我想查询这个Mongodb对象,但似乎无法获得我需要的某些数据点。我该如何说出imagePath数据?数据保存在一个称为订单的表格中。我尝试过点符号,即order.cart [0],但无法弄清楚如何在数组中更深入。如何查询这个Mongodb对象?
{
"_id": ObjectId("5976b6b11306910658b1ff57"),
"address": "6210 place",
"name": "frank",
"paymentId": "ch_1AjJRVDfJryYeuMpJC80cp5k",
"email": "[email protected]",
"time": ISODate("2017-07-25T03:10:41.522Z"),
"cart": [
{
"items": {
"5975228a215c0f074b64f58e": {
"item": {
"_id": "5975228a215c0f074b64f58e",
"title": "Bracelet 3",
"imagePath": "https://www.costco.com/wcsstore/CostcoUSBCCatalogAssetStore/category-tiles/pearl-bracelets.jpg",
"description": "This is bracelet 3",
"price": 12,
"__v": 0
},
"qty": 1,
"price": 12
},
"59752242215c0f074b64f58c": {
"item": {
"_id": "59752242215c0f074b64f58c",
"title": "Bracelet 1",
"imagePath": "https://img0.etsystatic.com/160/0/12655872/il_340x270.1187191078_i2ha.jpg",
"description": "This is bracelet 1",
"price": 10,
"__v": 0
},
"qty": 2,
"price": 20
},
"5975226a215c0f074b64f58d": {
"item": {
"_id": "5975226a215c0f074b64f58d",
"title": "Bracelet 2",
"imagePath": "http://media.tiffany.com/is/image/Tiffany/EcomBrowseM/paloma-picasso-knot-bead-bracelet-34946183_963148_ED.jpg?op_usm=1.00,1.00,6.00&defaultImage=NoImageAvailable&&",
"description": "This is bracelet 2",
"price": 5,
"__v": 0
},
"qty": 1,
"price": 5
}
},
"totalQty": 4,
"totalPrice": 37
}
],
"__v": 0
}
你可以显示你迄今为止尝试过的代码吗?你想做什么?我正在猜测通过购物车[0] .items循环? – bluetoft
实际的“点符号”是“cart.0”,用于向MongoDB发出“查询”,这与JavaScript语法不同。真的不清楚你想要做什么“查询”,因为你实际上没有说出来。你的内容“'项目”'是一个问题。您已经使用“命名键”而不是制作数组的“项目”成员。实际上,它看起来像''cart''已经在** error **中做成了一个单一的元素数组,实际上你希望这个数组是“项目”。或者至少这是结构“应该”取而代之的。 –