protected function getIsAttributeValueUsed($attribute_code, $value, $storeId, $isSelect = false)
{
$attributeModel = $this->shipperDataHelper->getAttribute($attribute_code, $storeId);
$select = $this->connection->select()->distinct(true)->from($attributeModel->getBackend()->getTable(), ['value'])->where('attribute_id=?', $attributeModel->getId())->where('value!=?', '');
$usedAttributeValues = $this->connection->fetchCol($select);
if ($isSelect) {
//account for multiselect values
$separated = array();
foreach ($usedAttributeValues as $key => $aValue) {
if (strstr($aValue, ',')) {
$values = explode(',', $aValue);
$separated = array_merge($separated, $values);
unset($usedAttributeValues[$key]);
}
}
$usedAttributeValues = array_merge($usedAttributeValues, $separated);
}
return in_array($value, $usedAttributeValues);
}
