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import testbase
from sqlalchemy import *
from sqlalchemy.orm import *
from sqlalchemy import exceptions
from testlib import *
import testlib.tables as tables
# TODO: these are more tests that should be updated to be part of test/orm/query.py
class Foo(object):
def __init__(self, **kwargs):
for k in kwargs:
setattr(self, k, kwargs[k])
class GenerativeQueryTest(PersistTest):
def setUpAll(self):
global foo, metadata
metadata = MetaData(testbase.db)
foo = Table('foo', metadata,
Column('id', Integer, Sequence('foo_id_seq'), primary_key=True),
Column('bar', Integer),
Column('range', Integer))
mapper(Foo, foo)
metadata.create_all()
sess = create_session(bind=testbase.db)
for i in range(100):
sess.save(Foo(bar=i, range=i%10))
sess.flush()
def tearDownAll(self):
metadata.drop_all()
clear_mappers()
def test_selectby(self):
res = create_session(bind=testbase.db).query(Foo).filter_by(range=5)
assert res.order_by([Foo.c.bar])[0].bar == 5
assert res.order_by([desc(Foo.c.bar)])[0].bar == 95
@testing.unsupported('mssql')
def test_slice(self):
sess = create_session(bind=testbase.db)
query = sess.query(Foo)
orig = query.all()
assert query[1] == orig[1]
assert list(query[10:20]) == orig[10:20]
assert list(query[10:]) == orig[10:]
assert list(query[:10]) == orig[:10]
assert list(query[:10]) == orig[:10]
assert list(query[10:40:3]) == orig[10:40:3]
assert list(query[-5:]) == orig[-5:]
assert query[10:20][5] == orig[10:20][5]
@testing.supported('mssql')
def test_slice_mssql(self):
sess = create_session(bind=testbase.db)
query = sess.query(Foo)
orig = query.all()
assert list(query[:10]) == orig[:10]
assert list(query[:10]) == orig[:10]
def test_aggregate(self):
sess = create_session(bind=testbase.db)
query = sess.query(Foo)
assert query.count() == 100
assert query.filter(foo.c.bar<30).min(foo.c.bar) == 0
assert query.filter(foo.c.bar<30).max(foo.c.bar) == 29
assert query.filter(foo.c.bar<30).apply_max(foo.c.bar).first() == 29
assert query.filter(foo.c.bar<30).apply_max(foo.c.bar).one() == 29
@testing.unsupported('mysql')
def test_aggregate_1(self):
# this one fails in mysql as the result comes back as a string
query = create_session(bind=testbase.db).query(Foo)
assert query.filter(foo.c.bar<30).sum(foo.c.bar) == 435
@testing.unsupported('postgres', 'mysql', 'firebird', 'mssql')
def test_aggregate_2(self):
query = create_session(bind=testbase.db).query(Foo)
assert query.filter(foo.c.bar<30).avg(foo.c.bar) == 14.5
@testing.supported('postgres', 'mysql', 'firebird', 'mssql')
def test_aggregate_2_int(self):
query = create_session(bind=testbase.db).query(Foo)
assert int(query.filter(foo.c.bar<30).avg(foo.c.bar)) == 14
@testing.unsupported('postgres', 'mysql', 'firebird', 'mssql')
def test_aggregate_3(self):
query = create_session(bind=testbase.db).query(Foo)
assert query.filter(foo.c.bar<30).apply_avg(foo.c.bar).first() == 14.5
assert query.filter(foo.c.bar<30).apply_avg(foo.c.bar).one() == 14.5
def test_filter(self):
query = create_session(bind=testbase.db).query(Foo)
assert query.count() == 100
assert query.filter(Foo.c.bar < 30).count() == 30
res2 = query.filter(Foo.c.bar < 30).filter(Foo.c.bar > 10)
assert res2.count() == 19
def test_options(self):
query = create_session(bind=testbase.db).query(Foo)
class ext1(MapperExtension):
def populate_instance(self, mapper, selectcontext, row, instance, **flags):
instance.TEST = "hello world"
return EXT_CONTINUE
assert query.options(extension(ext1()))[0].TEST == "hello world"
def test_order_by(self):
query = create_session(bind=testbase.db).query(Foo)
assert query.order_by([Foo.c.bar])[0].bar == 0
assert query.order_by([desc(Foo.c.bar)])[0].bar == 99
def test_offset(self):
query = create_session(bind=testbase.db).query(Foo)
assert list(query.order_by([Foo.c.bar]).offset(10))[0].bar == 10
def test_offset(self):
query = create_session(bind=testbase.db).query(Foo)
assert len(list(query.limit(10))) == 10
class Obj1(object):
pass
class Obj2(object):
pass
class GenerativeTest2(PersistTest):
def setUpAll(self):
global metadata, table1, table2
metadata = MetaData()
table1 = Table('Table1', metadata,
Column('id', Integer, primary_key=True),
)
table2 = Table('Table2', metadata,
Column('t1id', Integer, ForeignKey("Table1.id"), primary_key=True),
Column('num', Integer, primary_key=True),
)
mapper(Obj1, table1)
mapper(Obj2, table2)
metadata.create_all(bind=testbase.db)
testbase.db.execute(table1.insert(), {'id':1},{'id':2},{'id':3},{'id':4})
testbase.db.execute(table2.insert(), {'num':1,'t1id':1},{'num':2,'t1id':1},{'num':3,'t1id':1},\
{'num':4,'t1id':2},{'num':5,'t1id':2},{'num':6,'t1id':3})
def tearDownAll(self):
metadata.drop_all(bind=testbase.db)
clear_mappers()
def test_distinctcount(self):
query = create_session(bind=testbase.db).query(Obj1)
assert query.count() == 4
res = query.filter(and_(table1.c.id==table2.c.t1id,table2.c.t1id==1))
assert res.count() == 3
res = query.filter(and_(table1.c.id==table2.c.t1id,table2.c.t1id==1)).distinct()
self.assertEqual(res.count(), 1)
class RelationsTest(AssertMixin):
def setUpAll(self):
tables.create()
tables.data()
def tearDownAll(self):
tables.drop()
def tearDown(self):
clear_mappers()
def test_jointo(self):
"""test the join and outerjoin functions on Query"""
mapper(tables.User, tables.users, properties={
'orders':relation(mapper(tables.Order, tables.orders, properties={
'items':relation(mapper(tables.Item, tables.orderitems))
}))
})
session = create_session(bind=testbase.db)
query = session.query(tables.User)
x = query.join(['orders', 'items']).filter(tables.Item.c.item_id==2)
print x.compile()
self.assert_result(list(x), tables.User, tables.user_result[2])
def test_outerjointo(self):
"""test the join and outerjoin functions on Query"""
mapper(tables.User, tables.users, properties={
'orders':relation(mapper(tables.Order, tables.orders, properties={
'items':relation(mapper(tables.Item, tables.orderitems))
}))
})
session = create_session(bind=testbase.db)
query = session.query(tables.User)
x = query.outerjoin(['orders', 'items']).filter(or_(tables.Order.c.order_id==None,tables.Item.c.item_id==2))
print x.compile()
self.assert_result(list(x), tables.User, *tables.user_result[1:3])
def test_outerjointo_count(self):
"""test the join and outerjoin functions on Query"""
mapper(tables.User, tables.users, properties={
'orders':relation(mapper(tables.Order, tables.orders, properties={
'items':relation(mapper(tables.Item, tables.orderitems))
}))
})
session = create_session(bind=testbase.db)
query = session.query(tables.User)
x = query.outerjoin(['orders', 'items']).filter(or_(tables.Order.c.order_id==None,tables.Item.c.item_id==2)).count()
assert x==2
def test_from(self):
mapper(tables.User, tables.users, properties={
'orders':relation(mapper(tables.Order, tables.orders, properties={
'items':relation(mapper(tables.Item, tables.orderitems))
}))
})
session = create_session(bind=testbase.db)
query = session.query(tables.User)
x = query.select_from([tables.users.outerjoin(tables.orders).outerjoin(tables.orderitems)]).\
filter(or_(tables.Order.c.order_id==None,tables.Item.c.item_id==2))
print x.compile()
self.assert_result(list(x), tables.User, *tables.user_result[1:3])
class CaseSensitiveTest(PersistTest):
def setUpAll(self):
global metadata, table1, table2
metadata = MetaData(testbase.db)
table1 = Table('Table1', metadata,
Column('ID', Integer, primary_key=True),
)
table2 = Table('Table2', metadata,
Column('T1ID', Integer, ForeignKey("Table1.ID"), primary_key=True),
Column('NUM', Integer, primary_key=True),
)
mapper(Obj1, table1)
mapper(Obj2, table2)
metadata.create_all()
table1.insert().execute({'ID':1},{'ID':2},{'ID':3},{'ID':4})
table2.insert().execute({'NUM':1,'T1ID':1},{'NUM':2,'T1ID':1},{'NUM':3,'T1ID':1},\
{'NUM':4,'T1ID':2},{'NUM':5,'T1ID':2},{'NUM':6,'T1ID':3})
def tearDownAll(self):
metadata.drop_all()
clear_mappers()
def test_distinctcount(self):
q = create_session(bind=testbase.db).query(Obj1)
assert q.count() == 4
res = q.filter(and_(table1.c.ID==table2.c.T1ID,table2.c.T1ID==1))
assert res.count() == 3
res = q.filter(and_(table1.c.ID==table2.c.T1ID,table2.c.T1ID==1)).distinct()
self.assertEqual(res.count(), 1)
class SelfRefTest(ORMTest):
def define_tables(self, metadata):
global t1
t1 = Table('t1', metadata,
Column('id', Integer, primary_key=True),
Column('parent_id', Integer, ForeignKey('t1.id'))
)
def test_noautojoin(self):
class T(object):pass
mapper(T, t1, properties={'children':relation(T)})
sess = create_session(bind=testbase.db)
try:
sess.query(T).join('children').select_by(id=7)
assert False
except exceptions.InvalidRequestError, e:
assert str(e) == "Self-referential query on 'T.children (T)' property requires create_aliases=True argument.", str(e)
try:
sess.query(T).join(['children']).select_by(id=7)
assert False
except exceptions.InvalidRequestError, e:
assert str(e) == "Self-referential query on 'T.children (T)' property requires create_aliases=True argument.", str(e)
if __name__ == "__main__":
testbase.main()
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