Lazy loading doesn't get the field type when generating sql

 private function getType($field, $value)
    {

        switch (true) {
           //here we have original code
            default:

            	$type = null;
               // my fix starts here
            	$fieldParts = explode('.', $field);
            	if (count($fieldParts > 1)) {
	            	foreach ($this->_class->associationMappings as $mapping) {
						if (isset($mapping['joinColumnFieldNames'][$fieldParts[1]])) {
							$targetClass  = $this->_em->getClassMetadata($mapping['targetEntity']);

							if (isset($targetClass->fieldNames[$fieldParts[1]])) {
								$type = $targetClass->fieldMappings[$targetClass->fieldNames[$fieldParts[1]]]['type'];
							}

							break;
						}
	            	}
            	}
//my fix end here
        }

       //here we have original code

        return $type;
    }