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from sqlalchemy import *
import os
import testbase
__all__ = ['db', 'users', 'addresses', 'orders', 'orderitems', 'keywords', 'itemkeywords',
'User', 'Address', 'Order', 'Item', 'Keyword'
]
ECHO = testbase.echo
db = testbase.db
users = Table('users', db,
Column('user_id', Integer, Sequence('user_id_seq', optional=True), primary_key = True),
Column('user_name', String(40)),
)
addresses = Table('email_addresses', db,
Column('address_id', Integer, Sequence('address_id_seq', optional=True), primary_key = True),
Column('user_id', Integer, ForeignKey(users.c.user_id)),
Column('email_address', String(40)),
)
orders = Table('orders', db,
Column('order_id', Integer, primary_key = True),
Column('user_id', Integer, ForeignKey(users.c.user_id)),
Column('description', String(50)),
Column('isopen', Integer)
)
orderitems = Table('items', db,
Column('item_id', INT, primary_key = True),
Column('order_id', INT, ForeignKey("orders")),
Column('item_name', VARCHAR(50))
)
keywords = Table('keywords', db,
Column('keyword_id', Integer, primary_key = True),
Column('name', VARCHAR(50))
)
itemkeywords = Table('itemkeywords', db,
Column('item_id', INT, ForeignKey("items")),
Column('keyword_id', INT, ForeignKey("keywords"))
)
def create():
users.create()
addresses.create()
orders.create()
orderitems.create()
keywords.create()
itemkeywords.create()
def drop():
itemkeywords.drop()
keywords.drop()
orderitems.drop()
orders.drop()
addresses.drop()
users.drop()
def delete():
itemkeywords.delete().execute()
keywords.delete().execute()
orderitems.delete().execute()
orders.delete().execute()
addresses.delete().execute()
users.delete().execute()
db.commit()
def data():
delete()
# with SQLITE, the OID column of a table defaults to the primary key, if it has one.
# so to database-neutrally get rows back in "insert order" based on OID, we
# have to also put the primary keys in order for the purpose of these tests
users.insert().execute(
dict(user_id = 7, user_name = 'jack'),
dict(user_id = 8, user_name = 'ed'),
dict(user_id = 9, user_name = 'fred')
)
addresses.insert().execute(
dict(address_id = 1, user_id = 7, email_address = "jack@bean.com"),
dict(address_id = 2, user_id = 8, email_address = "ed@wood.com"),
dict(address_id = 3, user_id = 8, email_address = "ed@lala.com")
)
orders.insert().execute(
dict(order_id = 1, user_id = 7, description = 'order 1', isopen=0),
dict(order_id = 2, user_id = 9, description = 'order 2', isopen=0),
dict(order_id = 3, user_id = 7, description = 'order 3', isopen=1),
dict(order_id = 4, user_id = 9, description = 'order 4', isopen=1),
dict(order_id = 5, user_id = 7, description = 'order 5', isopen=0)
)
orderitems.insert().execute(
dict(item_id=1, order_id=2, item_name='item 1'),
dict(item_id=2, order_id=2, item_name='item 2'),
dict(item_id=3, order_id=3, item_name='item 3'),
dict(item_id=4, order_id=3, item_name='item 4'),
dict(item_id=5, order_id=3, item_name='item 5'),
)
keywords.insert().execute(
dict(keyword_id=1, name='blue'),
dict(keyword_id=2, name='red'),
dict(keyword_id=3, name='green'),
dict(keyword_id=4, name='big'),
dict(keyword_id=5, name='small'),
dict(keyword_id=6, name='round'),
dict(keyword_id=7, name='square')
)
# this many-to-many table has the keywords inserted
# in primary key order, to appease the unit tests.
# this is because postgres, oracle, and sqlite all support
# true insert-order row id, but of course our pal MySQL does not,
# so the best it can do is order by, well something, so there you go.
itemkeywords.insert().execute(
dict(keyword_id=2, item_id=1),
dict(keyword_id=2, item_id=2),
dict(keyword_id=4, item_id=1),
dict(keyword_id=6, item_id=1),
dict(keyword_id=5, item_id=2),
dict(keyword_id=3, item_id=3),
dict(keyword_id=4, item_id=3),
dict(keyword_id=7, item_id=2),
dict(keyword_id=6, item_id=3)
)
db.commit()
class User(object):
def __init__(self):
self.user_id = None
def __repr__(self):
return (
"""
objid: %d
User ID: %s
User Name: %s
email address ?: %s
Addresses: %s
Orders: %s
Open Orders %s
Closed Orderss %s
------------------
""" % tuple([id(self), self.user_id, repr(self.user_name), repr(getattr(self, 'email_address', None))] + [repr(getattr(self, attr, None)) for attr in ('addresses', 'orders', 'open_orders', 'closed_orders')])
)
class Address(object):
def __repr__(self):
return "Address: " + repr(getattr(self, 'address_id', None)) + " " + repr(getattr(self, 'user_id', None)) + " " + repr(self.email_address)
class Order(object):
def __init__(self):
self.isopen=0
def __repr__(self):
return "Order: " + repr(self.description) + " " + repr(self.isopen) + " " + repr(getattr(self, 'items', None))
class Item(object):
def __repr__(self):
return "Item: " + repr(self.item_name) + " " +repr(getattr(self, 'keywords', None))
class Keyword(object):
def __repr__(self):
return "Keyword: %s/%s" % (repr(getattr(self, 'keyword_id', None)),repr(self.name))
#db.echo = True
|
