protected function getFieldFormat()
{
$format = $this->localeFormat->getPriceFormat();
$attribute = $this->getFilter()->getAttributeModel();
$format['pattern'] = (string) $attribute->getDisplayPattern();
$format['precision'] = (int) $attribute->getDisplayPrecision();
$format['requiredPrecision'] = (int) $attribute->getDisplayPrecision();
$format['integerRequired'] = (int) $attribute->getDisplayPrecision() > 0;
return $format;
}