[英]Mongoose model become undefined when exported
I export the model DemandeTransports from this file:我从此文件导出 model DemandeTransports:
//@/components/database/model/Schema.js
import { Schema } from "mongoose";
import mongoose from "mongoose";
const userSchema = new Schema({
email: { type: String, index: true, unique: true, required: true },
password: { type: String, required: true },
role: { type: String, required: true },
infos: Map,
});
const Users = mongoose.models?.user || new mongoose.model("user", userSchema);
const demandeTransportSchema = new Schema({
date: { type: Date, required: true },
user: { type: Object, required: true },
values: { type: Object, required: true },
});
const DemandeTransports =
mongoose.models?.demandeTransport ||
new mongoose.model("demandeTransport", demandeTransportSchema);
console.log(DemandeTransports.findOne);
export { Users, DemandeTransports };
Which log (on server): [Function: findOne]哪个日志(在服务器上):[功能:findOne]
But when I try to import the model in this file:但是当我尝试在此文件中导入 model 时:
//@/lib/getAllDemandesFromUser.js
import connectMongo from "@/components/database/conn";
import { DemandeTransports } from "@/components/database/model/Schema";
export default function getAllDemandesFromUser(email) {
console.log("JSON.stringify(DemandeTransports)");
console.log(JSON.stringify(DemandeTransports));
connectMongo().catch((error) =>
res.status(500).json({
error: "La connection à la bdd mongo a échoué avec l'erreur : " + error,
})
);
const result = DemandeTransports.findOne({ "user.email": email });
return result;
}
I get TypeError: components_database_model_Schema__WEBPACK_IMPORTED_MODULE_1 _.DemandeTransports.findOne is not a function我收到 TypeError: components_database_model_Schema__WEBPACK_IMPORTED_MODULE_1 _.DemandeTransports.findOne is not a function
And DemandeTransports is logged as undefined, and I can't figure out why. DemandeTransports 被记录为未定义,我不明白为什么。
I just understood: My basis error was that I tried to connect to the mongodb while being in client side, which is impossible.我刚刚明白:我的基本错误是我在客户端尝试连接到 mongodb,这是不可能的。 I transfered all my call to the db in a getServerSideProps function:我将所有呼叫转移到 getServerSideProps function 中的数据库:
export async function getServerSideProps(context) {
const session = await unstable_getServerSession(
context.req,
context.res,
authOptions
);
// Fetch data from external API
connectMongo().catch((error) =>
console.log("Erreur lors de la connection à la bdd : " + error)
);
const result = await DemandeTransports.findOne({
"user.email": session.user.email,
});
const result2 = result.toObject();
console.log(result.toObject());
// Pass data to the page via props
return { props: { result2 } };
}
And now it works perfectly fine.现在它工作得很好。
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