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from sqlalchemy import *
import testbase
import string
import sqlalchemy.attributes as attr
import sys
class Principal( object ):
pass
class User( Principal ):
pass
class Group( Principal ):
pass
class InheritTest(testbase.AssertMixin):
def setUpAll(self):
global principals
global users
global groups
global user_group_map
principals = Table(
'principals',
testbase.db,
Column('principal_id', Integer, Sequence('principal_id_seq', optional=False), primary_key=True),
Column('name', String(50), nullable=False),
)
users = Table(
'prin_users',
testbase.db,
Column('principal_id', Integer, ForeignKey('principals.principal_id'), primary_key=True),
Column('password', String(50), nullable=False),
Column('email', String(50), nullable=False),
Column('login_id', String(50), nullable=False),
)
groups = Table(
'prin_groups',
testbase.db,
Column( 'principal_id', Integer, ForeignKey('principals.principal_id'), primary_key=True),
)
user_group_map = Table(
'prin_user_group_map',
testbase.db,
Column('user_id', Integer, ForeignKey( "prin_users.principal_id"), primary_key=True ),
Column('group_id', Integer, ForeignKey( "prin_groups.principal_id"), primary_key=True ),
#Column('user_id', Integer, ForeignKey( "prin_users.principal_id"), ),
#Column('group_id', Integer, ForeignKey( "prin_groups.principal_id"), ),
)
principals.create()
users.create()
groups.create()
user_group_map.create()
def tearDownAll(self):
user_group_map.drop()
groups.drop()
users.drop()
principals.drop()
testbase.db.tables.clear()
def setUp(self):
objectstore.clear()
clear_mappers()
def testbasic(self):
assign_mapper( Principal, principals )
assign_mapper(
User,
users,
inherits=Principal.mapper
)
assign_mapper(
Group,
groups,
inherits=Principal.mapper,
properties=dict( users = relation(User.mapper, user_group_map, lazy=True, backref="groups") )
)
g = Group(name="group1")
g.users.append(User(name="user1", password="pw", email="foo@bar.com", login_id="lg1"))
objectstore.commit()
class InheritTest2(testbase.AssertMixin):
def setUpAll(self):
engine = testbase.db
global foo, bar, foo_bar
foo = Table('foo', engine,
Column('id', Integer, primary_key=True),
Column('data', String(20)),
).create()
bar = Table('bar', engine,
Column('bid', Integer, ForeignKey('foo.id'), primary_key=True),
#Column('fid', Integer, ForeignKey('foo.id'), )
).create()
foo_bar = Table('foo_bar', engine,
Column('foo_id', Integer, ForeignKey('foo.id')),
Column('bar_id', Integer, ForeignKey('bar.bid'))).create()
def tearDownAll(self):
foo_bar.drop()
bar.drop()
foo.drop()
testbase.db.tables.clear()
def testbasic(self):
class Foo(object):
def __init__(self, data=None):
self.data = data
def __str__(self):
return "Foo(%s)" % self.data
def __repr__(self):
return str(self)
Foo.mapper = mapper(Foo, foo)
class Bar(Foo):
def __str__(self):
return "Bar(%s)" % self.data
Bar.mapper = mapper(Bar, bar, inherits=Foo.mapper, properties = {
# the old way, you needed to explicitly set up a compound
# column like this. but now the mapper uses SyncRules to match up
# the parent/child inherited columns
#'id':[bar.c.bid, foo.c.id]
})
Bar.mapper.add_property('foos', relation(Foo.mapper, foo_bar, primaryjoin=bar.c.bid==foo_bar.c.bar_id, secondaryjoin=foo_bar.c.foo_id==foo.c.id, lazy=False))
#Bar.mapper.add_property('foos', relation(Foo.mapper, foo_bar, lazy=False))
b = Bar('barfoo')
objectstore.commit()
f1 = Foo('subfoo1')
f2 = Foo('subfoo2')
b.foos.append(f1)
b.foos.append(f2)
objectstore.commit()
objectstore.clear()
l =b.mapper.select()
print l[0]
print l[0].foos
self.assert_result(l, Bar,
# {'id':1, 'data':'barfoo', 'bid':1, 'foos':(Foo, [{'id':2,'data':'subfoo1'}, {'id':3,'data':'subfoo2'}])},
{'id':b.id, 'data':'barfoo', 'foos':(Foo, [{'id':f1.id,'data':'subfoo1'}, {'id':f2.id,'data':'subfoo2'}])},
)
class InheritTest3(testbase.AssertMixin):
def setUpAll(self):
engine = testbase.db
global foo, bar, blub, bar_foo, blub_bar, blub_foo,tables
engine.engine.echo = 'debug'
# the 'data' columns are to appease SQLite which cant handle a blank INSERT
foo = Table('foo', engine,
Column('id', Integer, Sequence('foo_seq'), primary_key=True),
Column('data', String(20)))
bar = Table('bar', engine,
Column('id', Integer, ForeignKey('foo.id'), primary_key=True),
Column('data', String(20)))
blub = Table('blub', engine,
Column('id', Integer, ForeignKey('bar.id'), primary_key=True),
Column('data', String(20)))
bar_foo = Table('bar_foo', engine,
Column('bar_id', Integer, ForeignKey('bar.id')),
Column('foo_id', Integer, ForeignKey('foo.id')))
blub_bar = Table('bar_blub', engine,
Column('blub_id', Integer, ForeignKey('blub.id')),
Column('bar_id', Integer, ForeignKey('bar.id')))
blub_foo = Table('blub_foo', engine,
Column('blub_id', Integer, ForeignKey('blub.id')),
Column('foo_id', Integer, ForeignKey('foo.id')))
tables = [foo, bar, blub, bar_foo, blub_bar, blub_foo]
for table in tables:
table.create()
def tearDownAll(self):
for table in reversed(tables):
table.drop()
testbase.db.tables.clear()
def tearDown(self):
for table in reversed(tables):
table.delete().execute()
def testbasic(self):
class Foo(object):
def __init__(self, data=None):
self.data = data
def __repr__(self):
return "Foo id %d, data %s" % (self.id, self.data)
Foo.mapper = mapper(Foo, foo)
class Bar(Foo):
def __repr__(self):
return "Bar id %d, data %s" % (self.id, self.data)
Bar.mapper = mapper(Bar, bar, inherits=Foo.mapper, properties={
'foos' :relation(Foo.mapper, bar_foo, primaryjoin=bar.c.id==bar_foo.c.bar_id, lazy=False)
# 'foos' :relation(Foo.mapper, bar_foo, lazy=True)
})
b = Bar('bar #1')
b.foos.append(Foo("foo #1"))
b.foos.append(Foo("foo #2"))
objectstore.commit()
objectstore.clear()
l = Bar.mapper.select()
print l[0], l[0].foos
def testadvanced(self):
class Foo(object):
def __init__(self, data=None):
self.data = data
def __repr__(self):
return "Foo id %d, data %s" % (self.id, self.data)
Foo.mapper = mapper(Foo, foo)
class Bar(Foo):
def __repr__(self):
return "Bar id %d, data %s" % (self.id, self.data)
Bar.mapper = mapper(Bar, bar, inherits=Foo.mapper)
class Blub(Bar):
def __repr__(self):
return "Blub id %d, data %s, bars %s, foos %s" % (self.id, self.data, repr([b for b in self.bars]), repr([f for f in self.foos]))
Blub.mapper = mapper(Blub, blub, inherits=Bar.mapper, properties={
'bars':relation(Bar.mapper, blub_bar, primaryjoin=blub.c.id==blub_bar.c.blub_id, lazy=False),
'foos':relation(Foo.mapper, blub_foo, primaryjoin=blub.c.id==blub_foo.c.blub_id, lazy=False),
})
useobjects = True
if (useobjects):
f1 = Foo("foo #1")
b1 = Bar("bar #1")
b2 = Bar("bar #2")
bl1 = Blub("blub #1")
bl1.foos.append(f1)
bl1.bars.append(b2)
objectstore.commit()
compare = repr(bl1)
blubid = bl1.id
objectstore.clear()
else:
foo.insert().execute(data='foo #1')
foo.insert().execute(data='foo #2')
bar.insert().execute(id=1, data="bar #1")
bar.insert().execute(id=2, data="bar #2")
blub.insert().execute(id=1, data="blub #1")
blub_bar.insert().execute(blub_id=1, bar_id=2)
blub_foo.insert().execute(blub_id=1, foo_id=2)
l = Blub.mapper.select()
self.echo(l)
self.assert_(repr(l[0]) == compare)
objectstore.clear()
x = Blub.mapper.get_by(id=blubid) #traceback 2
self.echo(x)
self.assert_(repr(x) == compare)
if __name__ == "__main__":
testbase.main()
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