mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-06-02 13:59:02 -04:00
Mike Bayer
20cdc64588
become an externally usable package but still remains within the main sqlalchemy parent package. in this system, we use kind of an ugly hack to get the noseplugin imported outside of the "sqlalchemy" package, while still making it available within sqlalchemy for usage by third party libraries.
79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
import sqlalchemy as sa
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from sqlalchemy import testing
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from sqlalchemy import Integer, String, ForeignKey
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from sqlalchemy.testing.schema import Table, Column
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from sqlalchemy.orm import mapper, relationship, create_session
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from sqlalchemy.testing import fixtures
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class O2OTest(fixtures.MappedTest):
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@classmethod
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def define_tables(cls, metadata):
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Table('jack', metadata,
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Column('id', Integer, primary_key=True, test_needs_autoincrement=True),
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Column('number', String(50)),
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Column('status', String(20)),
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Column('subroom', String(5)))
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Table('port', metadata,
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Column('id', Integer, primary_key=True, test_needs_autoincrement=True),
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Column('name', String(30)),
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Column('description', String(100)),
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Column('jack_id', Integer, ForeignKey("jack.id")))
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@classmethod
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def setup_mappers(cls):
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class Jack(cls.Basic):
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pass
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class Port(cls.Basic):
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pass
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def test_basic(self):
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Port, port, jack, Jack = (self.classes.Port,
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self.tables.port,
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self.tables.jack,
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self.classes.Jack)
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mapper(Port, port)
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mapper(Jack, jack,
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order_by=[jack.c.number],
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properties=dict(
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port=relationship(Port, backref='jack',
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uselist=False,
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)),
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)
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session = create_session()
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j = Jack(number='101')
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session.add(j)
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p = Port(name='fa0/1')
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session.add(p)
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j.port=p
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session.flush()
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jid = j.id
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pid = p.id
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j=session.query(Jack).get(jid)
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p=session.query(Port).get(pid)
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assert p.jack is not None
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assert p.jack is j
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assert j.port is not None
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p.jack = None
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assert j.port is None
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session.expunge_all()
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j = session.query(Jack).get(jid)
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p = session.query(Port).get(pid)
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j.port=None
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self.assert_(p.jack is None)
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session.flush()
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session.delete(j)
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session.flush()
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