返回单个对象
[英]Return single object
问题描述
I've been trying to do this several days ago.
几天前我一直在尝试这样做。
I want to make a query that gets all the businesses that are registered in one city, after that for each Business I'd like to get all products in business and finally store it onto a new object and send it as a response to front end.我想进行一个查询，获取在一个城市注册的所有企业，然后对于每个企业，我想获取所有业务产品，最后将其存储到一个新对象上，并将其作为对前端的响应发送.
This is the code I'm using:这是我正在使用的代码：
router.get('/app/list-all-products-city', async(req, res, next) => {
var AddProduct;
var Result;
console.log(req.body);
try {
_business = await Business.find({
businessCity: 'Departamento de Cochabamba'
});
} catch (e) {
console.log(e);
res.status(500).send('hubo un error, algo malio sal');
}
try {
for (i in _business) {
let Products = await Product.find({
productInBusiness: _business[i]['_id']
});
for (index in Products) {
if (Products.hasOwnProperty(index)) {
console.log(Products[index].productName);
AddProduct = {
AddProduct,
...Products
};
}
}
}
res.json(AddProduct);
} catch (e) {
console.log(e);
res.status(500).send('hubo un error, algo malio sal');
}
});
but unfortunately I'm getting a nested object which is this one:但不幸的是，我得到了一个嵌套对象，它是这样的：
{
"0": {
"productStatus": 1,
"productTags": "2020-08-03 23:14",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-03 23:14",
"_id": "5f2a183a8360400063020c8f",
"productName": "Util",
"productInBusiness": "5f2a15c38360400063020c8d",
"productCategory": "5f1bad9ebbf8a71eb730baf7",
"productSubCategory": "5f2a16eb8360400063020c8e",
"productDetails": "Limpieza de superficies de cocina ",
"productUnitSale": "Botella",
"productSalePrice": 25,
"productStock": 50,
"ProductImage001": "A1LmqJaHtXC6KETKxehjf.jpg",
"ProductImage002": "gYsYqHMvP79eBcFUjeYqxz.jpg",
"ProductImage003": "trpgfZPfX41rbJh5z7H1nr.jpg",
"__v": 0
},
"AddProduct": {
"0": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f272901569c9700523bbcca",
"productName": "Zapatón de lana",
"productInBusiness": "5f2723f8569c9700523bbcc6",
"productCategory": "5f1bb0f4bbf8a71eb730baf9",
"productSubCategory": "5f26e548569c9700523bbcbe",
"productDetails": "Zapatones de lana tejidos a crochet, con suela antideslizante.",
"productUnitSale": "Par",
"productSalePrice": 40,
"productStock": 3,
"ProductImage001": "ufyagH39yatG1ypQDNTPG8.jpg",
"ProductImage002": "dRCyVqRFsPaYssUBp5Cugo.jpg",
"ProductImage003": "erMXW5n1epo11CEyASjCM.jpg",
"__v": 0
},
"AddProduct": {
"0": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f2716f1569c9700523bbcc4",
"productName": "Latitude 3400 Business Laptop",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Dell Latitude 3000 3400 14\" Notebook - 1920 x 1080 - Core i5 i5-8265U - 8 GB RAM - 256 GB SSD - Windows 10 Pro 64-bit - Intel UHD Graphics 620 - English (US) Keyboard - Bluetooth",
"productUnitSale": "Unidad",
"productSalePrice": 10455,
"productStock": 3,
"ProductImage001": "xAW2zhRVrPskVCxHf23L3X.jpg",
"ProductImage002": "c3nZcJiaTtNUyV5DdMymtd.jpg",
"ProductImage003": "fn5Qi86mexerHosVwy9c9Z.jpg",
"__v": 0
},
"1": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f271ace569c9700523bbcc5",
"productName": "Apple MacBook Pro (13 pulgadas)",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Tenth-generation quad-core Intel Core i5 processor Brilliant Retina display with True Tone technology Backlit Magic Keyboard Touch Bar and Touch ID Intel Iris Plus Graphics Ultrafast SSD Four Thunderbolt 3 (USB-C) ports",
"productUnitSale": "Unidad",
"productSalePrice": 135940,
"productStock": 5,
"ProductImage001": "wn2d18DCSbzRkxG4ZZaBY2.jpg",
"ProductImage002": "wxtujJ3YLxbY2UjnXzujP6.jpg",
"ProductImage003": "bJS75Zzi4HSskff9i17Z4D.jpg",
"__v": 0
},
"2": {
"productStatus": 1,
"productTags": "2020-08-03 23:14",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-03 23:14",
"_id": "5f2a2d618360400063020c90",
"productName": "2020 HP Stream 11.6 pulgadas portátil, Intel Atom x5 E8000 hasta 2.0 GHz",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "【Office 365 Included】One year of Microsoft Office 365 included ($70 Value). 11.6 inch diagonal HD SVA anti-glare WLED-backlit (1366 x 768), Intel HD Graphics 【Quad-Core Atom x5-E8000】Intel Atom x5-E8000 (1.04 GHz base frequency, up to 2.0 GHz, 2 MB cache, 4 cores), 2-cell, 37.69 Wh Li-ion, up to 12 hours battery life mixed-use 【High Speed】RAM is upgraded to 4GB DDR3L memory for multitasking Adequate high-bandwidth RAM to smoothly run multiple applications and browser tabs all at once 【Enormous Space】Hard Drive is upgraded to 64GB eMMC provides massive storage space for huge files, so that you can store important digital data and work your way through it with ease. Enhance the overall performance of the laptop for business, student, daily usage 【Authorized NexiGo Bundle】 Bundled with NexiGo 32GB MicroSD Card, offers cost-effective portable solution instantly boosting available storage space for your laptop, Authorized Sellers ONLY. 2 x USB 3.1 Gen 1, 1 x USB 3.1 Type-C, 1 x HDMI 1.4, 1 x headphone/microphone combo",
"productUnitSale": "Unidad",
"productSalePrice": 2500,
"productStock": 10,
"ProductImage001": "nduaWJqGGVvB9jHMTh3sna.jpg",
"ProductImage002": "ih3XJ8NXuqiaBJonGoKcDP.jpg",
"ProductImage003": "vuY1GtAP4pmcduD7YwZpCb.jpg",
"__v": 0
},
"AddProduct": {
"0": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f2716f1569c9700523bbcc4",
"productName": "Latitude 3400 Business Laptop",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Dell Latitude 3000 3400 14\" Notebook - 1920 x 1080 - Core i5 i5-8265U - 8 GB RAM - 256 GB SSD - Windows 10 Pro 64-bit - Intel UHD Graphics 620 - English (US) Keyboard - Bluetooth",
"productUnitSale": "Unidad",
"productSalePrice": 10455,
"productStock": 3,
"ProductImage001": "xAW2zhRVrPskVCxHf23L3X.jpg",
"ProductImage002": "c3nZcJiaTtNUyV5DdMymtd.jpg",
"ProductImage003": "fn5Qi86mexerHosVwy9c9Z.jpg",
"__v": 0
},
"1": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f271ace569c9700523bbcc5",
"productName": "Apple MacBook Pro (13 pulgadas)",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Tenth-generation quad-core Intel Core i5 processor Brilliant Retina display with True Tone technology Backlit Magic Keyboard Touch Bar and Touch ID Intel Iris Plus Graphics Ultrafast SSD Four Thunderbolt 3 (USB-C) ports",
"productUnitSale": "Unidad",
"productSalePrice": 135940,
"productStock": 5,
"ProductImage001": "wn2d18DCSbzRkxG4ZZaBY2.jpg",
"ProductImage002": "wxtujJ3YLxbY2UjnXzujP6.jpg",
"ProductImage003": "bJS75Zzi4HSskff9i17Z4D.jpg",
"__v": 0
},
"2": {
"productStatus": 1,
"productTags": "2020-08-03 23:14",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-03 23:14",
"_id": "5f2a2d618360400063020c90",
"productName": "2020 HP Stream 11.6 pulgadas portátil, Intel Atom x5 E8000 hasta 2.0 GHz",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "【Office 365 Included】One year of Microsoft Office 365 included ($70 Value). 11.6 inch diagonal HD SVA anti-glare WLED-backlit (1366 x 768), Intel HD Graphics 【Quad-Core Atom x5-E8000】Intel Atom x5-E8000 (1.04 GHz base frequency, up to 2.0 GHz, 2 MB cache, 4 cores), 2-cell, 37.69 Wh Li-ion, up to 12 hours battery life mixed-use 【High Speed】RAM is upgraded to 4GB DDR3L memory for multitasking Adequate high-bandwidth RAM to smoothly run multiple applications and browser tabs all at once 【Enormous Space】Hard Drive is upgraded to 64GB eMMC provides massive storage space for huge files, so that you can store important digital data and work your way through it with ease. Enhance the overall performance of the laptop for business, student, daily usage 【Authorized NexiGo Bundle】 Bundled with NexiGo 32GB MicroSD Card, offers cost-effective portable solution instantly boosting available storage space for your laptop, Authorized Sellers ONLY. 2 x USB 3.1 Gen 1, 1 x USB 3.1 Type-C, 1 x HDMI 1.4, 1 x headphone/microphone combo",
"productUnitSale": "Unidad",
"productSalePrice": 2500,
"productStock": 10,
"ProductImage001": "nduaWJqGGVvB9jHMTh3sna.jpg",
"ProductImage002": "ih3XJ8NXuqiaBJonGoKcDP.jpg",
"ProductImage003": "vuY1GtAP4pmcduD7YwZpCb.jpg",
"__v": 0
},
"AddProduct": {
"0": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f2716f1569c9700523bbcc4",
"productName": "Latitude 3400 Business Laptop",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Dell Latitude 3000 3400 14\" Notebook - 1920 x 1080 - Core i5 i5-8265U - 8 GB RAM - 256 GB SSD - Windows 10 Pro 64-bit - Intel UHD Graphics 620 - English (US) Keyboard - Bluetooth",
"productUnitSale": "Unidad",
"productSalePrice": 10455,
"productStock": 3,
"ProductImage001": "xAW2zhRVrPskVCxHf23L3X.jpg",
"ProductImage002": "c3nZcJiaTtNUyV5DdMymtd.jpg",
"ProductImage003": "fn5Qi86mexerHosVwy9c9Z.jpg",
"__v": 0
},
"1": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f271ace569c9700523bbcc5",
"productName": "Apple MacBook Pro (13 pulgadas)",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Tenth-generation quad-core Intel Core i5 processor Brilliant Retina display with True Tone technology Backlit Magic Keyboard Touch Bar and Touch ID Intel Iris Plus Graphics Ultrafast SSD Four Thunderbolt 3 (USB-C) ports",
"productUnitSale": "Unidad",
"productSalePrice": 135940,
"productStock": 5,
"ProductImage001": "wn2d18DCSbzRkxG4ZZaBY2.jpg",
"ProductImage002": "wxtujJ3YLxbY2UjnXzujP6.jpg",
"ProductImage003": "bJS75Zzi4HSskff9i17Z4D.jpg",
"__v": 0
},
"2": {
"productStatus": 1,
"productTags": "2020-08-03 23:14",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-03 23:14",
"_id": "5f2a2d618360400063020c90",
"productName": "2020 HP Stream 11.6 pulgadas portátil, Intel Atom x5 E8000 hasta 2.0 GHz",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "【Office 365 Included】One year of Microsoft Office 365 included ($70 Value). 11.6 inch diagonal HD SVA anti-glare WLED-backlit (1366 x 768), Intel HD Graphics 【Quad-Core Atom x5-E8000】Intel Atom x5-E8000 (1.04 GHz base frequency, up to 2.0 GHz, 2 MB cache, 4 cores), 2-cell, 37.69 Wh Li-ion, up to 12 hours battery life mixed-use 【High Speed】RAM is upgraded to 4GB DDR3L memory for multitasking Adequate high-bandwidth RAM to smoothly run multiple applications and browser tabs all at once 【Enormous Space】Hard Drive is upgraded to 64GB eMMC provides massive storage space for huge files, so that you can store important digital data and work your way through it with ease. Enhance the overall performance of the laptop for business, student, daily usage 【Authorized NexiGo Bundle】 Bundled with NexiGo 32GB MicroSD Card, offers cost-effective portable solution instantly boosting available storage space for your laptop, Authorized Sellers ONLY. 2 x USB 3.1 Gen 1, 1 x USB 3.1 Type-C, 1 x HDMI 1.4, 1 x headphone/microphone combo",
"productUnitSale": "Unidad",
"productSalePrice": 2500,
"productStock": 10,
"ProductImage001": "nduaWJqGGVvB9jHMTh3sna.jpg",
"ProductImage002": "ih3XJ8NXuqiaBJonGoKcDP.jpg",
"ProductImage003": "vuY1GtAP4pmcduD7YwZpCb.jpg",
"__v": 0
}
}
}
}
}
}
2 个解决方案
解决方案1
1 已采纳 2020-09-24 05:37:45
Error: Here adding same data again and again creating nested object.错误：这里一次又一次地添加相同的数据创建嵌套对象。
AddProduct = {
AddProduct,
...Products
};
example :例子 ：
var a = {"ch":"a"}
var b = { "test": "a" }
a = {
a,
...b
}
a = {
a,
...b
}
Instead add the data in array and send it.而是将数据添加到数组中并发送。
for (index in Products) {
if (Products.hasOwnProperty(index)) {
console.log(Products[index].productName);
AddProduct.push(Products)
};
}
}
}
output :
[ {
"0": {
"productStatus": 1,
"productTags": "2020-08-03 23:14",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-03 23:14",
"_id": "5f2a183a8360400063020c8f",
"productName": "Util",
"productInBusiness": "5f2a15c38360400063020c8d",
"productCategory": "5f1bad9ebbf8a71eb730baf7",
"productSubCategory": "5f2a16eb8360400063020c8e",
"productDetails": "Limpieza de superficies de cocina ",
"productUnitSale": "Botella",
"productSalePrice": 25,
"productStock": 50,
"ProductImage001": "A1LmqJaHtXC6KETKxehjf.jpg",
"ProductImage002": "gYsYqHMvP79eBcFUjeYqxz.jpg",
"ProductImage003": "trpgfZPfX41rbJh5z7H1nr.jpg",
"__v": 0
},
"1": {
"productStatus": 1,
"productTags": "2020-08-02 14:16",
"productPerCentPromo": 0,
"productCreationDate": "2020-08-02 14:16",
"_id": "5f271ace569c9700523bbcc5",
"productName": "Apple MacBook Pro (13 pulgadas)",
"productInBusiness": "5f2715c9569c9700523bbcc3",
"productCategory": "5f1bb62abbf8a71eb730bafb",
"productSubCategory": "5f1c861e72a9f59686f5fd68",
"productDetails": "Tenth-generation quad-core Intel Core i5 processor Brilliant Retina display with True Tone technology Backlit Magic Keyboard Touch Bar and Touch ID Intel Iris Plus Graphics Ultrafast SSD Four Thunderbolt 3 (USB-C) ports",
"productUnitSale": "Unidad",
"productSalePrice": 135940,
"productStock": 5,
"ProductImage001": "wn2d18DCSbzRkxG4ZZaBY2.jpg",
"ProductImage002": "wxtujJ3YLxbY2UjnXzujP6.jpg",
"ProductImage003": "bJS75Zzi4HSskff9i17Z4D.jpg",
"__v": 0
},
]
解决方案2
0 2020-09-24 06:00:58
I guess you should change我想你应该改变
console.log(Products[index].productName);
AddProduct = {
AddProduct,
...Products
};
to到
console.log(Products[index].productName);
AddProduct = {
...AddProduct,
...Products
};
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