Hello,
This is my problem:
class A(db.Model):
up = db.IntegerProperty(default=0, required=True)
down = db.IntegerProperty(default=0, required=True)
def move(self, direction):
a = A.get(self.key())
def txn(a, direction):
if direction == "up":
a.up += 1
else:
a.down += 1
a.put() # OK
b = B(a=a)
b.put() # Cannot operate on different entity groups in a
transaction???
db.run_in_transaction(txn, a, direction)
class B(db.Model):
a = db.ReferenceProperty(A, collection_name='a_b')
Can somebody tell me what I'm doing wrong?
Thanks
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