When clicking the Save button on a form, I understood the Create method is executed. So all models on the form are automatically linked together (according to foreign keys) and saved in the database ?

I'm trying, by overriding Create method, to modify some behaviours and I need to get new records from the form inside the method. However, I suppose there is no ID until the end of the transaction which appends at the end of the method.

Maybe I'm totally wrong, all this is new for me.

EDIT: Looks like the "vals" parameter of Create method contains the values of all fields, so if I change values of vals, records will be saved with my new values I suppose.