add runInTransaction and wrapInTransaction

[lytc]

Hi @odavid , I created this PR for this request #92, could you help to have a look?

[odavid]

Please change this dependency to be a dev dependency

[odavid]

Please add a newline here...

[odavid]

Hi @lytc, thanks for the contribution!

I feel you also need to add the runInTransaction function to the exports within the index.ts

[koenpunt]

Not sure if this is the correct thread to bring this up, but I feel it might be related; I'm using this library indirectly (through typeorm-test-transactions), and I was wondering if it would possible to have separate "start" and "stop" transaction methods? So not a function wrapper (or decorator).

I hope to be able to use it in before/after hooks of jest, to automatically "wrap" every test in a transaction;

beforeEach(() => startTransaction());

test('do something with the database', async () => {
  await someDbAction();
});

afterEach(() => rollbackTransaction());

Or more plainly;

await startTransaction();
await someDbAction();
await rollbackTransaction();

[lytc]

Hi @lytc, thanks for the contribution!

I feel you also need to add the runInTransaction function to the exports within the index.ts

I added that already!

[lytc]

Hi @odavid ,
Thanks for your review, I make the change regarding to your comments!

[odavid]

Thank you!