Property 'save' does not exist on type 'CardType'-CodePudding

In a function I have, I'm doing some stuff with the properties of an object of type CardType. Then, I want to be able to save those changes into my MongoDB database using the document.save() function. However, I have my code like this:

import { Types } from 'mongoose';
import Card from '../models/Card';

static async updatePriceForCardByID(cardID: Types.ObjectId) {
    const card = await Card.findById(cardID).exec();
    return updatePriceForCard(card!);
}

static async updatePriceForCard(card: CardType) {
   // This function needs some properties of 'card', it only updates the price of the card
   const newPrice = await StarCityController.getUpdatedPriceForCard(card.name, card.number);

   card.prices.push(newPrice);
   card.save(); // <-- Error appears here

   return Card.findById(card._id).populate({ path: 'prices' }).exec();
}

and my CardType type like this:

import { Types } from 'mongoose';

export type CardType = {
    _id: Types.ObjectId,
    name: string,
    prices: [Types.ObjectId],
    number: string,
    sku: string
}

the card.save() function is not working anymore like it was when my code was in JS. Now, I know that I'm passing a CardType as my parameter on my updatePriceForCard function, and as such, instead of a mongoose Document, I'm passing a variable of a type that doesn't have a save property in it.

My question is, what would be the best approach to tackle something like this?

CodePudding user response：

Did you tried creating a new instance of CardType before saving it?

CodePudding user response：

You will have to add the mongoose Document type to your CardType.

import { Types, Document } from 'mongoose';

export type CardType = {
    _id: Types.ObjectId,
    name: string,
    prices: [Types.ObjectId],
    number: string,
    sku: string
} & Document

This will add all the necessary document methods to the type. Make sure to import the Document type from mongoose, otherwise it may use the DOM-Document type which will not work.

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