CCrmExternalChannelImportAgent::sanitizeFields

protected function sanitizeFields(&$fields)
{
	/** @var \CCrmCompanyRestProxy|\CCrmContactRestProxy $entity */
	$entity = $this->getEntity();

	$originFields = $fields;
	$fieldsInfo = $entity->getFieldsInfo();
	if(is_array($fieldsInfo) && count($fieldsInfo)>0)
	{
		$sanitize = array();
		foreach($fieldsInfo as $fieldName => $fieldEntity)
		{
			$sanitize[$fieldName] = is_set($fields, $fieldName) ? $fields[$fieldName]:'';
		}

		$custom =  array_diff_assoc($originFields, $sanitize);
		if(!empty($custom))
		{
			$sanitize[$this->getCustomFieldsFieldName()] = $custom;
		}

		$fields[$this->getCustomFieldsFieldName()] = $sanitize[$this->getCustomFieldsFieldName()];
	}
}