Convert backend to ESM

- About 5 years overdue
- Remove eslint, use bomejs instead

backend/models/user.js

@@ -1,69 +1,65 @@
 // Objection Docs:
 // http://vincit.github.io/objection.js/
 
-const db             = require('../db');
-const helpers        = require('../lib/helpers');
-const Model          = require('objection').Model;
-const UserPermission = require('./user_permission');
-const now            = require('./now_helper');
+import { Model } from "objection";
+import db from "../db.js";
+import { convertBoolFieldsToInt, convertIntFieldsToBool } from "../lib/helpers.js";
+import now from "./now_helper.js";
+import UserPermission from "./user_permission.js";
 
 Model.knex(db);
 
-const boolFields = [
-	'is_deleted',
-	'is_disabled',
-];
+const boolFields = ["is_deleted", "is_disabled"];
 
 class User extends Model {
-	$beforeInsert () {
-		this.created_on  = now();
+	$beforeInsert() {
+		this.created_on = now();
 		this.modified_on = now();
 
 		// Default for roles
-		if (typeof this.roles === 'undefined') {
+		if (typeof this.roles === "undefined") {
 			this.roles = [];
 		}
 	}
 
-	$beforeUpdate () {
+	$beforeUpdate() {
 		this.modified_on = now();
 	}
 
 	$parseDatabaseJson(json) {
-		json = super.$parseDatabaseJson(json);
-		return helpers.convertIntFieldsToBool(json, boolFields);
+		const thisJson = super.$parseDatabaseJson(json);
+		return convertIntFieldsToBool(thisJson, boolFields);
 	}
 
 	$formatDatabaseJson(json) {
-		json = helpers.convertBoolFieldsToInt(json, boolFields);
-		return super.$formatDatabaseJson(json);
+		const thisJson = convertBoolFieldsToInt(json, boolFields);
+		return super.$formatDatabaseJson(thisJson);
 	}
 
-	static get name () {
-		return 'User';
+	static get name() {
+		return "User";
 	}
 
-	static get tableName () {
-		return 'user';
+	static get tableName() {
+		return "user";
 	}
 
-	static get jsonAttributes () {
-		return ['roles'];
+	static get jsonAttributes() {
+		return ["roles"];
 	}
 
-	static get relationMappings () {
+	static get relationMappings() {
 		return {
 			permissions: {
-				relation:   Model.HasOneRelation,
+				relation: Model.HasOneRelation,
 				modelClass: UserPermission,
-				join:       {
-					from: 'user.id',
-					to:   'user_permission.user_id'
-				}
-			}
+				join: {
+					from: "user.id",
+					to: "user_permission.user_id",
+				},
+			},
 		};
 	}
-
 }
 
-module.exports = User;
+export default User;