Switch to TypeORM's DataSource API (#299)

- Switch to TypeORM's DataSource API, rather than using the now deprecated ormconfig.json
- This will fix stage deployment not knowing how to deploy the database migrations

#297

> **NOTE:** This change requires the deployment scripts to be updated, please update them on the server before merging

Co-authored-by: Ethan Lane <ethan@vylpes.com>
Reviewed-on: https://gitea.vylpes.xyz/RabbitLabs/vylbot-app/pulls/299

src/contracts/BaseEntity.ts

@@ -1,5 +1,6 @@
-import { Column, DeepPartial, EntityTarget, getConnection, PrimaryColumn, ObjectLiteral, FindOptionsWhere } from "typeorm";
+import { Column, DeepPartial, EntityTarget, PrimaryColumn, ObjectLiteral, FindOptionsWhere } from "typeorm";
 import { v4 } from "uuid";
+import AppDataSource from "../database/dataSources/appDataSource";
 
 export default class BaseEntity {
     constructor() {
@@ -21,25 +22,19 @@ export default class BaseEntity {
     public async Save<T extends BaseEntity>(target: EntityTarget<T>, entity: DeepPartial<T>): Promise<void> {
         this.WhenUpdated = new Date();
 
-        const connection = getConnection();
-
-        const repository = connection.getRepository<T>(target);
+        const repository = AppDataSource.getRepository<T>(target);
 
         await repository.save(entity);
     }
 
     public static async Remove<T extends BaseEntity>(target: EntityTarget<T>, entity: T): Promise<void> {
-        const connection = getConnection();
-
-        const repository = connection.getRepository<T>(target);
+        const repository = AppDataSource.getRepository<T>(target);
 
         await repository.remove(entity);
     }
 
     public static async FetchAll<T extends BaseEntity>(target: EntityTarget<T>, relations?: string[]): Promise<T[]> {
-        const connection = getConnection();
-
-        const repository = connection.getRepository<T>(target);
+        const repository = AppDataSource.getRepository<T>(target);
 
         const all = await repository.find({ relations: relations || [] });
 
@@ -47,9 +42,7 @@ export default class BaseEntity {
     }
 
     public static async FetchOneById<T extends BaseEntity>(target: EntityTarget<T>, id: string, relations?: string[]): Promise<T | null> {
-        const connection = getConnection();
-
-        const repository = connection.getRepository<T>(target);
+        const repository = AppDataSource.getRepository<T>(target);
 
         const single = await repository.findOne({ where: ({ Id: id } as FindOptionsWhere<T>), relations: relations || {} });
 
@@ -57,9 +50,7 @@ export default class BaseEntity {
     }
 
     public static async Any<T extends ObjectLiteral>(target: EntityTarget<T>): Promise<boolean> {
-        const connection = getConnection();
-
-        const repository = connection.getRepository<T>(target);
+        const repository = AppDataSource.getRepository<T>(target);
 
         const any = await repository.find();