def create_session(engine):
# Creating a session
from sqlalchemy.orm import sessionmaker
Session = sessionmaker(bind=engine)
session = Session()
return session
if __name__ == '__main__':
from sqlalchemy import create_engine
engine = create_engine('sqlite:///:memory:', echo=True)
create_model(engine)
session = create_session(engine)
ed_user = create_user()
print ed_user.id # None
print "** Adding user to session."
session.add(ed_user)
our_user = session.query(User).filter_by(name='ed').first()
print "** Are users equal?", ed_user is our_user
print "** Comitting session."
session.commit()
print "** Printing ed_user id:"
print ed_user.id # 1
from example1 import User
from example2 import create_model
from example3 import create_user
from example4 import create_session
if __name__ == '__main__':
from sqlalchemy import create_engine
engine = create_engine('sqlite:///:memory:', echo=True)
create_model(engine)
session = create_session(engine)
one_user = create_user()
session.add(one_user)
another_user = create_user()
session.add(another_user)
session.commit()
for some_user in session.query(User):
print "** Iterating over users"
print some_user
print "** Counting all users"
print session.query(User).count()
print "** Counting all users another way"
print len(session.query(User).all())
