public function getDefaultOperatorInputByType()
{
if (null === $this->_defaultOperatorInputByType) {
$this->_defaultOperatorInputByType = ['string' => ['{}', '!{}'], 'numeric' => ['==', '!=', '>=', '>', '<=', '<'], 'date' => ['==', '>=', '>', '<=', '<'], 'select' => ['==', '!='], 'boolean' => ['==', '!='], 'multiselect' => ['()', '!()'], 'grid' => ['()', '!()'], 'category' => ['()', '!()']];
$this->_arrayInputTypes = ['multiselect', 'grid', 'category'];
}
return $this->_defaultOperatorInputByType;
}