Force an application to register migrations

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wms-core",
-  "version": "0.2.0",
+  "version": "0.2.5",
   "description": "Node web framework",
   "repository": "git@gitlab.com:ArisuOngaku/wms-core.git",
   "author": "Alice Gaudon <alice@gaudon.pro>",

src/Application.ts

@@ -1,17 +1,14 @@
 import express, {NextFunction, Request, Response, Router} from 'express';
-import {
+import {BadRequestError, HttpError, NotFoundHttpError, ServerError, ServiceUnavailableHttpError} from "./HttpError";
-    BadRequestError,
-    HttpError,
-    NotFoundHttpError,
-    ServerError,
-    ServiceUnavailableHttpError
-} from "./HttpError";
 import {lib} from "nunjucks";
 import Logger from "./Logger";
 import WebSocketListener from "./WebSocketListener";
 import ApplicationComponent from "./ApplicationComponent";
-import TemplateError = lib.TemplateError;
 import Controller from "./Controller";
+import MysqlConnectionManager from "./db/MysqlConnectionManager";
+import Migration from "./db/Migration";
+import TemplateError = lib.TemplateError;
+import {Type} from "./Utils";
 
 export default abstract class Application {
     private readonly version: string;
@@ -25,6 +22,8 @@ export default abstract class Application {
         this.version = version;
     }
 
+    protected abstract getMigrations(): Type<Migration>[];
+
     protected abstract async init(): Promise<void>;
 
     protected use(thing: Controller | WebSocketListener | ApplicationComponent<any>) {
@@ -45,6 +44,9 @@ export default abstract class Application {
             this.stop().catch(console.error);
         });
 
+        // Register migrations
+        MysqlConnectionManager.registerMigrations(this.getMigrations());
+
         // Register all components and alike
         await this.init();
 

src/Utils.ts

@@ -32,4 +32,8 @@ export function cryptoRandomDictionary(size: number, dictionary: string): string
     }
 
     return output.join('');
+}
+
+export interface Type<T> extends Function {
+    new(...args: any[]): T
 }

src/db/MysqlConnectionManager.ts

@@ -2,6 +2,7 @@ import mysql, {Connection, FieldInfo, Pool} from 'mysql';
 import config from 'config';
 import Migration from "./Migration";
 import Logger from "../Logger";
+import {Type} from "../Utils";
 
 export interface QueryResult {
     readonly results: any[];
@@ -17,9 +18,17 @@ export async function query(queryString: string, values?: any, connection?: Conn
 export default class MysqlConnectionManager {
     private static currentPool?: Pool;
     private static databaseReady: boolean = false;
+    private static migrationsRegistered: boolean = false;
     private static readonly migrations: Migration[] = [];
 
-    public static registerMigration(migration: (version: number) => Migration) {
+    public static registerMigrations(migrations: Type<Migration>[]) {
+        if (!this.migrationsRegistered) {
+            this.migrationsRegistered = true;
+            migrations.forEach(m => this.registerMigration(v => new m(v)));
+        }
+    }
+
+    private static registerMigration(migration: (version: number) => Migration) {
         this.migrations.push(migration(this.migrations.length + 1));
     }
 

test/Model.test.ts

@@ -1,7 +1,7 @@
-import registerMigrations from "./_registerMigrations";
-import Model from "../src/db/Model";
 import MysqlConnectionManager from "../src/db/MysqlConnectionManager";
+import Model from "../src/db/Model";
 import Validator from "../src/db/Validator";
+import {MIGRATIONS} from "./_migrations";
 
 class FakeDummyModel extends Model {
     public name?: string;
@@ -16,7 +16,7 @@ class FakeDummyModel extends Model {
 }
 
 beforeAll(async (done) => {
-    registerMigrations();
+    MysqlConnectionManager.registerMigrations(MIGRATIONS);
     await MysqlConnectionManager.prepare();
     done();
 });

test/_migrations.ts

@@ -0,0 +1,7 @@
+import CreateMigrationsTable from "../src/migrations/CreateMigrationsTable";
+import CreateLogsTable from "../src/migrations/CreateLogsTable";
+
+export const MIGRATIONS = [
+    CreateMigrationsTable,
+    CreateLogsTable,
+];

test/_registerMigrations.ts

@@ -1,15 +0,0 @@
-import CreateMigrationsTable from "../src/migrations/CreateMigrationsTable";
-import CreateLogsTable from "../src/migrations/CreateLogsTable";
-import MysqlConnectionManager from "../src/db/MysqlConnectionManager";
-
-let migrationsRegistered = false;
-
-export default function registerMigrations() {
-    if (!migrationsRegistered) {
-        migrationsRegistered = true;
-        [
-            CreateMigrationsTable,
-            CreateLogsTable,
-        ].forEach(m => MysqlConnectionManager.registerMigration(v => new m(v)));
-    }
-}

yarn.lock

@@ -539,9 +539,9 @@
     "@types/node" "*"
     "@types/range-parser" "*"
 
-"@types/express-session@*":
+"@types/express-session@*", "@types/express-session@^1.17.0":
   version "1.17.0"
-  resolved "https://registry.yarnpkg.com/@types/express-session/-/express-session-1.17.0.tgz#770daf81368f6278e3e40dd894e1e52abbdca0cd"
+  resolved "http://127.0.0.1:4873/@types%2fexpress-session/-/express-session-1.17.0.tgz#770daf81368f6278e3e40dd894e1e52abbdca0cd"
   integrity sha512-OQEHeBFE1UhChVIBhRh9qElHUvTp4BzKKHxMDkGHT7WuYk5eL93hPG7D8YAIkoBSbhNEY0RjreF15zn+U0eLjA==
   dependencies:
     "@types/express" "*"