protected function getCustomMappingTypes()
    {
        $mappingTypes = (array) $this->getOption('custom_mapping_types');

        return array_filter(
            $mappingTypes,
            function ($name) {
                return is_string($name);
            },
            ARRAY_FILTER_USE_KEY
        );
    }
protected function getCustomMappingTypes()
    {
        $mappingTypes = (array) $this->getOption('custom_mapping_types');

        return array_filter(
            $mappingTypes,
            function ($name) {
                return is_string($name);
            },
            ARRAY_FILTER_USE_KEY
        );
    }
protected function getCustomMappingTypes ( ) { $ mappingTypes = ( array ) $ this -> getOption ( 'custom_mapping_types' ) ; return array_filter ( $ mappingTypes , function ( $ name ) { return is_string ( $ name ) ; } , ARRAY_FILTER_USE_KEY ) ; }
Retrieve custom DBAL mapping types.

@return array
Retrieve custom DBAL mapping types .