mongooseModels.js

import mongoose from 'mongoose';
import passportLocalMongoose from 'passport-local-mongoose';
const opts = { toJSON: { virtuals: true } };
const reviewSchema = mongoose.Schema({
	author: {
		type: mongoose.Schema.Types.ObjectId,
		ref: 'User',
	},
	body: {
		type: String,
		required: true,
	},
	rating: {
		type: Number,
		required: true,
	},
});

const imageSchema = mongoose.Schema({
	url: String,
	filename: String,
});

imageSchema.virtual('thumbnail').get(function () {
	return this.url.replace('/upload', '/upload/w_200');
});
const campgroundSchema = mongoose.Schema(
	{
		title: String,
		price: Number,
		images: [imageSchema],
		geometry: {
			type: {
				type: String,
				enum: ['Point'],
				required: true,
			},
			coordinates: {
				type: [Number],
				required: true,
			},
		},
		description: String,
		location: String,
		author: {
			type: mongoose.Schema.Types.ObjectId,
			ref: 'User',
		},
		reviews: [
			{
				type: mongoose.Schema.Types.ObjectId,
				ref: 'Review',
			},
		],
	},
	opts
);

campgroundSchema.virtual('properties.campLink').get(function () {
	return `<a href= /campgrounds/${this._id}>${this.title}</a>`;
});
const userSchema = new mongoose.Schema({
	username: {
		type: String,
		unique: true,
		required: true,
	},
	email: {
		type: String,
		required: true,
		unique: true,
	},
});

// middlewares
userSchema.plugin(passportLocalMongoose);

campgroundSchema.post('findOneAndDelete', async function (camp) {
	if (camp) {
		Review.deleteMany({ _id: { $in: camp.reviews } });
	}
});

const User = mongoose.model('User', userSchema);
const Review = mongoose.model('Review', reviewSchema);
const Campground = mongoose.model('Campground', campgroundSchema);
export { Campground, Review, User };