You need to test if the data is already in the db first.
There is a handy method:
model_object, created = YourModel.objects.get_or_create(...)
If you still get this errors, you might want to check if
your sequence is in sync:
select max(id) from yourapp_yourmodel;
select * from
Hi all,
Problem: I want to use Transaction to save data to a postgresql-db.
Error: IntegrityError: doppelter Schlüsselwert (double keyvalue)
verletzt (harm) Unique-Constraint
»measurements_loggerdata_logger_id_key«
My Model looks like this:
class LoggerData(models.Model):
logger =
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