EntityList/EntityList.php
public function getFields()
    {
        $fields = array();
        foreach ($this->columns as $column) {
            $fields = array_merge($fields, $column->getFields());
        }

        return $fields;
    }
public function getFields()
    {
        $fields = array();
        foreach ($this->columns as $column) {
            $fields = array_merge($fields, $column->getFields());
        }

        return $fields;
    }
public function getFields ( ) { $ fields = array ( ) ; foreach ( $ this -> columns as $ column ) { $ fields = array_merge ( $ fields , $ column -> getFields ( ) ) ; } return $ fields ; }
Returns the fields used in the different cells of the list

@return string[]
Returns the fields used in the different cells of the list