fix: ESLint and TS errors

Author: chrispader

example/src/Database.ts

@@ -50,13 +50,13 @@ export async function typeORMGetBooks() {
   return result;
 }
 
-export async function executeFailingTypeORMQuery() {
+export async function executeFailingTypeORMQuery(): Promise<QueryResult | void> {
   const bookRepository = datasource.getRepository(Book);
 
   try {
     const manualQuery = (await bookRepository.query(`
           SELECT * From UnexistingTable
-        `)) as QueryResult<Book>;
+        `)) as QueryResult;
     return manualQuery;
   } catch (e) {
     console.warn('should have cached');

example/src/model/Book.ts

@@ -1,11 +1,5 @@
 import 'reflect-metadata';
-import {
-  Entity,
-  Column,
-  PrimaryGeneratedColumn,
-  OneToOne,
-  JoinColumn,
-} from 'typeorm/browser';
+import {Entity, Column, PrimaryGeneratedColumn} from 'typeorm/browser';
 import {BaseEntity} from 'typeorm';
 
 @Entity()

example/src/model/User.ts

@@ -20,8 +20,8 @@ export class User {
   // favoriteBook!: Book;
 
   @Column('simple-json')
-  metadata: {nickname: string};
+  metadata: {nickname: string} | undefined;
 
   @Column('blob')
-  avatar: ArrayBuffer;
+  avatar: ArrayBuffer | undefined;
 }

example/src/tests/unitTests.spec.ts

@@ -6,6 +6,7 @@ import type {
 import {beforeEach, describe, it} from './MochaRNAdapter';
 import chai from 'chai';
 import {testDb as testDbInternal, resetTestDb} from './db';
+import type {User} from '../model/User';
 
 function isError(e: unknown): e is Error {
   return e instanceof Error;
@@ -219,7 +220,8 @@ export function registerUnitTests() {
             [id],
           );
 
-          actual.push(results.rows?._array[0]?.networth);
+          const row = results.rows?._array[0] as User | undefined;
+          actual.push(row?.networth);
         });
 
         promises.push(promised);
@@ -513,7 +515,8 @@ export function registerUnitTests() {
             [id],
           );
 
-          actual.push(results.rows?._array[0]?.networth);
+          const row = results.rows?._array[0] as User | undefined;
+          actual.push(row?.networth);
         });
 
         promises.push(promised);