Module Expr Str ImportFrom alias alias alias ClassDef bases AttributeLoad NameLoad attr body Assign NameStore Call AttributeLoad NameLoad attr keyword Num Assign NameStore Call AttributeLoad NameLoad attr decorator_list ClassDef bases AttributeLoad NameLoad attr body Assign NameStore Call AttributeLoad NameLoad attr keyword NameLoad Assign NameStore Call AttributeLoad NameLoad attr decorator_list Assign NameStore Dict Str Str
N/A N/A 
Tests for forcing insert and update queries (instead of Django's normal
automatic behaviour).
 django.db models transaction IntegrityError Counter N/A N/A models Model N/A N/A name N/A N/A models CharField max_length 10 N/A value N/A N/A models IntegerField N/A WithCustomPK N/A N/A models Model N/A N/A name N/A N/A models IntegerField primary_key True N/A value N/A N/A models IntegerField N/A N/A __test__ N/A API_TESTS 
>>> c = Counter.objects.create(name="one", value=1)

# The normal case
>>> c.value = 2
>>> c.save()

# Same thing, via an update
>>> c.value = 3
>>> c.save(force_update=True)

# Won't work because force_update and force_insert are mutually exclusive
>>> c.value = 4
>>> c.save(force_insert=True, force_update=True)
Traceback (most recent call last):
...
ValueError: Cannot force both insert and updating in model saving.

# Try to update something that doesn't have a primary key in the first place.
>>> c1 = Counter(name="two", value=2)
>>> c1.save(force_update=True)
Traceback (most recent call last):
...
ValueError: Cannot force an update in save() with no primary key.

>>> c1.save(force_insert=True)

# Won't work because we can't insert a pk of the same value.
>>> sid = transaction.savepoint()
>>> c.value = 5
>>> try:
...     c.save(force_insert=True)
... except Exception, e:
...     if isinstance(e, IntegrityError):
...         print "Pass"
...     else:
...         print "Fail with %s" % type(e)
Pass
>>> transaction.savepoint_rollback(sid)

# Trying to update should still fail, even with manual primary keys, if the
# data isn't in the database already.
>>> obj = WithCustomPK(name=1, value=1)
>>> obj.save(force_update=True)
Traceback (most recent call last):
...
DatabaseError: ...

