下面是我的mongo db文档,名为business
{
"_id": ObjectId("5be8e24a6600321ead321466"),
"business_id": "r89Re4FNgVWHgBfjCVZyVw",
"name": "Harlow",
"neighborhood": "Ville-Marie",
"address": "438 Place Jacques Cartier",
"city": "Montréal",
"state": "QC",
"postal_code": "H2Y 3B3",
"stars": 3.5,
"attributes": {
"Alcohol": "full_bar",
"BikeParking": "True",
"BusinessAcceptsCreditCards": "True",
"BusinessParking": "{'garage': False, 'street': False, 'validated': False, 'lot': False, 'valet': False}",
"Caters": "False",
"GoodForMeal": "{'dessert': False, 'latenight': False, 'lunch': False, 'dinner': False, 'breakfast': False, 'brunch': False}",
"RestaurantsDelivery": "False",
"RestaurantsGoodForGroups": "True",
},
"categories": "Nightlife, Bars, American (Traditional), Tapas/Small Plates, Poutineries, Supper Clubs, Restaurants, Tapas Bars",
}
问题:在上述名称为business的集合中,我需要查找所有提供午餐餐点的餐厅。 (需要检查属性-GoodForMeal-午餐)
它是嵌套数组。请建议我如何使用mongo db