/**
* @param string $itemName The property name
* @param SearchQueryExpr $value The sub query
* @return string
*/
protected function processSubQueryValue($itemName, SearchQueryExpr $value)
{
if ($value->isEmpty()) {
return '';
}
$result = $this->processExpr($value, $itemName);
if ($value->isComplex()) {
$result = sprintf('(%s)', $result);
}
return $result;
}
/**
* {@inheritdoc}
*/
protected function processSubQueryValue($itemName, SearchQueryExpr $value)
{
if ($value->isEmpty()) {
return '';
}
if ($itemName !== null) {
$keyword = $this->getKeyword($itemName);
if (!$keyword) {
throw new \InvalidArgumentException(sprintf('Unsupported property "%s".', $itemName));
}
$result = sprintf('%s%s', $keyword, $this->getNameValueDelimiter());
} else {
$result = '';
}
$expr = $this->processExpr($value);
$result .= $value->isComplex() ? sprintf('(%s)', $expr) : $expr;
return $result;
}
/**
* Checks if this query has no any expressions.
*
* @return bool
*/
public function isEmpty()
{
return $this->expr->isEmpty();
}
