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import contextlib
import itertools
from sqlalchemy import bindparam
from sqlalchemy import event
from sqlalchemy import exc as sa_exc
from sqlalchemy import func
from sqlalchemy import testing
from sqlalchemy.ext import baked
from sqlalchemy.orm import exc as orm_exc
from sqlalchemy.orm import relationship
from sqlalchemy.orm import Session
from sqlalchemy.orm import subqueryload
from sqlalchemy.orm.query import Query
from sqlalchemy.testing import assert_raises_message
from sqlalchemy.testing import eq_
from sqlalchemy.testing import is_
from sqlalchemy.testing import is_not
from sqlalchemy.testing import mock
from sqlalchemy.testing.fixtures import fixture_session
from test.orm import _fixtures
class BakedTest(_fixtures.FixtureTest):
run_setup_mappers = "once"
run_inserts = "once"
run_deletes = None
def setup_test(self):
self.bakery = baked.bakery()
class StateChangeTest(BakedTest):
@classmethod
def setup_mappers(cls):
User = cls.classes.User
cls.mapper_registry.map_imperatively(User, cls.tables.users)
def _assert_cache_key(self, key, elements):
eq_(key, tuple(elem.__code__ for elem in elements))
def test_initial_key(self):
User = self.classes.User
session = fixture_session()
def l1():
return session.query(User)
q1 = self.bakery(l1)
self._assert_cache_key(q1._cache_key, [l1])
eq_(q1.steps, [l1])
def test_inplace_add(self):
User = self.classes.User
session = fixture_session()
def l1():
return session.query(User)
def l2(q):
return q.filter(User.name == bindparam("name"))
q1 = self.bakery(l1)
self._assert_cache_key(q1._cache_key, [l1])
eq_(q1.steps, [l1])
q2 = q1.add_criteria(l2)
is_(q2, q1)
self._assert_cache_key(q1._cache_key, [l1, l2])
eq_(q1.steps, [l1, l2])
def test_inplace_add_operator(self):
User = self.classes.User
session = fixture_session()
def l1():
return session.query(User)
def l2(q):
return q.filter(User.name == bindparam("name"))
q1 = self.bakery(l1)
self._assert_cache_key(q1._cache_key, [l1])
q1 += l2
self._assert_cache_key(q1._cache_key, [l1, l2])
def test_chained_add(self):
User = self.classes.User
session = fixture_session()
def l1():
return session.query(User)
def l2(q):
return q.filter(User.name == bindparam("name"))
q1 = self.bakery(l1)
q2 = q1.with_criteria(l2)
is_not(q2, q1)
self._assert_cache_key(q1._cache_key, [l1])
self._assert_cache_key(q2._cache_key, [l1, l2])
def test_chained_add_operator(self):
User = self.classes.User
session = fixture_session()
def l1():
return session.query(User)
def l2(q):
return q.filter(User.name == bindparam("name"))
q1 = self.bakery(l1)
q2 = q1 + l2
is_not(q2, q1)
self._assert_cache_key(q1._cache_key, [l1])
self._assert_cache_key(q2._cache_key, [l1, l2])
class LikeQueryTest(BakedTest):
@classmethod
def setup_mappers(cls):
User = cls.classes.User
cls.mapper_registry.map_imperatively(User, cls.tables.users)
def test_first_no_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name == "asdf")
eq_(bq(fixture_session()).first(), None)
def test_first_multiple_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User.id))
bq += lambda q: q.filter(User.name.like("%ed%")).order_by(User.id)
eq_(bq(fixture_session()).first(), (8,))
def test_one_or_none_no_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name == "asdf")
eq_(bq(fixture_session()).one_or_none(), None)
def test_one_or_none_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name == "ed")
u1 = bq(fixture_session()).one_or_none()
eq_(u1.name, "ed")
def test_one_or_none_multiple_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name.like("%ed%"))
assert_raises_message(
orm_exc.MultipleResultsFound,
"Multiple rows were found when one or none was required",
bq(fixture_session()).one_or_none,
)
def test_one_no_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name == "asdf")
assert_raises_message(
orm_exc.NoResultFound,
"No row was found when one was required",
bq(fixture_session()).one,
)
def test_one_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name == "ed")
u1 = bq(fixture_session()).one()
eq_(u1.name, "ed")
def test_one_multiple_result(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.filter(User.name.like("%ed%"))
assert_raises_message(
orm_exc.MultipleResultsFound,
"Multiple rows were found when exactly one was required",
bq(fixture_session()).one,
)
def test_get(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
sess = fixture_session()
def go():
u1 = bq(sess).get(7)
eq_(u1.name, "jack")
self.assert_sql_count(testing.db, go, 1)
u1 = sess.get(User, 7) # noqa
def go():
u2 = bq(sess).get(7)
eq_(u2.name, "jack")
self.assert_sql_count(testing.db, go, 0)
def go():
u2 = bq(sess).get(8)
eq_(u2.name, "ed")
self.assert_sql_count(testing.db, go, 1)
def test_scalar(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User.id))
sess = fixture_session()
bq += lambda q: q.filter(User.id == 7)
eq_(bq(sess).scalar(), 7)
def test_count(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
sess = fixture_session()
eq_(bq(sess).count(), 4)
bq += lambda q: q.filter(User.id.in_([8, 9]))
eq_(bq(sess).count(), 2)
# original query still works
eq_(
{(u.id, u.name) for u in bq(sess).all()},
{(8, "ed"), (9, "fred")},
)
def test_count_with_bindparams(self):
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
sess = fixture_session()
eq_(bq(sess).count(), 4)
bq += lambda q: q.filter(User.name == bindparam("uname"))
# calling with *args
eq_(bq(sess).params(uname="fred").count(), 1)
# with multiple params, the **kwargs will be used
bq += lambda q: q.filter(User.id == bindparam("an_id"))
eq_(bq(sess).params(uname="fred", an_id=9).count(), 1)
eq_(
# wrong id, so 0 results:
bq(sess).params(uname="fred", an_id=8).count(),
0,
)
def test_get_pk_w_null(self):
"""test the re-implementation of logic to do get with IS NULL."""
class AddressUser:
pass
self.mapper_registry.map_imperatively(
AddressUser,
self.tables.users.outerjoin(self.tables.addresses),
properties={
"id": self.tables.users.c.id,
"address_id": self.tables.addresses.c.id,
},
)
bq = self.bakery(lambda s: s.query(AddressUser))
sess = fixture_session()
def go():
u1 = bq(sess).get((10, None))
eq_(u1.name, "chuck")
self.assert_sql_count(testing.db, go, 1)
u1 = sess.get(AddressUser, (10, None)) # noqa
def go():
u2 = bq(sess).get((10, None))
eq_(u2.name, "chuck")
self.assert_sql_count(testing.db, go, 0)
def test_get_includes_getclause(self):
# test issue #3597
User = self.classes.User
bq = self.bakery(lambda s: s.query(User))
for i in range(5):
sess = fixture_session()
u1 = bq(sess).get(7)
eq_(u1.name, "jack")
sess.close()
eq_(len(bq._bakery), 2)
# simulate race where mapper._get_clause
# may be generated more than once
from sqlalchemy import inspect
del inspect(User).__dict__["_get_clause"]
for i in range(5):
sess = fixture_session()
u1 = bq(sess).get(7)
eq_(u1.name, "jack")
sess.close()
# this went from 4 to 3 as a result of #6055. by giving a name
# to the bind param in mapper._get_clause, while the baked cache
# here grows by one element, the SQL compiled_cache no longer
# changes because the keys of the bindparam() objects are passed
# explicitly as params to the execute() call as a result of
# _load_on_pk_identity() (either the one in baked or the one in
# loading.py), which then puts them
# in column_keys which makes them part of the cache key. These
# were previously anon names, now they are explicit so they
# stay across resets
eq_(len(bq._bakery), 3)
class ResultPostCriteriaTest(BakedTest):
@classmethod
def setup_mappers(cls):
User = cls.classes.User
Address = cls.classes.Address
Order = cls.classes.Order
cls.mapper_registry.map_imperatively(
User,
cls.tables.users,
properties={
"addresses": relationship(
Address, order_by=cls.tables.addresses.c.id
),
"orders": relationship(Order, order_by=cls.tables.orders.c.id),
},
)
cls.mapper_registry.map_imperatively(Address, cls.tables.addresses)
cls.mapper_registry.map_imperatively(Order, cls.tables.orders)
@contextlib.contextmanager
def _fixture(self):
from sqlalchemy import event
User = self.classes.User
with testing.db.connect() as conn:
@event.listens_for(conn, "before_execute")
def before_execute(
conn, clauseelement, multiparams, params, execution_options
):
# execution options are kind of moving around a bit,
# test both places
assert (
"yes" in clauseelement._execution_options
or "yes" in execution_options
)
bq = self.bakery(lambda s: s.query(User.id).order_by(User.id))
sess = Session(conn)
yield sess, bq
def test_first(self):
with self._fixture() as (sess, bq):
result = bq(sess).with_post_criteria(
lambda q: q.execution_options(yes=True)
)
eq_(result.first(), (7,))
def test_iter(self):
with self._fixture() as (sess, bq):
result = bq(sess).with_post_criteria(
lambda q: q.execution_options(yes=True)
)
eq_(list(result)[0], (7,))
def test_spoiled(self):
with self._fixture() as (sess, bq):
result = bq.spoil()(sess).with_post_criteria(
lambda q: q.execution_options(yes=True)
)
eq_(list(result)[0], (7,))
def test_get(self):
User = self.classes.User
with self._fixture() as (sess, bq):
bq = self.bakery(lambda s: s.query(User))
result = bq(sess).with_post_criteria(
lambda q: q.execution_options(yes=True)
)
eq_(result.get(7), User(id=7))
class ResultTest(BakedTest):
__backend__ = True
@classmethod
def setup_mappers(cls):
User = cls.classes.User
Address = cls.classes.Address
Order = cls.classes.Order
cls.mapper_registry.map_imperatively(
User,
cls.tables.users,
properties={
"addresses": relationship(
Address, order_by=cls.tables.addresses.c.id
),
"orders": relationship(Order, order_by=cls.tables.orders.c.id),
},
)
cls.mapper_registry.map_imperatively(Address, cls.tables.addresses)
cls.mapper_registry.map_imperatively(Order, cls.tables.orders)
def test_cachekeys_on_constructor(self):
User = self.classes.User
queue = [7, 8]
def fn(s):
return s.query(User.id).filter_by(id=queue.pop(0))
bq1 = self.bakery(fn, 7)
bq2 = self.bakery(fn, 8)
for i in range(3):
session = fixture_session()
eq_(bq1(session).all(), [(7,)])
eq_(bq2(session).all(), [(8,)])
def test_no_steps(self):
User = self.classes.User
bq = self.bakery(
lambda s: s.query(User.id, User.name).order_by(User.id)
)
for i in range(3):
session = fixture_session()
eq_(
bq(session).all(),
[(7, "jack"), (8, "ed"), (9, "fred"), (10, "chuck")],
)
def test_different_limits(self):
User = self.classes.User
bq = self.bakery(
lambda s: s.query(User.id, User.name).order_by(User.id)
)
bq += lambda q: q.limit(bindparam("limit")).offset(bindparam("offset"))
session = fixture_session()
for i in range(4):
for limit, offset, exp in [
(2, 1, [(8, "ed"), (9, "fred")]),
(3, 0, [(7, "jack"), (8, "ed"), (9, "fred")]),
(1, 2, [(9, "fred")]),
]:
eq_(bq(session).params(limit=limit, offset=offset).all(), exp)
def test_disable_on_session(self):
User = self.classes.User
canary = mock.Mock()
def fn1(s):
canary.fn1()
return s.query(User.id, User.name).order_by(User.id)
def fn2(q):
canary.fn2()
return q.filter(User.id == bindparam("id"))
def fn3(q):
canary.fn3()
return q
for x in range(3):
bq = self.bakery(fn1)
bq += fn2
sess = fixture_session(enable_baked_queries=False)
eq_(bq.add_criteria(fn3)(sess).params(id=7).all(), [(7, "jack")])
eq_(
canary.mock_calls,
[
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
],
)
def test_spoiled_full_w_params(self):
User = self.classes.User
canary = mock.Mock()
def fn1(s):
canary.fn1()
return s.query(User.id, User.name).order_by(User.id)
def fn2(q):
canary.fn2()
return q.filter(User.id == bindparam("id"))
def fn3(q):
canary.fn3()
return q
for x in range(3):
bq = self.bakery(fn1)
bq += fn2
sess = fixture_session()
eq_(
bq.spoil(full=True).add_criteria(fn3)(sess).params(id=7).all(),
[(7, "jack")],
)
eq_(
canary.mock_calls,
[
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
],
)
def test_spoiled_half_w_params(self):
User = self.classes.User
canary = mock.Mock()
def fn1(s):
canary.fn1()
return s.query(User.id, User.name).order_by(User.id)
def fn2(q):
canary.fn2()
return q.filter(User.id == bindparam("id"))
def fn3(q):
canary.fn3()
return q
bq = self.bakery(fn1)
bq += fn2
for x in range(3):
bq = self.bakery(fn1)
bq += fn2
sess = fixture_session()
eq_(
bq.spoil().add_criteria(fn3)(sess).params(id=7).all(),
[(7, "jack")],
)
eq_(
canary.mock_calls,
[
mock.call.fn1(),
mock.call.fn2(),
mock.call.fn3(),
mock.call.fn3(),
mock.call.fn3(),
],
)
def test_w_new_entities(self):
"""Test that the query can have its entities modified in
an arbitrary callable, and that this new entity list is preserved
when the query is invoked.
"""
User = self.classes.User
bq = self.bakery(lambda s: s.query(User.id, User.name))
bq += lambda q: q._legacy_from_self().with_entities(
func.count(User.id)
)
for i in range(3):
session = fixture_session()
eq_(bq(session).all(), [(4,)])
def test_conditional_step(self):
"""Test a large series of conditionals and assert that
results remain correct between all of them within a series
of loops.
"""
User = self.classes.User
base_bq = self.bakery(lambda s: s.query(User.id, User.name))
base_bq += lambda q: q.order_by(User.id)
for i in range(4):
for cond1, cond2, cond3, cond4 in itertools.product(
*[(False, True) for j in range(4)]
):
bq = base_bq._clone()
if cond1:
bq += lambda q: q.filter(User.name != "jack")
if cond2:
bq += lambda q: q.join(User.addresses)
else:
bq += lambda q: q.outerjoin(User.addresses)
elif cond3:
bq += lambda q: q.filter(User.name.like("%ed%"))
else:
bq += lambda q: q.filter(User.name == "jack")
if cond4:
bq += lambda q: q._legacy_from_self().with_entities(
func.count(User.id)
)
sess = fixture_session()
result = bq(sess).all()
if cond4:
if cond1:
if cond2:
eq_(result, [(4,)])
else:
eq_(result, [(5,)])
elif cond3:
eq_(result, [(2,)])
else:
eq_(result, [(1,)])
else:
if cond1:
if cond2:
eq_(
result,
[(8, "ed"), (8, "ed"), (8, "ed"), (9, "fred")],
)
else:
eq_(
result,
[
(8, "ed"),
(8, "ed"),
(8, "ed"),
(9, "fred"),
(10, "chuck"),
],
)
elif cond3:
eq_(result, [(8, "ed"), (9, "fred")])
else:
eq_(result, [(7, "jack")])
sess.close()
def test_conditional_step_oneline(self):
User = self.classes.User
base_bq = self.bakery(lambda s: s.query(User.id, User.name))
base_bq += lambda q: q.order_by(User.id)
for i in range(4):
for cond1 in (False, True):
bq = base_bq._clone()
# we were using (filename, firstlineno) as cache key,
# which fails for this kind of thing!
bq += (
(lambda q: q.filter(User.name != "jack"))
if cond1
else (lambda q: q.filter(User.name == "jack"))
) # noqa
sess = fixture_session()
result = bq(sess).all()
if cond1:
eq_(result, [(8, "ed"), (9, "fred"), (10, "chuck")])
else:
eq_(result, [(7, "jack")])
sess.close()
def test_to_query_query(self):
User = self.classes.User
Address = self.classes.Address
sub_bq = self.bakery(lambda s: s.query(User.name))
sub_bq += (
lambda q: q.filter(User.id == Address.user_id)
.filter(User.name == "ed")
.correlate(Address)
)
main_bq = self.bakery(lambda s: s.query(Address.id))
main_bq += lambda q: q.filter(sub_bq.to_query(q).exists())
main_bq += lambda q: q.order_by(Address.id)
sess = fixture_session()
result = main_bq(sess).all()
eq_(result, [(2,), (3,), (4,)])
def test_to_query_session(self):
User = self.classes.User
Address = self.classes.Address
sub_bq = self.bakery(lambda s: s.query(User.name))
sub_bq += lambda q: q.filter(User.id == Address.user_id).correlate(
Address
)
main_bq = self.bakery(
lambda s: s.query(Address.id, sub_bq.to_query(s).scalar_subquery())
)
main_bq += lambda q: q.filter(
sub_bq.to_query(q).scalar_subquery() == "ed"
)
main_bq += lambda q: q.order_by(Address.id)
sess = fixture_session()
result = main_bq(sess).all()
eq_(result, [(2, "ed"), (3, "ed"), (4, "ed")])
def test_to_query_args(self):
User = self.classes.User
sub_bq = self.bakery(lambda s: s.query(User.name))
q = Query([], None)
assert_raises_message(
sa_exc.ArgumentError,
"Given Query needs to be associated with a Session",
sub_bq.to_query,
q,
)
assert_raises_message(
TypeError,
"Query or Session object expected, got .*'int'.*",
sub_bq.to_query,
5,
)
def test_subquery_eagerloading(self):
User = self.classes.User
Address = self.classes.Address
Order = self.classes.Order
self.bakery = baked.bakery()
base_bq = self.bakery(lambda s: s.query(User))
base_bq += lambda q: q.options(
subqueryload(User.addresses), subqueryload(User.orders)
)
base_bq += lambda q: q.order_by(User.id)
assert_result = [
User(
id=7,
addresses=[Address(id=1, email_address="jack@bean.com")],
orders=[Order(id=1), Order(id=3), Order(id=5)],
),
User(
id=8,
addresses=[
Address(id=2, email_address="ed@wood.com"),
Address(id=3, email_address="ed@bettyboop.com"),
Address(id=4, email_address="ed@lala.com"),
],
),
User(
id=9,
addresses=[Address(id=5)],
orders=[Order(id=2), Order(id=4)],
),
User(id=10, addresses=[]),
]
for i in range(4):
for cond1, cond2 in itertools.product(
*[(False, True) for j in range(2)]
):
bq = base_bq._clone()
sess = fixture_session()
if cond1:
bq += lambda q: q.filter(User.name == "jack")
else:
bq += lambda q: q.filter(User.name.like("%ed%"))
if cond2:
ct = func.count(Address.id).label("count")
subq = (
sess.query(ct, Address.user_id)
.group_by(Address.user_id)
.having(ct > 2)
.subquery()
)
bq += lambda q: q.join(subq)
if cond2:
if cond1:
def go():
result = bq(sess).all()
eq_([], result)
self.assert_sql_count(testing.db, go, 1)
else:
def go():
result = bq(sess).all()
eq_(assert_result[1:2], result)
self.assert_sql_count(testing.db, go, 3)
else:
if cond1:
def go():
result = bq(sess).all()
eq_(assert_result[0:1], result)
self.assert_sql_count(testing.db, go, 3)
else:
def go():
result = bq(sess).all()
eq_(assert_result[1:3], result)
self.assert_sql_count(testing.db, go, 3)
sess.close()
def test_subqueryload_post_context(self):
User = self.classes.User
Address = self.classes.Address
assert_result = [
User(
id=7, addresses=[Address(id=1, email_address="jack@bean.com")]
)
]
self.bakery = baked.bakery()
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.options(subqueryload(User.addresses))
bq += lambda q: q.order_by(User.id)
bq += lambda q: q.filter(User.name == bindparam("name"))
sess = fixture_session()
def set_params(q):
return q.params(name="jack")
# test that the changes we make using with_post_criteria()
# are also applied to the subqueryload query.
def go():
result = bq(sess).with_post_criteria(set_params).all()
eq_(assert_result, result)
self.assert_sql_count(testing.db, go, 2)
@testing.fixture()
def before_compile_nobake_fixture(self):
@event.listens_for(Query, "before_compile", retval=True)
def _modify_query(query):
query = query.enable_assertions(False)
return query
yield
event.remove(Query, "before_compile", _modify_query)
def test_subqueryload_post_context_w_cancelling_event(
self, before_compile_nobake_fixture
):
User = self.classes.User
Address = self.classes.Address
assert_result = [
User(
id=7, addresses=[Address(id=1, email_address="jack@bean.com")]
)
]
self.bakery = baked.bakery(size=3)
bq = self.bakery(lambda s: s.query(User))
bq += lambda q: q.options(subqueryload(User.addresses))
bq += lambda q: q.order_by(User.id)
bq += lambda q: q.filter(User.name == bindparam("name"))
sess = fixture_session()
def set_params(q):
return q.params(name="jack")
# test that the changes we make using with_post_criteria()
# are also applied to the subqueryload query.
def go():
result = bq(sess).with_post_criteria(set_params).all()
eq_(assert_result, result)
self.assert_sql_count(testing.db, go, 2)
# assert that the integration style illustrated in the dogpile.cache
# example works w/ baked
class CustomIntegrationTest(testing.AssertsCompiledSQL, BakedTest):
run_setup_mappers = "each"
def _o2m_fixture(self, lazy="select", **kw):
User = self.classes.User
Address = self.classes.Address
self.mapper_registry.map_imperatively(
User,
self.tables.users,
properties={
"addresses": relationship(
Address,
order_by=self.tables.addresses.c.id,
lazy=lazy,
**kw,
)
},
)
self.mapper_registry.map_imperatively(Address, self.tables.addresses)
return User, Address
def _query_fixture(self):
from sqlalchemy.orm.query import Query
class CachingQuery(Query):
cache = {}
def set_cache_key(self, key):
return self.execution_options(_cache_key=key)
def set_cache_key_for_path(self, path, key):
return self.execution_options(**{"_cache_key_%s" % path: key})
def get_value(cache_key, cache, createfunc):
if cache_key in cache:
return cache[cache_key]()
else:
cache[cache_key] = retval = createfunc().freeze()
return retval()
s1 = fixture_session(query_cls=CachingQuery)
@event.listens_for(s1, "do_orm_execute", retval=True)
def do_orm_execute(orm_context):
ckey = None
for opt in orm_context.user_defined_options:
ckey = opt.get_cache_key(orm_context)
if ckey:
break
else:
if "_cache_key" in orm_context.execution_options:
ckey = orm_context.execution_options["_cache_key"]
if ckey is not None:
return get_value(
ckey,
CachingQuery.cache,
orm_context.invoke_statement,
)
return s1
def _option_fixture(self):
from sqlalchemy.orm.interfaces import UserDefinedOption
class RelationshipCache(UserDefinedOption):
inherit_cache = True
propagate_to_loaders = True
def get_cache_key(self, orm_context):
if orm_context.loader_strategy_path:
return "user7_addresses"
else:
return None
return RelationshipCache()
def test_non_baked(self):
User, Address = self._o2m_fixture()
sess = self._query_fixture()
q = sess._query_cls
eq_(q.cache, {})
q = sess.query(User).filter(User.id == 7).set_cache_key("user7")
eq_(q.all(), [User(id=7, addresses=[Address(id=1)])])
eq_(list(q.cache), ["user7"])
eq_(q.all(), [User(id=7, addresses=[Address(id=1)])])
def test_non_baked_tuples(self):
User, Address = self._o2m_fixture()
sess = self._query_fixture()
q = sess._query_cls
eq_(q.cache, {})
q = sess.query(User).filter(User.id == 7).set_cache_key("user7")
eq_(
sess.execute(q.statement).all(),
[(User(id=7, addresses=[Address(id=1)]),)],
)
eq_(list(q.cache), ["user7"])
eq_(
sess.execute(q.statement).all(),
[(User(id=7, addresses=[Address(id=1)]),)],
)
def test_use_w_baked(self):
User, Address = self._o2m_fixture()
sess = self._query_fixture()
q = sess._query_cls
eq_(q.cache, {})
base_bq = self.bakery(lambda s: s.query(User))
base_bq += lambda q: q.filter(User.id == 7)
base_bq += lambda q: q.set_cache_key("user7")
eq_(base_bq(sess).all(), [User(id=7, addresses=[Address(id=1)])])
eq_(list(q.cache), ["user7"])
eq_(base_bq(sess).all(), [User(id=7, addresses=[Address(id=1)])])
def test_plain_w_baked_lazyload(self):
User, Address = self._o2m_fixture()
opt = self._option_fixture()
sess = self._query_fixture()
q = sess._query_cls
eq_(q.cache, {})
q = sess.query(User).filter(User.id == 7).options(opt)
u = q.first()
eq_(u.addresses, [Address(id=1)])
eq_(list(q.cache), ["user7_addresses"])
sess.close()
# ensure caching logic works after query has been baked
q.cache.clear()
u = q.first()
eq_(u.addresses, [Address(id=1)])
eq_(list(q.cache), ["user7_addresses"])
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