【发布时间】：2021-04-23 22:08:15
【问题描述】：
我正在使用 graphql 和 mongodb 将某个对象添加到数据库中。
我正在使用相同的技术向数据库添加一个对象，但是这个特定对象包含一个嵌套对象。
- package.json
{
"name": "workplaces",
"version": "1.0.0",
"main": "app.js",
"author": "younes",
"license": "MIT",
"scripts": {
"start": "nodemon app02.js"
},
"dependencies": {
"bcryptjs": "^2.4.3",
"body-parser": "^1.19.0",
"express": "^4.17.1",
"express-graphql": "^0.12.0",
"graphql": "^15.4.0",
"mongoose": "^5.11.12"
},
"devDependencies": {
"nodemon": "^2.0.7"
}
}
- 模型位置 购买和使用数据的 mongodb 模型
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const locationSchema = new Schema(
{
locationName:[
{
lang:{
type: String,
enum:["en","fr"],
required: true
},
text:{
type: String,
required: true
}
}
],
locationType:{
type:String,
enum:["clinic","laboratory","radiology"],
required: true
},
imageUrl:{
type:[String]
},
locationMap: {
type: {
type: String,
enum: ['Point'],
required: true
},
coordinates: {
type: [Number],
required: true
},
},
owner: {
type: Schema.Types.ObjectId,
ref: 'User'
}
},
{
timestamps: true,
}
);
module.exports = mongoose.model('location', locationSchema);
- graphql
const express=require('express');
const graphqlHTTP=require('express-graphql').graphqlHTTP;
const {buildSchema}=require('graphql');
const mongoose=require('mongoose');
const bcrypt=require('bcryptjs');
const User=require('./models/user');
const Location=require('./models/location');
const app=express();
app.use(express.json());
app.use('/graphql',
graphqlHTTP({
schema:buildSchema(`
type LocationName{
lang:String!
text:String!
}
input InputLocationName{
lang:String!
text:String!
}
type LocationMap{
type:String!
coordinates:[Float!]
}
input InputLocationMap{
type:String!
coordinates:[Float!]
}
type Location{
_id:ID!
locationName:[LocationName!]
locationType:String!
imageUrl:[String!]
locationMap:LocationMap!
owner:User!
}
input InputLocation{
locationName:[LocationName!]!
locationType:String!
imageUrl:[String!]
locationMap:LocationMap!
}
type User{
_id:ID!
email:String!
password:String
}
input InputUser{
email:String!
password:String!
}
type RootQuery{
users:[User!]!
locations: [Location!]!
}
type RootMutation{
createUser(inputUser:InputUser): User
createLocation(inputLocation:InputLocation): Location
}
schema{
query: RootQuery
mutation: RootMutation
}
`),
rootValue:{
users:()=>{
return User.find()
.then(users=>{
console.log(users)
return users
})
.catch(err=>{
throw err;
})
},
createLocation:(args)=>{
return User.findOne({_id:"6002cff9d32ceb25ac9e9c7e"})
.then(user=>{
if (!user) {
throw new Error('User dont found.')
}
else{
const location=new Location(
{
locationName:args.inputLocation.LocationName ,
locationType:args.inputLocation.locationType,
imageUrl:args.inputLocation.imageUrl,
locationMap:args.inputLocation.LocationMap,
owner:"6002cff9d32ceb25ac9e9c7e"
}
);
return location
.save()
.then(result=>{
console.log(result)
return result
})
.catch((err)=>{
throw err;
})
}
})
},
createUser:(args)=>{
return User.findOne({email:args.userInput.email})
.then(user=>{
if (user) {
throw new Error('User exists already.')
}
else{
return bcrypt
.hash(args.userInput.password,12)
.then(hashPassword=>{
const user=new User(
{
email:args.userInput.email,
password:hashPassword
}
);
return user
.save()
.then(result=>{
return { ...result._doc,password:null}
})
.catch((err)=>{throw err;})
})
.catch((err)=>{
throw err;
})
}
})
},
},
graphiql:true
})
);
uri=process.env.URI
mongoose.connect(uri,
{useNewUrlParser:true
,useCreateIndex:true
, useUnifiedTopology:true
})
.then(()=>{
console.log("database connected")
app.listen(5000);
})
.catch((err)=>{
console.log(err)
})
- 这是我当前的 graphQL 查询：
mutation{
createLocation(inputLocation:{
locationName:[{lang:"en",text:"sad",isShow:true}],
locationType:"clinic",
imageUrl:["/images/01.png"],
locationMap:{
type:"Point",
coordinates:[2342342,2342345]
}
})
{
_id
}
}
错误
{
"errors": [
{
"message": "The type of InputLocation.locationName must be Input Type but got: [LocationName!]!.",
"locations": [
{
"line": 33,
"column": 30
}
]
},
{
"message": "The type of InputLocation.locationMap must be Input Type but got: LocationMap!.",
"locations": [
{
"line": 37,
"column": 29
}
]
}
]
}
请帮忙，谢谢！
【问题讨论】：
-
input InputLocation{中的任何复杂类型都应该是输入类型
标签： node.js reactjs mongodb mongoose graphql