Is there a way to make the makeOne and make functions of the EntityFactory not persist?

[squivix]

As I understand it, makeOne and make do not flush (no changes are written to db), but they do call em.persist(), so with the next em.flush() call a new entity is written to the db.

I am using an EntityFactory with the intent of just generating sample data, not saving to the database. While I could just call em.clear() after every makeOne or make call, I'm looking for a less cumbersome way. I tried overriding them to call em.clear() but it seems em is private in the EntityFactory

[B4nan]

You could just pass in a fork yourself and never flush it:

const factory = new AuthorFactory(em.fork());
// now the entities will get persisted to that fork, which will never get flushed (unless you use `make` methods).

but it seems em is private

That has no limitations on runtime, its just "typescript private", not "native private", you can always just do (em as any).

[B4nan]

But looking at the code, you basically want what the makeEntity method already does, I don't mind making it public. Worth mentioning that in current versions even em.create() (which is used under the hood in the seeder factory) is calling em.persist() automatically by default, so I also made the makeEntity() specifically disable that feature.

bb8f1b0