public function getIndexBodyCells(array $fields = null)
    {
        $rows = '';
        $stub = $this->getStubContent('index.body.cell.blade', $this->template);
        foreach ($this->getFieldsToDisplay($fields) as $field) {
            if ($field->isOnIndexView) {
                $rows .= $this->getIndexBodyCell($stub, $field) . PHP_EOL;
            }
        }

        return $rows;
    }