让 linter 将类型 "Ref <T>" 识别为 "T" 而不是 "ObjectId"

Question

当我 class 如下所示时：

export class Application{
    @prop({ required: [true, 'app name is required'], unique: true })
    name!: string;

    @prop({ required: [true, 'component is required'], ref: Component})
    component!: Ref<Component>;
}

并且假设 'Component' class 有一个 'name' 属性，我不能这样做：

let app: Application
const appName = 'appTest';
app = await (await this.findOne({ name: appName })).populate('component').execPopulate();
console.log(app.component.name);

因为它给我以下错误：

Property 'name' does not exist on type 'Ref<Component, ObjectId>'.
Property 'name' does not exist on type 'ObjectId'

有没有办法让 linter 将类型视为 T（来自 Ref<T>）而不是 ObjectId？

Answer 1

目前，对我来说效果很好的是使用类型保护，特别是来自 Typegoose 的 isDocument and isDocumentArray。应该是这样的：

let app: Application
const appName = 'appTest';
app = await (await this.findOne({ name: appName })).populate('component').execPopulate();
if (isDocument(app.component)) {
console.log(app.component.name);
}

让 linter 将类型 "Ref <T>" 识别为 "T" 而不是 "ObjectId"

Have the linter recognize the type "Ref <T>" as "T" instead of "ObjectId"

node.js

typescript

mongoose-populate

nestjs

typegoose