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from . import _fixtures
from .inheritance import _poly_fixtures
from sqlalchemy import text
from sqlalchemy.orm import loading, Session, aliased, Bundle
from sqlalchemy.testing.assertions import eq_, assert_raises
from sqlalchemy.util import KeyedTuple
from sqlalchemy.testing import mock
# class GetFromIdentityTest(_fixtures.FixtureTest):
# class LoadOnIdentTest(_fixtures.FixtureTest):
# class InstanceProcessorTest(_fixture.FixtureTest):
class InstancesTest(_fixtures.FixtureTest):
run_setup_mappers = 'once'
run_inserts = 'once'
run_deletes = None
@classmethod
def setup_mappers(cls):
cls._setup_stock_mapping()
def test_cursor_close_w_failed_rowproc(self):
User = self.classes.User
s = Session()
q = s.query(User)
ctx = q._compile_context()
cursor = mock.Mock()
q._entities = [
mock.Mock(row_processor=mock.Mock(side_effect=Exception("boom")))
]
assert_raises(
Exception,
list, loading.instances(q, cursor, ctx)
)
assert cursor.close.called, "Cursor wasn't closed"
def test_query_load_entity(self):
User = self.classes.User
s = Session()
q = s.query(User).order_by(User.id)
rows = q.all()
eq_(
rows,
[
User(id=7, name='jack'),
User(id=8, name='ed'),
User(id=9, name='fred'),
User(id=10, name='chuck')
]
)
def test_query_load_columns(self):
User = self.classes.User
s = Session()
q = s.query(User.id, User.name).order_by(User.id)
rows = q.all()
eq_(
rows,
[
(7, 'jack'),
(8, 'ed'),
(9, 'fred'),
(10, 'chuck')
]
)
def test_query_load_bundles(self):
User = self.classes.User
s = Session()
q = s.query(Bundle('foo', User.id, User.name)).order_by(User.id)
rows = q.all()
eq_(
rows,
[
((7, 'jack'),),
((8, 'ed'),),
((9, 'fred'),),
((10, 'chuck'),)
]
)
def test_query_load_entity_from_statement(self):
User = self.classes.User
s = Session()
q = s.query(User).from_statement(
text("select name, id from users order by id"))
rows = q.all()
eq_(
rows,
[
User(id=7, name='jack'),
User(id=8, name='ed'),
User(id=9, name='fred'),
User(id=10, name='chuck')
]
)
def test_query_load_columns_from_statement(self):
User = self.classes.User
s = Session()
q = s.query(User.name, User.id).from_statement(
text("select name, id from users order by id"))
rows = q.all()
eq_(
rows,
[
('jack', 7),
('ed', 8),
('fred', 9),
('chuck', 10)
]
)
class _PolymorphicInstancesTest(_poly_fixtures._PolymorphicFixtureBase):
def test_query_load_entity(self):
Person, Engineer, Manager, Boss = (
_poly_fixtures.Person, _poly_fixtures.Engineer,
_poly_fixtures.Manager, _poly_fixtures.Boss)
s = Session()
q = s.query(Person).order_by(Person.person_id)
rows = q.all()
eq_(
rows,
[
Engineer(
name='dilbert', primary_language='java',
status='regular engineer'),
Engineer(
name='wally', primary_language='c++',
status='regular engineer'),
Boss(
name='pointy haired boss', golf_swing='fore',
manager_name='pointy', status='da boss'),
Manager(
name='dogbert', manager_name='dogbert',
status='regular manager'),
Engineer(
name='vlad', primary_language='cobol',
status='elbonian engineer')
]
)
class PolymorphicInstancesDeferredTest(
_poly_fixtures._Polymorphic, _PolymorphicInstancesTest):
"""test polymorphic loading with missing attributes on subclasses.
"""
class PolymorphicInstancesPolymorphicTest(
_poly_fixtures._PolymorphicPolymorphic, _PolymorphicInstancesTest):
"""test polymorphic loading with all attributes in the query.
"""
class MergeResultTest(_fixtures.FixtureTest):
run_setup_mappers = 'once'
run_inserts = 'once'
run_deletes = None
@classmethod
def setup_mappers(cls):
cls._setup_stock_mapping()
def _fixture(self):
User = self.classes.User
s = Session()
u1, u2, u3, u4 = User(id=1, name='u1'), User(id=2, name='u2'), \
User(id=7, name='u3'), User(id=8, name='u4')
s.query(User).filter(User.id.in_([7, 8])).all()
s.close()
return s, [u1, u2, u3, u4]
def test_single_entity(self):
s, (u1, u2, u3, u4) = self._fixture()
User = self.classes.User
q = s.query(User)
collection = [u1, u2, u3, u4]
it = loading.merge_result(
q,
collection
)
eq_(
[x.id for x in it],
[1, 2, 7, 8]
)
def test_single_column(self):
User = self.classes.User
s = Session()
q = s.query(User.id)
collection = [(1, ), (2, ), (7, ), (8, )]
it = loading.merge_result(
q,
collection
)
eq_(
list(it),
[(1, ), (2, ), (7, ), (8, )]
)
def test_entity_col_mix_plain_tuple(self):
s, (u1, u2, u3, u4) = self._fixture()
User = self.classes.User
q = s.query(User, User.id)
collection = [(u1, 1), (u2, 2), (u3, 7), (u4, 8)]
it = loading.merge_result(
q,
collection
)
it = list(it)
eq_(
[(x.id, y) for x, y in it],
[(1, 1), (2, 2), (7, 7), (8, 8)]
)
eq_(list(it[0].keys()), ['User', 'id'])
def test_entity_col_mix_keyed_tuple(self):
s, (u1, u2, u3, u4) = self._fixture()
User = self.classes.User
q = s.query(User, User.id)
kt = lambda *x: KeyedTuple(x, ['User', 'id'])
collection = [kt(u1, 1), kt(u2, 2), kt(u3, 7), kt(u4, 8)]
it = loading.merge_result(
q,
collection
)
it = list(it)
eq_(
[(x.id, y) for x, y in it],
[(1, 1), (2, 2), (7, 7), (8, 8)]
)
eq_(list(it[0].keys()), ['User', 'id'])
def test_none_entity(self):
s, (u1, u2, u3, u4) = self._fixture()
User = self.classes.User
ua = aliased(User)
q = s.query(User, ua)
kt = lambda *x: KeyedTuple(x, ['User', 'useralias'])
collection = [kt(u1, u2), kt(u1, None), kt(u2, u3)]
it = loading.merge_result(
q,
collection
)
eq_(
[
(x and x.id or None, y and y.id or None)
for x, y in it
],
[(u1.id, u2.id), (u1.id, None), (u2.id, u3.id)]
)
|
