| protected _processOperator ( $key, $value, $fieldMeta, $glue ) : mixed | ||
| return | mixed | Returns the operator expression string or `false` if no operator is applicable. |
protected function _processOperator($key, $value, $fieldMeta, $glue)
{
if (!is_string($key) || !is_array($value)) {
return false;
}
$operator = strtoupper(key($value));
if (!is_numeric($operator)) {
if (!isset($this->_operators[$operator])) {
throw new QueryException("Unsupported operator `{$operator}`.");
}
foreach ($value as $op => $val) {
$result[] = $this->_operator($key, array($op => $val), $fieldMeta);
}
return '(' . implode(' ' . $glue . ' ', $result) . ')';
}
return false;
}