
from sqlalchemy.testing import eq_, assert_raises, \
    assert_raises_message, expect_warnings, is_
from sqlalchemy.testing import assertions
from sqlalchemy.ext import declarative as decl
from sqlalchemy import exc
import sqlalchemy as sa
from sqlalchemy import testing, util
from sqlalchemy import MetaData, Integer, String, ForeignKey, \
    ForeignKeyConstraint, Index
from sqlalchemy.testing.schema import Table, Column
from sqlalchemy.orm import relationship, create_session, class_mapper, \
    joinedload, configure_mappers, backref, clear_mappers, \
    column_property, composite, Session, properties
from sqlalchemy.util import with_metaclass
from sqlalchemy.ext.declarative import declared_attr, synonym_for
from sqlalchemy.testing import fixtures, mock
from sqlalchemy.orm.events import MapperEvents
from sqlalchemy.orm import mapper
from sqlalchemy import event
from sqlalchemy import inspect

Base = None

User = Address = None


class DeclarativeTestBase(fixtures.TestBase,
                          testing.AssertsExecutionResults,
                          testing.AssertsCompiledSQL):
    __dialect__ = 'default'

    def setup(self):
        global Base
        Base = decl.declarative_base(testing.db)

    def teardown(self):
        Session.close_all()
        clear_mappers()
        Base.metadata.drop_all()


class DeclarativeTest(DeclarativeTestBase):

    def test_basic(self):
        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'users'

            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship("Address", backref="user")

        class Address(Base, fixtures.ComparableEntity):
            __tablename__ = 'addresses'

            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50), key='_email')
            user_id = Column('user_id', Integer, ForeignKey('users.id'),
                             key='_user_id')

        Base.metadata.create_all()

        eq_(Address.__table__.c['id'].name, 'id')
        eq_(Address.__table__.c['_email'].name, 'email')
        eq_(Address.__table__.c['_user_id'].name, 'user_id')

        u1 = User(name='u1', addresses=[
            Address(email='one'),
            Address(email='two'),
        ])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()

        eq_(sess.query(User).all(), [User(name='u1', addresses=[
            Address(email='one'),
            Address(email='two'),
        ])])

        a1 = sess.query(Address).filter(Address.email == 'two').one()
        eq_(a1, Address(email='two'))
        eq_(a1.user, User(name='u1'))

    def test_unicode_string_resolve(self):
        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'users'

            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship(util.u("Address"), backref="user")

        class Address(Base, fixtures.ComparableEntity):
            __tablename__ = 'addresses'

            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50), key='_email')
            user_id = Column('user_id', Integer, ForeignKey('users.id'),
                             key='_user_id')

        assert User.addresses.property.mapper.class_ is Address

    def test_unicode_string_resolve_backref(self):
        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'users'

            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

        class Address(Base, fixtures.ComparableEntity):
            __tablename__ = 'addresses'

            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50), key='_email')
            user_id = Column('user_id', Integer, ForeignKey('users.id'),
                             key='_user_id')
            user = relationship(
                    User,
                    backref=backref("addresses",
                                    order_by=util.u("Address.email")))

        assert Address.user.property.mapper.class_ is User

    def test_no_table(self):
        def go():
            class User(Base):
                id = Column('id', Integer, primary_key=True)

        assert_raises_message(sa.exc.InvalidRequestError,
                              'does not have a __table__', go)

    def test_table_args_empty_dict(self):

        class MyModel(Base):
            __tablename__ = 'test'
            id = Column(Integer, primary_key=True)
            __table_args__ = {}

    def test_table_args_empty_tuple(self):

        class MyModel(Base):
            __tablename__ = 'test'
            id = Column(Integer, primary_key=True)
            __table_args__ = ()

    def test_cant_add_columns(self):
        t = Table(
            't', Base.metadata,
            Column('id', Integer, primary_key=True),
            Column('data', String))

        def go():
            class User(Base):
                __table__ = t
                foo = Column(Integer, primary_key=True)

        # can't specify new columns not already in the table

        assert_raises_message(sa.exc.ArgumentError,
                              "Can't add additional column 'foo' when "
                              "specifying __table__", go)

        # regular re-mapping works tho

        class Bar(Base):
            __table__ = t
            some_data = t.c.data

        assert class_mapper(Bar).get_property('some_data').columns[0] \
            is t.c.data

    def test_lower_case_c_column_warning(self):
        with assertions.expect_warnings(
            r"Attribute 'x' on class <class .*Foo.* appears to be a "
            r"non-schema 'sqlalchemy.sql.column\(\)' object; ",
        ):
            class Foo(Base):
                __tablename__ = 'foo'

                id = Column(Integer, primary_key=True)
                x = sa.sql.expression.column(Integer)
                y = Column(Integer)

        class MyMixin(object):
            x = sa.sql.expression.column(Integer)
            y = Column(Integer)

        with assertions.expect_warnings(
            r"Attribute 'x' on class <class .*MyMixin.* appears to be a "
            r"non-schema 'sqlalchemy.sql.column\(\)' object; ",
        ):
            class Foo2(MyMixin, Base):
                __tablename__ = 'foo2'

                id = Column(Integer, primary_key=True)

        with assertions.expect_warnings(
            r"Attribute 'x' on class <class .*Foo3.* appears to be a "
            r"non-schema 'sqlalchemy.sql.column\(\)' object; ",
        ):
            class Foo3(Base):
                __tablename__ = 'foo3'

                id = Column(Integer, primary_key=True)

                @declared_attr
                def x(cls):
                    return sa.sql.expression.column(Integer)

                y = Column(Integer)

        with assertions.expect_warnings(
            r"Attribute 'x' on class <class .*Foo4.* appears to be a "
            r"non-schema 'sqlalchemy.sql.column\(\)' object; ",
        ):
            class MyMixin2(object):
                @declared_attr
                def x(cls):
                    return sa.sql.expression.column(Integer)

                y = Column(Integer)

            class Foo4(MyMixin2, Base):
                __tablename__ = 'foo4'

                id = Column(Integer, primary_key=True)

    def test_column_named_twice(self):
        def go():
            class Foo(Base):
                __tablename__ = 'foo'

                id = Column(Integer, primary_key=True)
                x = Column('x', Integer)
                y = Column('x', Integer)
        assert_raises_message(
            sa.exc.SAWarning,
            "On class 'Foo', Column object 'x' named directly multiple times, "
            "only one will be used: x, y",
            go
        )

    def test_column_repeated_under_prop(self):
        def go():
            class Foo(Base):
                __tablename__ = 'foo'

                id = Column(Integer, primary_key=True)
                x = Column('x', Integer)
                y = column_property(x)
                z = Column('x', Integer)

        assert_raises_message(
            sa.exc.SAWarning,
            "On class 'Foo', Column object 'x' named directly multiple times, "
            "only one will be used: x, y, z",
            go
        )

    def test_relationship_level_msg_for_invalid_callable(self):
        class A(Base):
            __tablename__ = 'a'
            id = Column(Integer, primary_key=True)

        class B(Base):
            __tablename__ = 'b'
            id = Column(Integer, primary_key=True)
            a_id = Column(Integer, ForeignKey('a.id'))
            a = relationship('a')
        assert_raises_message(
            sa.exc.ArgumentError,
            "relationship 'a' expects a class or a mapper "
            "argument .received: .*Table",
            configure_mappers
        )

    def test_relationship_level_msg_for_invalid_object(self):
        class A(Base):
            __tablename__ = 'a'
            id = Column(Integer, primary_key=True)

        class B(Base):
            __tablename__ = 'b'
            id = Column(Integer, primary_key=True)
            a_id = Column(Integer, ForeignKey('a.id'))
            a = relationship(A.__table__)
        assert_raises_message(
            sa.exc.ArgumentError,
            "relationship 'a' expects a class or a mapper "
            "argument .received: .*Table",
            configure_mappers
        )

    def test_difficult_class(self):
        """test no getattr() errors with a customized class"""

        # metaclass to mock the way zope.interface breaks getattr()
        class BrokenMeta(type):

            def __getattribute__(self, attr):
                if attr == 'xyzzy':
                    raise AttributeError('xyzzy')
                else:
                    return object.__getattribute__(self, attr)

        # even though this class has an xyzzy attribute, getattr(cls,"xyzzy")
        # fails
        class BrokenParent(with_metaclass(BrokenMeta)):
            xyzzy = "magic"

        # _as_declarative() inspects obj.__class__.__bases__
        class User(BrokenParent, fixtures.ComparableEntity):
            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

        decl.instrument_declarative(User, {}, Base.metadata)

    def test_reserved_identifiers(self):
        def go1():
            class User1(Base):
                __tablename__ = 'user1'
                id = Column(Integer, primary_key=True)
                metadata = Column(Integer)

        def go2():
            class User2(Base):
                __tablename__ = 'user2'
                id = Column(Integer, primary_key=True)
                metadata = relationship("Address")

        for go in (go1, go2):
            assert_raises_message(
                exc.InvalidRequestError,
                "Attribute name 'metadata' is reserved "
                "for the MetaData instance when using a "
                "declarative base class.",
                go
            )

    def test_undefer_column_name(self):
        # TODO: not sure if there was an explicit
        # test for this elsewhere
        foo = Column(Integer)
        eq_(str(foo), '(no name)')
        eq_(foo.key, None)
        eq_(foo.name, None)
        decl.base._undefer_column_name('foo', foo)
        eq_(str(foo), 'foo')
        eq_(foo.key, 'foo')
        eq_(foo.name, 'foo')

    def test_recompile_on_othermapper(self):
        """declarative version of the same test in mappers.py"""

        from sqlalchemy.orm import mapperlib

        class User(Base):
            __tablename__ = 'users'

            id = Column('id', Integer, primary_key=True)
            name = Column('name', String(50))

        class Address(Base):
            __tablename__ = 'addresses'

            id = Column('id', Integer, primary_key=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))
            user = relationship("User", primaryjoin=user_id == User.id,
                                backref="addresses")

        assert mapperlib.Mapper._new_mappers is True
        u = User()  # noqa
        assert User.addresses
        assert mapperlib.Mapper._new_mappers is False

    def test_string_dependency_resolution(self):
        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column(String(50))
            addresses = relationship(
                'Address',
                order_by='desc(Address.email)',
                primaryjoin='User.id==Address.user_id',
                foreign_keys='[Address.user_id]',
                backref=backref('user',
                                primaryjoin='User.id==Address.user_id',
                                foreign_keys='[Address.user_id]'))

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50))
            user_id = Column(Integer)  # note no foreign key

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(
            name='ed', addresses=[
                Address(email='abc'),
                Address(email='def'), Address(email='xyz')])
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).filter(User.name == 'ed').one(),
            User(name='ed', addresses=[
                Address(email='xyz'),
                Address(email='def'), Address(email='abc')]))

        class Foo(Base, fixtures.ComparableEntity):

            __tablename__ = 'foo'
            id = Column(Integer, primary_key=True)
            rel = relationship('User',
                               primaryjoin='User.addresses==Foo.id')

        assert_raises_message(exc.InvalidRequestError,
                              "'addresses' is not an instance of "
                              "ColumnProperty", configure_mappers)

    def test_string_dependency_resolution_synonym(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column(String(50))

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='ed')
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).filter(User.name == 'ed').one(),
            User(name='ed'))

        class Foo(Base, fixtures.ComparableEntity):

            __tablename__ = 'foo'
            id = Column(Integer, primary_key=True)
            _user_id = Column(Integer)
            rel = relationship('User',
                               uselist=False,
                               foreign_keys=[User.id],
                               primaryjoin='Foo.user_id==User.id')

            @synonym_for('_user_id')
            @property
            def user_id(self):
                return self._user_id

        foo = Foo()
        foo.rel = u1
        assert foo.rel == u1

    def test_string_dependency_resolution_orm_descriptor(self):
        from sqlalchemy.ext.hybrid import hybrid_property

        class User(Base):
            __tablename__ = 'user'
            id = Column(Integer, primary_key=True)
            firstname = Column(String(50))
            lastname = Column(String(50))
            game_id = Column(Integer, ForeignKey('game.id'))

            @hybrid_property
            def fullname(self):
                return self.firstname + " " + self.lastname

        class Game(Base):
            __tablename__ = 'game'
            id = Column(Integer, primary_key=True)
            name = Column(String(50))
            users = relationship("User", order_by="User.fullname")

        s = Session()
        self.assert_compile(
            s.query(Game).options(joinedload(Game.users)),
            "SELECT game.id AS game_id, game.name AS game_name, "
            "user_1.id AS user_1_id, user_1.firstname AS user_1_firstname, "
            "user_1.lastname AS user_1_lastname, "
            "user_1.game_id AS user_1_game_id "
            "FROM game LEFT OUTER JOIN \"user\" AS user_1 ON game.id = "
            "user_1.game_id ORDER BY "
            "user_1.firstname || :firstname_1 || user_1.lastname"
        )

    def test_string_dependency_resolution_asselectable(self):
        class A(Base):
            __tablename__ = 'a'

            id = Column(Integer, primary_key=True)
            b_id = Column(ForeignKey('b.id'))

            d = relationship(
                "D",
                secondary="join(B, D, B.d_id == D.id)."
                "join(C, C.d_id == D.id)",
                primaryjoin="and_(A.b_id == B.id, A.id == C.a_id)",
                secondaryjoin="D.id == B.d_id",
            )

        class B(Base):
            __tablename__ = 'b'

            id = Column(Integer, primary_key=True)
            d_id = Column(ForeignKey('d.id'))

        class C(Base):
            __tablename__ = 'c'

            id = Column(Integer, primary_key=True)
            a_id = Column(ForeignKey('a.id'))
            d_id = Column(ForeignKey('d.id'))

        class D(Base):
            __tablename__ = 'd'

            id = Column(Integer, primary_key=True)
        s = Session()
        self.assert_compile(
            s.query(A).join(A.d),
            "SELECT a.id AS a_id, a.b_id AS a_b_id FROM a JOIN "
            "(b AS b_1 JOIN d AS d_1 ON b_1.d_id = d_1.id "
            "JOIN c AS c_1 ON c_1.d_id = d_1.id) ON a.b_id = b_1.id "
            "AND a.id = c_1.a_id JOIN d ON d.id = b_1.d_id",
        )

    def test_string_dependency_resolution_no_table(self):

        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column(String(50))

        class Bar(Base, fixtures.ComparableEntity):
            __tablename__ = 'bar'
            id = Column(Integer, primary_key=True)
            rel = relationship('User',
                               primaryjoin='User.id==Bar.__table__.id')

        assert_raises_message(exc.InvalidRequestError,
                              "does not have a mapped column named "
                              "'__table__'", configure_mappers)

    def test_string_w_pj_annotations(self):

        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column(String(50))

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50))
            user_id = Column(Integer)
            user = relationship(
                "User",
                primaryjoin="remote(User.id)==foreign(Address.user_id)"
            )

        eq_(
            Address.user.property._join_condition.local_remote_pairs,
            [(Address.__table__.c.user_id, User.__table__.c.id)]
        )

    def test_string_dependency_resolution_no_magic(self):
        """test that full tinkery expressions work as written"""

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True)
            addresses = relationship(
                'Address',
                primaryjoin='User.id==Address.user_id.prop.columns[0]')

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True)
            user_id = Column(Integer, ForeignKey('users.id'))

        configure_mappers()
        eq_(str(User.addresses.prop.primaryjoin),
            'users.id = addresses.user_id')

    def test_string_dependency_resolution_module_qualified(self):
        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True)
            addresses = relationship(
                '%s.Address' % __name__,
                primaryjoin='%s.User.id==%s.Address.user_id.prop.columns[0]'
                % (__name__, __name__))

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True)
            user_id = Column(Integer, ForeignKey('users.id'))

        configure_mappers()
        eq_(str(User.addresses.prop.primaryjoin),
            'users.id = addresses.user_id')

    def test_string_dependency_resolution_in_backref(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True)
            name = Column(String(50))
            addresses = relationship('Address',
                                     primaryjoin='User.id==Address.user_id',
                                     backref='user')

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True)
            email = Column(String(50))
            user_id = Column(Integer, ForeignKey('users.id'))

        configure_mappers()
        eq_(str(User.addresses.property.primaryjoin),
            str(Address.user.property.primaryjoin))

    def test_string_dependency_resolution_tables(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True)
            name = Column(String(50))
            props = relationship('Prop', secondary='user_to_prop',
                                 primaryjoin='User.id==user_to_prop.c.u'
                                 'ser_id',
                                 secondaryjoin='user_to_prop.c.prop_id='
                                 '=Prop.id', backref='users')

        class Prop(Base, fixtures.ComparableEntity):

            __tablename__ = 'props'
            id = Column(Integer, primary_key=True)
            name = Column(String(50))

        user_to_prop = Table(
            'user_to_prop', Base.metadata,
            Column('user_id', Integer, ForeignKey('users.id')),
            Column('prop_id', Integer, ForeignKey('props.id')))

        configure_mappers()
        assert class_mapper(User).get_property('props').secondary \
            is user_to_prop

    def test_string_dependency_resolution_schemas(self):
        Base = decl.declarative_base()

        class User(Base):

            __tablename__ = 'users'
            __table_args__ = {'schema': 'fooschema'}

            id = Column(Integer, primary_key=True)
            name = Column(String(50))
            props = relationship(
                'Prop', secondary='fooschema.user_to_prop',
                primaryjoin='User.id==fooschema.user_to_prop.c.user_id',
                secondaryjoin='fooschema.user_to_prop.c.prop_id==Prop.id',
                backref='users')

        class Prop(Base):

            __tablename__ = 'props'
            __table_args__ = {'schema': 'fooschema'}

            id = Column(Integer, primary_key=True)
            name = Column(String(50))

        user_to_prop = Table(
            'user_to_prop', Base.metadata,
            Column('user_id', Integer, ForeignKey('fooschema.users.id')),
            Column('prop_id', Integer, ForeignKey('fooschema.props.id')),
            schema='fooschema')
        configure_mappers()

        assert class_mapper(User).get_property('props').secondary \
            is user_to_prop

    def test_string_dependency_resolution_annotations(self):
        Base = decl.declarative_base()

        class Parent(Base):
            __tablename__ = 'parent'
            id = Column(Integer, primary_key=True)
            name = Column(String)
            children = relationship(
                "Child",
                primaryjoin="Parent.name=="
                "remote(foreign(func.lower(Child.name_upper)))"
            )

        class Child(Base):
            __tablename__ = 'child'
            id = Column(Integer, primary_key=True)
            name_upper = Column(String)

        configure_mappers()
        eq_(
            Parent.children.property._calculated_foreign_keys,
            set([Child.name_upper.property.columns[0]])
        )

    def test_shared_class_registry(self):
        reg = {}
        Base1 = decl.declarative_base(testing.db, class_registry=reg)
        Base2 = decl.declarative_base(testing.db, class_registry=reg)

        class A(Base1):
            __tablename__ = 'a'
            id = Column(Integer, primary_key=True)

        class B(Base2):
            __tablename__ = 'b'
            id = Column(Integer, primary_key=True)
            aid = Column(Integer, ForeignKey(A.id))
            as_ = relationship("A")

        assert B.as_.property.mapper.class_ is A

    def test_uncompiled_attributes_in_relationship(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50))
            user_id = Column(Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column(String(50))
            addresses = relationship('Address', order_by=Address.email,
                                     foreign_keys=Address.user_id,
                                     remote_side=Address.user_id)

        # get the mapper for User.   User mapper will compile,
        # "addresses" relationship will call upon Address.user_id for
        # its clause element.  Address.user_id is a _CompileOnAttr,
        # which then calls class_mapper(Address).  But !  We're already
        # "in compilation", but class_mapper(Address) needs to
        # initialize regardless, or COA's assertion fails and things
        # generally go downhill from there.

        class_mapper(User)
        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='ed', addresses=[
            Address(email='abc'),
            Address(email='xyz'), Address(email='def')])
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).filter(User.name == 'ed').one(),
            User(name='ed', addresses=[
                Address(email='abc'),
                Address(email='def'), Address(email='xyz')]))

    def test_nice_dependency_error(self):

        class User(Base):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True)
            addresses = relationship('Address')

        class Address(Base):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True)
            foo = sa.orm.column_property(User.id == 5)

        # this used to raise an error when accessing User.id but that's
        # no longer the case since we got rid of _CompileOnAttr.

        assert_raises(sa.exc.ArgumentError, configure_mappers)

    def test_nice_dependency_error_works_with_hasattr(self):

        class User(Base):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True)
            addresses = relationship('Address')

        # hasattr() on a compile-loaded attribute
        try:
            hasattr(User.addresses, 'property')
        except exc.InvalidRequestError:
            assert sa.util.compat.py32

        # the exception is preserved.  Remains the
        # same through repeated calls.
        for i in range(3):
            assert_raises_message(
                sa.exc.InvalidRequestError,
                "^One or more mappers failed to initialize"
                " - can't proceed with initialization of other mappers. "
                r"Triggering mapper: 'Mapper\|User\|users'. "
                "Original exception was: When initializing.*",
                configure_mappers)

    def test_custom_base(self):
        class MyBase(object):

            def foobar(self):
                return "foobar"
        Base = decl.declarative_base(cls=MyBase)
        assert hasattr(Base, 'metadata')
        assert Base().foobar() == "foobar"

    def test_uses_get_on_class_col_fk(self):

        # test [ticket:1492]

        class Master(Base):

            __tablename__ = 'master'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)

        class Detail(Base):

            __tablename__ = 'detail'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            master_id = Column(None, ForeignKey(Master.id))
            master = relationship(Master)

        Base.metadata.create_all()
        configure_mappers()
        assert class_mapper(Detail).get_property('master'
                                                 ).strategy.use_get
        m1 = Master()
        d1 = Detail(master=m1)
        sess = create_session()
        sess.add(d1)
        sess.flush()
        sess.expunge_all()
        d1 = sess.query(Detail).first()
        m1 = sess.query(Master).first()

        def go():
            assert d1.master

        self.assert_sql_count(testing.db, go, 0)

    def test_index_doesnt_compile(self):
        class User(Base):
            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True)
            name = Column('name', String(50))
            error = relationship("Address")

        i = Index('my_index', User.name)

        # compile fails due to the nonexistent Addresses relationship
        assert_raises(sa.exc.InvalidRequestError, configure_mappers)

        # index configured
        assert i in User.__table__.indexes
        assert User.__table__.c.id not in set(i.columns)
        assert User.__table__.c.name in set(i.columns)

        # tables create fine
        Base.metadata.create_all()

    def test_add_prop(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)

        User.name = Column('name', String(50))
        User.addresses = relationship('Address', backref='user')

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)

        Address.email = Column(String(50), key='_email')
        Address.user_id = Column('user_id', Integer,
                                 ForeignKey('users.id'), key='_user_id')
        Base.metadata.create_all()
        eq_(Address.__table__.c['id'].name, 'id')
        eq_(Address.__table__.c['_email'].name, 'email')
        eq_(Address.__table__.c['_user_id'].name, 'user_id')
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(
                name='u1',
                addresses=[Address(email='one'), Address(email='two')])])
        a1 = sess.query(Address).filter(Address.email == 'two').one()
        eq_(a1, Address(email='two'))
        eq_(a1.user, User(name='u1'))

    def test_alt_name_attr_subclass_column_inline(self):
        # [ticket:2900]
        class A(Base):
            __tablename__ = 'a'
            id = Column('id', Integer, primary_key=True)
            data = Column('data')

        class ASub(A):
            brap = A.data
        assert ASub.brap.property is A.data.property
        assert isinstance(
            ASub.brap.original_property, properties.SynonymProperty)

    def test_alt_name_attr_subclass_relationship_inline(self):
        # [ticket:2900]
        class A(Base):
            __tablename__ = 'a'
            id = Column('id', Integer, primary_key=True)
            b_id = Column(Integer, ForeignKey('b.id'))
            b = relationship("B", backref="as_")

        class B(Base):
            __tablename__ = 'b'
            id = Column('id', Integer, primary_key=True)

        configure_mappers()

        class ASub(A):
            brap = A.b
        assert ASub.brap.property is A.b.property
        assert isinstance(
            ASub.brap.original_property, properties.SynonymProperty)
        ASub(brap=B())

    def test_alt_name_attr_subclass_column_attrset(self):
        # [ticket:2900]
        class A(Base):
            __tablename__ = 'a'
            id = Column('id', Integer, primary_key=True)
            data = Column('data')
        A.brap = A.data
        assert A.brap.property is A.data.property
        assert isinstance(A.brap.original_property, properties.SynonymProperty)

    def test_alt_name_attr_subclass_relationship_attrset(self):
        # [ticket:2900]
        class A(Base):
            __tablename__ = 'a'
            id = Column('id', Integer, primary_key=True)
            b_id = Column(Integer, ForeignKey('b.id'))
            b = relationship("B", backref="as_")
        A.brap = A.b

        class B(Base):
            __tablename__ = 'b'
            id = Column('id', Integer, primary_key=True)

        assert A.brap.property is A.b.property
        assert isinstance(A.brap.original_property, properties.SynonymProperty)
        A(brap=B())

    def test_eager_order_by(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', order_by=Address.email)

        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='two'),
                                        Address(email='one')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).options(joinedload(User.addresses)).all(),
            [User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])])

    def test_order_by_multi(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address',
                                     order_by=(Address.email, Address.id))

        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='two'),
                                        Address(email='one')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        u = sess.query(User).filter(User.name == 'u1').one()
        u.addresses

    def test_as_declarative(self):

        class User(fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', backref='user')

        class Address(fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        reg = {}
        decl.instrument_declarative(User, reg, Base.metadata)
        decl.instrument_declarative(Address, reg, Base.metadata)
        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(
                name='u1',
                addresses=[Address(email='one'), Address(email='two')])])

    def test_custom_mapper_attribute(self):

        def mymapper(cls, tbl, **kwargs):
            m = sa.orm.mapper(cls, tbl, **kwargs)
            m.CHECK = True
            return m

        base = decl.declarative_base()

        class Foo(base):
            __tablename__ = 'foo'
            __mapper_cls__ = mymapper
            id = Column(Integer, primary_key=True)

        eq_(Foo.__mapper__.CHECK, True)

    def test_custom_mapper_argument(self):

        def mymapper(cls, tbl, **kwargs):
            m = sa.orm.mapper(cls, tbl, **kwargs)
            m.CHECK = True
            return m

        base = decl.declarative_base(mapper=mymapper)

        class Foo(base):
            __tablename__ = 'foo'
            id = Column(Integer, primary_key=True)

        eq_(Foo.__mapper__.CHECK, True)

    def test_oops(self):

        with testing.expect_warnings(
            "Ignoring declarative-like tuple value of "
                "attribute 'name'"):

            class User(Base, fixtures.ComparableEntity):

                __tablename__ = 'users'
                id = Column('id', Integer, primary_key=True)
                name = Column('name', String(50)),

    def test_table_args_no_dict(self):

        class Foo1(Base):

            __tablename__ = 'foo'
            __table_args__ = ForeignKeyConstraint(['id'], ['foo.bar']),
            id = Column('id', Integer, primary_key=True)
            bar = Column('bar', Integer)

        assert Foo1.__table__.c.id.references(Foo1.__table__.c.bar)

    def test_table_args_type(self):
        def err():
            class Foo1(Base):

                __tablename__ = 'foo'
                __table_args__ = ForeignKeyConstraint(['id'], ['foo.id'
                                                               ])
                id = Column('id', Integer, primary_key=True)
        assert_raises_message(sa.exc.ArgumentError,
                              '__table_args__ value must be a tuple, ', err)

    def test_table_args_none(self):

        class Foo2(Base):

            __tablename__ = 'foo'
            __table_args__ = None
            id = Column('id', Integer, primary_key=True)

        assert Foo2.__table__.kwargs == {}

    def test_table_args_dict_format(self):

        class Foo2(Base):

            __tablename__ = 'foo'
            __table_args__ = {'mysql_engine': 'InnoDB'}
            id = Column('id', Integer, primary_key=True)

        assert Foo2.__table__.kwargs['mysql_engine'] == 'InnoDB'

    def test_table_args_tuple_format(self):
        class Foo2(Base):

            __tablename__ = 'foo'
            __table_args__ = {'mysql_engine': 'InnoDB'}
            id = Column('id', Integer, primary_key=True)

        class Bar(Base):

            __tablename__ = 'bar'
            __table_args__ = ForeignKeyConstraint(['id'], ['foo.id']), \
                {'mysql_engine': 'InnoDB'}
            id = Column('id', Integer, primary_key=True)

        assert Bar.__table__.c.id.references(Foo2.__table__.c.id)
        assert Bar.__table__.kwargs['mysql_engine'] == 'InnoDB'

    def test_table_cls_attribute(self):
        class Foo(Base):
            __tablename__ = "foo"

            @classmethod
            def __table_cls__(cls, *arg, **kw):
                name = arg[0]
                return Table(name + 'bat', *arg[1:], **kw)

            id = Column(Integer, primary_key=True)

        eq_(Foo.__table__.name, "foobat")

    def test_table_cls_attribute_return_none(self):
        from sqlalchemy.schema import Column, PrimaryKeyConstraint

        class AutoTable(object):
            @declared_attr
            def __tablename__(cls):
                return cls.__name__

            @classmethod
            def __table_cls__(cls, *arg, **kw):
                for obj in arg[1:]:
                    if (isinstance(obj, Column) and obj.primary_key) or \
                            isinstance(obj, PrimaryKeyConstraint):
                        return Table(*arg, **kw)

                return None

        class Person(AutoTable, Base):
            id = Column(Integer, primary_key=True)

        class Employee(Person):
            employee_name = Column(String)

        is_(inspect(Employee).local_table, Person.__table__)

    def test_expression(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', backref='user')

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        User.address_count = \
            sa.orm.column_property(sa.select([sa.func.count(Address.id)]).
                                   where(Address.user_id
                                         == User.id).as_scalar())
        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(name='u1', address_count=2,
                 addresses=[Address(email='one'), Address(email='two')])])

    def test_useless_declared_attr(self):
        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', backref='user')

            @declared_attr
            def address_count(cls):
                # this doesn't really gain us anything.  but if
                # one is used, lets have it function as expected...
                return sa.orm.column_property(
                    sa.select([sa.func.count(Address.id)]).
                    where(Address.user_id == cls.id))

        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(name='u1', address_count=2,
                 addresses=[Address(email='one'), Address(email='two')])])

    def test_declared_on_base_class(self):
        class MyBase(Base):
            __tablename__ = 'foo'
            id = Column(Integer, primary_key=True)

            @declared_attr
            def somecol(cls):
                return Column(Integer)

        class MyClass(MyBase):
            __tablename__ = 'bar'
            id = Column(Integer, ForeignKey('foo.id'), primary_key=True)

        # previously, the 'somecol' declared_attr would be ignored
        # by the mapping and would remain unused.  now we take
        # it as part of MyBase.

        assert 'somecol' in MyBase.__table__.c
        assert 'somecol' not in MyClass.__table__.c

    def test_decl_cascading_warns_non_mixin(self):
        with expect_warnings(
                "Use of @declared_attr.cascading only applies to "
                "Declarative 'mixin' and 'abstract' classes.  "
                "Currently, this flag is ignored on mapped class "
                "<class '.*.MyBase'>"
        ):
            class MyBase(Base):
                __tablename__ = 'foo'
                id = Column(Integer, primary_key=True)

                @declared_attr.cascading
                def somecol(cls):
                    return Column(Integer)

    def test_column(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

        User.a = Column('a', String(10))
        User.b = Column(String(10))
        Base.metadata.create_all()
        u1 = User(name='u1', a='a', b='b')
        eq_(u1.a, 'a')
        eq_(User.a.get_history(u1), (['a'], (), ()))
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [User(name='u1', a='a', b='b')])

    def test_column_properties(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column(String(50))
            user_id = Column(Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

            adr_count = \
                sa.orm.column_property(
                    sa.select([sa.func.count(Address.id)],
                              Address.user_id == id).as_scalar())
            addresses = relationship(Address)

        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(name='u1', adr_count=2,
                 addresses=[Address(email='one'), Address(email='two')])])

    def test_column_properties_2(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column(Integer, primary_key=True)
            email = Column(String(50))
            user_id = Column(Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True)
            name = Column('name', String(50))

            # this is not "valid" but we want to test that Address.id
            # doesn't get stuck into user's table

            adr_count = Address.id

        eq_(set(User.__table__.c.keys()), set(['id', 'name']))
        eq_(set(Address.__table__.c.keys()), set(['id', 'email',
                                                  'user_id']))

    def test_deferred(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = sa.orm.deferred(Column(String(50)))

        Base.metadata.create_all()
        sess = create_session()
        sess.add(User(name='u1'))
        sess.flush()
        sess.expunge_all()
        u1 = sess.query(User).filter(User.name == 'u1').one()
        assert 'name' not in u1.__dict__

        def go():
            eq_(u1.name, 'u1')

        self.assert_sql_count(testing.db, go, 1)

    def test_composite_inline(self):
        class AddressComposite(fixtures.ComparableEntity):

            def __init__(self, street, state):
                self.street = street
                self.state = state

            def __composite_values__(self):
                return [self.street, self.state]

        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'user'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            address = composite(AddressComposite,
                                Column('street', String(50)),
                                Column('state', String(2)),
                                )

        Base.metadata.create_all()
        sess = Session()
        sess.add(User(
            address=AddressComposite('123 anywhere street',
                                     'MD')
        ))
        sess.commit()
        eq_(
            sess.query(User).all(),
            [User(address=AddressComposite('123 anywhere street',
                                           'MD'))]
        )

    def test_composite_separate(self):
        class AddressComposite(fixtures.ComparableEntity):

            def __init__(self, street, state):
                self.street = street
                self.state = state

            def __composite_values__(self):
                return [self.street, self.state]

        class User(Base, fixtures.ComparableEntity):
            __tablename__ = 'user'
            id = Column(Integer, primary_key=True,
                        test_needs_autoincrement=True)
            street = Column(String(50))
            state = Column(String(2))
            address = composite(AddressComposite,
                                street, state)

        Base.metadata.create_all()
        sess = Session()
        sess.add(User(
            address=AddressComposite('123 anywhere street',
                                     'MD')
        ))
        sess.commit()
        eq_(
            sess.query(User).all(),
            [User(address=AddressComposite('123 anywhere street',
                                           'MD'))]
        )

    def test_mapping_to_join(self):
        users = Table('users', Base.metadata,
                      Column('id', Integer, primary_key=True)
                      )
        addresses = Table('addresses', Base.metadata,
                          Column('id', Integer, primary_key=True),
                          Column('user_id', Integer, ForeignKey('users.id'))
                          )
        usersaddresses = sa.join(users, addresses, users.c.id
                                 == addresses.c.user_id)

        class User(Base):
            __table__ = usersaddresses
            __table_args__ = {'primary_key': [users.c.id]}

            # need to use column_property for now
            user_id = column_property(users.c.id, addresses.c.user_id)
            address_id = addresses.c.id

        assert User.__mapper__.get_property('user_id').columns[0] \
            is users.c.id
        assert User.__mapper__.get_property('user_id').columns[1] \
            is addresses.c.user_id

    def test_synonym_inline(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            _name = Column('name', String(50))

            def _set_name(self, name):
                self._name = 'SOMENAME ' + name

            def _get_name(self):
                return self._name

            name = sa.orm.synonym('_name',
                                  descriptor=property(_get_name,
                                                      _set_name))

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='someuser')
        eq_(u1.name, 'SOMENAME someuser')
        sess.add(u1)
        sess.flush()
        eq_(sess.query(User).filter(User.name == 'SOMENAME someuser'
                                    ).one(), u1)

    def test_synonym_no_descriptor(self):
        from sqlalchemy.orm.properties import ColumnProperty

        class CustomCompare(ColumnProperty.Comparator):

            __hash__ = None

            def __eq__(self, other):
                return self.__clause_element__() == other + ' FOO'

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            _name = Column('name', String(50))
            name = sa.orm.synonym('_name',
                                  comparator_factory=CustomCompare)

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='someuser FOO')
        sess.add(u1)
        sess.flush()
        eq_(sess.query(User).filter(User.name == 'someuser').one(), u1)

    def test_synonym_added(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            _name = Column('name', String(50))

            def _set_name(self, name):
                self._name = 'SOMENAME ' + name

            def _get_name(self):
                return self._name

            name = property(_get_name, _set_name)

        User.name = sa.orm.synonym('_name', descriptor=User.name)
        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='someuser')
        eq_(u1.name, 'SOMENAME someuser')
        sess.add(u1)
        sess.flush()
        eq_(sess.query(User).filter(User.name == 'SOMENAME someuser'
                                    ).one(), u1)

    def test_reentrant_compile_via_foreignkey(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', backref='user')

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey(User.id))

        # previous versions would force a re-entrant mapper compile via
        # the User.id inside the ForeignKey but this is no longer the
        # case

        sa.orm.configure_mappers()
        eq_(
            list(Address.user_id.property.columns[0].foreign_keys)[0].column,
            User.__table__.c.id
        )
        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(name='u1',
                 addresses=[Address(email='one'), Address(email='two')])])

    def test_relationship_reference(self):

        class Address(Base, fixtures.ComparableEntity):

            __tablename__ = 'addresses'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            email = Column('email', String(50))
            user_id = Column('user_id', Integer, ForeignKey('users.id'))

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))
            addresses = relationship('Address', backref='user',
                                     primaryjoin=id == Address.user_id)

        User.address_count = \
            sa.orm.column_property(sa.select([sa.func.count(Address.id)]).
                                   where(Address.user_id
                                         == User.id).as_scalar())
        Base.metadata.create_all()
        u1 = User(name='u1', addresses=[Address(email='one'),
                                        Address(email='two')])
        sess = create_session()
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        eq_(sess.query(User).all(), [
            User(name='u1', address_count=2,
                 addresses=[Address(email='one'), Address(email='two')])])

    def test_pk_with_fk_init(self):

        class Bar(Base):

            __tablename__ = 'bar'
            id = sa.Column(sa.Integer, sa.ForeignKey('foo.id'),
                           primary_key=True)
            ex = sa.Column(sa.Integer, primary_key=True)

        class Foo(Base):

            __tablename__ = 'foo'
            id = sa.Column(sa.Integer, primary_key=True)
            bars = sa.orm.relationship(Bar)

        assert Bar.__mapper__.primary_key[0] is Bar.__table__.c.id
        assert Bar.__mapper__.primary_key[1] is Bar.__table__.c.ex

    def test_with_explicit_autoloaded(self):
        meta = MetaData(testing.db)
        t1 = Table(
            't1', meta,
            Column('id', String(50), primary_key=True),
            Column('data', String(50)))
        meta.create_all()
        try:

            class MyObj(Base):

                __table__ = Table('t1', Base.metadata, autoload=True)

            sess = create_session()
            m = MyObj(id='someid', data='somedata')
            sess.add(m)
            sess.flush()
            eq_(t1.select().execute().fetchall(), [('someid', 'somedata'
                                                    )])
        finally:
            meta.drop_all()

    def test_synonym_for(self):

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

            @decl.synonym_for('name')
            @property
            def namesyn(self):
                return self.name

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='someuser')
        eq_(u1.name, 'someuser')
        eq_(u1.namesyn, 'someuser')
        sess.add(u1)
        sess.flush()
        rt = sess.query(User).filter(User.namesyn == 'someuser').one()
        eq_(rt, u1)

    def test_comparable_using(self):

        class NameComparator(sa.orm.PropComparator):

            @property
            def upperself(self):
                cls = self.prop.parent.class_
                col = getattr(cls, 'name')
                return sa.func.upper(col)

            def operate(
                self,
                op,
                other,
                **kw
            ):
                return op(self.upperself, other, **kw)

        class User(Base, fixtures.ComparableEntity):

            __tablename__ = 'users'
            id = Column('id', Integer, primary_key=True,
                        test_needs_autoincrement=True)
            name = Column('name', String(50))

            @decl.comparable_using(NameComparator)
            @property
            def uc_name(self):
                return self.name is not None and self.name.upper() \
                    or None

        Base.metadata.create_all()
        sess = create_session()
        u1 = User(name='someuser')
        eq_(u1.name, 'someuser', u1.name)
        eq_(u1.uc_name, 'SOMEUSER', u1.uc_name)
        sess.add(u1)
        sess.flush()
        sess.expunge_all()
        rt = sess.query(User).filter(User.uc_name == 'SOMEUSER').one()
        eq_(rt, u1)
        sess.expunge_all()
        rt = sess.query(User).filter(User.uc_name.startswith('SOMEUSE'
                                                             )).one()
        eq_(rt, u1)

    def test_duplicate_classes_in_base(self):

        class Test(Base):
            __tablename__ = 'a'
            id = Column(Integer, primary_key=True)

        assert_raises_message(
            sa.exc.SAWarning,
            "This declarative base already contains a class with ",
            lambda: type(Base)("Test", (Base,), dict(
                __tablename__='b',
                id=Column(Integer, primary_key=True)
            ))
        )

    @testing.teardown_events(MapperEvents)
    def test_instrument_class_before_instrumentation(self):
        # test #3388

        canary = mock.Mock()

        @event.listens_for(mapper, "instrument_class")
        def instrument_class(mp, cls):
            canary.instrument_class(mp, cls)

        @event.listens_for(object, "class_instrument")
        def class_instrument(cls):
            canary.class_instrument(cls)

        class Test(Base):
            __tablename__ = 'test'
            id = Column(Integer, primary_key=True)
        # MARKMARK
        eq_(
            canary.mock_calls,
            [
                mock.call.instrument_class(Test.__mapper__, Test),
                mock.call.class_instrument(Test)
            ]
        )

    def test_cls_docstring(self):

        class MyBase(object):
            """MyBase Docstring"""

        Base = decl.declarative_base(cls=MyBase)

        eq_(Base.__doc__, MyBase.__doc__)


def _produce_test(inline, stringbased):

    class ExplicitJoinTest(fixtures.MappedTest):

        @classmethod
        def define_tables(cls, metadata):
            global User, Address
            Base = decl.declarative_base(metadata=metadata)

            class User(Base, fixtures.ComparableEntity):

                __tablename__ = 'users'
                id = Column(Integer, primary_key=True,
                            test_needs_autoincrement=True)
                name = Column(String(50))

            class Address(Base, fixtures.ComparableEntity):

                __tablename__ = 'addresses'
                id = Column(Integer, primary_key=True,
                            test_needs_autoincrement=True)
                email = Column(String(50))
                user_id = Column(Integer, ForeignKey('users.id'))
                if inline:
                    if stringbased:
                        user = relationship(
                            'User',
                            primaryjoin='User.id==Address.user_id',
                            backref='addresses')
                    else:
                        user = relationship(User, primaryjoin=User.id
                                            == user_id, backref='addresses')

            if not inline:
                configure_mappers()
                if stringbased:
                    Address.user = relationship(
                        'User',
                        primaryjoin='User.id==Address.user_id',
                        backref='addresses')
                else:
                    Address.user = relationship(
                        User,
                        primaryjoin=User.id == Address.user_id,
                        backref='addresses')

        @classmethod
        def insert_data(cls):
            params = [
                dict(list(zip(('id', 'name'), column_values)))
                for column_values in [
                    (7, 'jack'), (8, 'ed'),
                    (9, 'fred'), (10, 'chuck')]]

            User.__table__.insert().execute(params)
            Address.__table__.insert().execute([
                dict(list(zip(('id', 'user_id', 'email'), column_values)))
                for column_values in [
                    (1, 7, 'jack@bean.com'),
                    (2, 8, 'ed@wood.com'),
                    (3, 8, 'ed@bettyboop.com'),
                    (4, 8, 'ed@lala.com'), (5, 9, 'fred@fred.com')]])

        def test_aliased_join(self):

            # this query will screw up if the aliasing enabled in
            # query.join() gets applied to the right half of the join
            # condition inside the any(). the join condition inside of
            # any() comes from the "primaryjoin" of the relationship,
            # and should not be annotated with _orm_adapt.
            # PropertyLoader.Comparator will annotate the left side with
            # _orm_adapt, though.

            sess = create_session()
            eq_(sess.query(User).join(User.addresses,
                                      aliased=True).filter(
                Address.email == 'ed@wood.com').filter(
                User.addresses.any(Address.email == 'jack@bean.com')).all(),
                [])

    ExplicitJoinTest.__name__ = 'ExplicitJoinTest%s%s' % (
        inline and 'Inline' or 'Separate',
        stringbased and 'String' or 'Literal')
    return ExplicitJoinTest


for inline in True, False:
    for stringbased in True, False:
        testclass = _produce_test(inline, stringbased)
        exec('%s = testclass' % testclass.__name__)
        del testclass
