Hi,
I am using Django version 1.0.2 final with Python 2.5.2
I have a model called Scheduler in which I have a colomn (called
"parent_id") which define a recursive relationship.
I defined it like this :
class Scheduler(models.Model):
id_schedule = models.AutoField(primary_key=True)
id_parent = models.ForeignKey("self",db_column='id_schedule')
id_object_type = models.ForeignKey(ObjectTypes,
db_column='id_object_type')
....
I create a new object with :
action=Scheduler(id_schedule = None,id_parent_id=1,id_object_type_id =
2 ......
My problem is that when I want to save the object (with action.save
()), it fails with the following error :
<class 'psycopg.IntegrityError'>ERROR: null value in column
"id_parent" violates not-null constraint
INSERT INTO "scheduler" ("id_schedule", "id_object_type", ....
So the generated SQL query does not include the id_parent field !
Why ?
What am i doing wrong ?
Thanks for your help
F.
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