oday
10/19/2018, 8:23 AMoverride fun fetchAndSaveFavorites(): Observable<List<FavoriteCars>> =
        carsService.getFavorites().map { response ->
            val favorites = response.map {
                FavoriteCars(listing_id = it.id)
            }
            database.favoritesDao().wipeTable()
            database.favoritesDao().insert(favorites)
            favorites
        }