【发布时间】：2020-08-21 17:39:20
【问题描述】：
我无法解决以下问题。我喜欢使用 NodeJS、Apollo 和 Mongoose 开发 GraphQL 服务器。
以下是数据库中的一些示例数据：
处方设置
{
"_id": "5ea99ae6fc48d036e083ec20",
"name": "Calcium",
"valueTo": -51,
"valueFrom": -75,
"treatmentDescription": "Deficiency",
"recommendation": "<p><strong>Calcium Deficiency</strong></p>\n<p><strong>S & S include: </strong></p>\n<p>Anxiety, Muscle cramps, and spasms, Bruising, Nervousness, Insomnia, Osteoporosis, Tooth decay</p>\n<p><strong>Calcium sources:</strong></p>\n<p>Milk, cheese and other dairy foods. Broccoli, cabbage and okra, Soya beans, Nuts, Flour, Fish</p>",
"isNormal": false
},
{
"_id": "5ea99ae6fc48d036e083ec21",
"name": "Calcium",
"valueTo": 100,
"valueFrom": 76,
"treatmentDescription": "High Bio-unavailable",
"recommendation": "<p><strong>Calcium Excess</strong></p>\n<p><strong>S & S include:</strong></p>\n<p>Arthritis, Gall stones, Constipation, Kidney stones, Depression, Mental, Fatigue.</p>\n<p><strong>Calcium sources:</strong></p>\n<p>Milk, cheese and other dairy foods.Broccoli, cabbage and okra, Soya beans, Nuts, Flour, Fish</p>",
"isNormal": false
},
{
"_id": "5ea99ae6fc48d036e083ec89",
"name": "Calcium",
"valueTo": -26,
"valueFrom": -50,
"treatmentDescription": "Border line deficiency",
"recommendation": "<p><strong>Calcium Borderline Deficiency</strong></p>\n<p><strong>S & S include: </strong></p>\n<p>Fatigue.Weak and brittle fingernails.Poor appetite. Muscle cramps, stiffness, and spasms.</p>\n<p><strong>Calcium sources:</strong></p>\n<p>Milk, cheese and other dairy foods. Broccoli, cabbage and okra, Soya beans.<br /> Nuts. Flour. Fish</p>",
"isNormal": false
},
{
"_id": "5ea99ae6fc48d036e083ec8a",
"name": "Calcium",
"valueTo": -76,
"valueFrom": -100,
"treatmentDescription": "insufficiency",
"recommendation": "<p><strong>Calcium Insufficiency</strong> <br /><strong>S & S include: </strong></p>\n<p>Anxiety, Muscle cramps and spasms, Bruising, Nervousness, Insomnia, Osteoporosis, Tooth decay</p>\n<p><strong>Calcium sources:</strong></p>\n<p>Milk, cheese and other dairy foods.Broccoli, cabbage and okra, Soya beans , Nuts , Flour , Fish</p>",
"isNormal": false
},
{
"_id": "5ea99ae6fc48d036e083ec22",
"name": "Magnesium",
"valueTo": 100,
"valueFrom": 76,
"treatmentDescription": "High Bio-unavailable",
"recommendation": "<p><strong>Magnesium Excess</strong></p>\n<p><strong>S & S include:</strong></p>\n<p>Confusion, Fatigue, Depression, Low blood pressure, Diarrhea, Muscle weakness</p>\n<p><strong>Magnesium sources:</strong></p>\n<p>Spinach, figs, avocado, banana and raspberries. Nuts and seeds. Legumes. Peas, broccoli, cabbage, green beans, artichokes, Seafood</p>",
"isNormal": false
},
{
"_id": "5ea99ae6fc48d036e083ec53",
"name": "Magnesium",
"valueTo": 25,
"valueFrom": -25,
"treatmentDescription": "Normal / Ideal zone",
"recommendation": "",
"isNormal": true
},
ParsedPdf
{
_id: "5eb2da3a4c6ccc6f65d7e621",
"mineralTestReport":
[
{
"name": "Calcium",
"value": "25",
"details": null
},
{
"name": "Magnesium",
"value": "-25",
"details": null
},
{
"name": "Phosphorus",
"value": "-71",
"details": null
},
],
"ratios":
[
{
"name": "Ca/Mg",
"value": "43",
"details": null
},
{
"name": "Ca/P",
"value": "100",
"details": null
},
{
"name": "K/Na",
"value": "-75",
"details": null
},
{
"name": "Cu/Zn",
"value": "-3",
"details": null
}
]}
我想做的是，从 ParsedPdf 上的每个数组中获取“name”和“value”，检查其中“value”位于 PrescriptionSetup 的“valueFrom”和“valueTo”之间，并更新“detail”与“description”和“recommendation”。
这就是我所做的。我创建了一个突变：
updateParsePdf: authenticated(async (parent, args, context, info) => {
try {
const pdf = await ParsePdf.findById(args._id);
const newReport = await updatedReport(pdf._doc);
const reportUpdated = await ParsePdf.findByIdAndUpdate(args._id, {
newReport,
}).exec();
return reportUpdated._doc;
} catch (error) {
console.log("error: ", error);
throw new AuthenticationError("Opps! Something went wrong.", error);
}
}),
updateReport方法
const updatedReport = async (pdf) => {
//pdf is the response from the ParsedPdf above
let updated = {};
try {
await Object.keys(pdf).forEach((key) => {
const field = pdf[key];
if (Array.isArray(field)) {
const newRep = field.map(async (f) => {
const pp = PrescriptionSetup.find({
name: f.name,
valueFrom: {
$lte: f.value,
},
valueTo: {
$gte: f.value,
},
})
.exec()
.then((p) => {
return {
...f,
details: {
description: p[0].treatmentDescription,
recommendation: p[0].recommendation,
isNormal: p[0].isNormal,
},
};
})
.catch((e) => {
console.log("Error finding setup: ", e);
});
return pp;
});
updated = { ...updated, [key]: [...newRep] };
}
});
const aa = { ...pdf, ...updated };
return aa;
} catch (error) {
console.log("Error...: ", error);
}
};
ParsedPdf 集合中有很多数组，其中包含很多项目。我认为由于大量的数据库查询，我无法使其工作。 解决此问题的最佳方法是什么。
感谢您的帮助
【问题讨论】：
-
您确定
value中的ParsedPdf是String吗？而valueFrom、valueTo是Numbers？什么不起作用是有错误还是没有按预期更新？ -
我观察到的您的问题主要与异步操作有关。你忘了把
await放在它应该出现的地方，你把它们放在不应该出现的地方 -
@TheeSritabtim 你能告诉我
await的正确位置吗？find查询正在运行。
标签： javascript node.js mongodb mongoose graphql