英文:
How to reference a model that's not in project using mongoose
问题
I am building a microservice for Referral System for this existing app which has it's main backend already running. This Microservice will be an add-on to that. I built a Referral Model which is like this:
import mongoose from "mongoose";const RefSchema = new mongoose.Schema({referralID: {type: String,required: true},userID: {type: mongoose.Types.ObjectId,ref: 'Customer',required: true},userStatus: {type: String,required: true},linkedAccounts: {type: [mongoose.Types.ObjectId],ref: 'Customer',default: []}}, {timestamps: true});const RefModel = mongoose.model('referrals', RefSchema);export default RefModel;
Now, As you can see the ref is set to "Customer", which is exactly how it's modeled in the Main server. When I try to populate anything in the referral objects, I get an error from NestJS which says
Schema hasn't been registered for model "Customer". Use mongoose.model(name, schema)
If you have any idea what's gone wrong please let me know, also I looked in the compass, the collection name is "customers", so even by trying that I got the same error.
英文:
I am building a microservice for Referral System for this existing app which has it's main backend already running. This Microservice will be an add-on to that. I built a Referral Model which is like this :
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import mongoose from "mongoose";const RefSchema = new mongoose.Schema({referralID : {type : String,required : true},userID : {type : mongoose.Types.ObjectId,ref : 'Customer',required : true},userStatus : {type : String,required : true},linkedAccounts : {type : [mongoose.Types.ObjectId],ref : 'Customer',default : []}},{timestamps : true});const RefModel = mongoose.model('referrals', RefSchema);export default RefModel;
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Now, As you can see the ref is set to "Customer", which is exactly how it's modelled in the Main server. When I try to populate anything in the referral objects, I get an error from NestJS which says
Schema hasn't been registered for model "Customer".
Use mongoose.model(name, schema)
If you have any idea what's gone wrong please let me know, also I looked in the compass, the collection name is "customers", so even by trying that I got the same error.
答案1
得分: 0
尝试在定义Ref模式之前导入Customer模式，这将初始化所需的模型。
此外，你应该在模式声明中使用mongoose.Schema.Types.ObjectId：
import mongoose from "mongoose";import Customer from "path/to/customer-schema";const RefSchema = new mongoose.Schema({referralID: {type: String,required: true},userID: {type: mongoose.Schema.Types.ObjectId,ref: 'Customer',required: true},userStatus: {type: String,required: true},linkedAccounts: {type: [mongoose.Schema.Types.ObjectId],ref: 'Customer',default: []}}, {timestamps: true});
英文:
Try to import the Customer schema before defining the Ref schema, this will initialize the required model.
Also, you should use mongoose.Schema.Types.ObjectId in Schema declarations:
import mongoose from "mongoose";import Customer from "path/to/customer-schema";const RefSchema = new mongoose.Schema({referralID : {type : String,required : true},userID : {type : mongoose.Schema.Types.ObjectId,ref : 'Customer',required : true},userStatus : {type : String,required : true},linkedAccounts : {type : [mongoose.Schema.Types.ObjectId],ref : 'Customer',default : []}},{timestamps : true});</details>
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