Guys,
I am having some difficulties in the following code. I skipped a few
lines but basically I think the logic is very clear. In the line
"u.save()" it produce the error which is pasted in part 2. I found
that the "self" object under "save" method is different than the
original one that i created by "u = BRUser()". May I ask if anyone
here will have any suggestion?
Thank you.
Riddler
Part 1
-------------------------------------------
from sqlalchemy import *
from sqlalchemy.orm import *
dbengine = create_engine('postgres://riddler:[EMAIL PROTECTED]:5432/
riddler')
metadata = MetaData()
metadata.create_all(dbengine)
class BRUser(object):
isRecordExist = False
@classmethod
def save(self):
session = create_session()
session.save(self)
DBObj.session.flush()
self.isRecordExist = True
BRUser_table = Table('bruser', metadata,
Column('user_id', Integer, primary_key=True),
Column('username', String(50))
)
mapper(BRUser, BRUser_table, properties = {
'userID': BRUser_table.c.user_id,
'username': BRUser_table.c.username
})
u = BRUser()
u.username = "riddler"
u.save()
------------------------------------------
Part 2
-------------------------------------------
sqlalchemy.exceptions.InvalidRequestError: Class 'type' entity name
'None' has no mapper associated with it
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