) { $ this -> value_list = array ( $ this -> empty_value => $ this -> empty_text ) + $ this -> value_list ; } return $ this -> value_list ; } catch ( \ atk4 \ core \ Exception $ e ) { $ e -> addMoreInfo ( 'values_for_field' , $ this -> short_name ) ; throw $ e ; } }
docstring: Return value list.
  
  @return array
docstring_tokens: Return value list .