Why persistence.flush is executed when .selectJSON called?

[AleksMeshkov]

Hello!

If I create a new obejct

var c = new Category({name: "Main category"});
persistence.add(c);

then run

Category.all().selectJSON(...)

that object will be saved into the database even without running persistence.flush(). Should it be so? Can I somehow prevent this?

[AleksMeshkov]

By the way, can I somehow rollback entity's changed (dirty) attributes to the last saved (flushed) state?

upd: I think I'v found it. It's persistence.clean(), right?

[zefhemel]

Every query you execute (e.g. list) will automatically flush, so that the query results will reflect changes made "locally" (i.e. not in the database). Indeed, clean() should reset "local" changes.

[AleksMeshkov]

Thank you, @zefhemel!