test_codegen.py 文件源码

def test_manytomany(self):
        Table(
            'simple_items', self.metadata,
            Column('id', INTEGER, primary_key=True)
        )
        Table(
            'simple_containers', self.metadata,
            Column('id', INTEGER, primary_key=True)
        )
        Table(
            'container_items', self.metadata,
            Column('item_id', INTEGER),
            Column('container_id', INTEGER),
            ForeignKeyConstraint(['item_id'], ['simple_items.id']),
            ForeignKeyConstraint(['container_id'], ['simple_containers.id'])
        )

        assert self.generate_code() == """\
# coding: utf-8
from sqlalchemy import Column, ForeignKey, Integer, Table
from sqlalchemy.orm import relationship
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()
metadata = Base.metadata


t_container_items = Table(
    'container_items', metadata,
    Column('item_id', ForeignKey('simple_items.id')),
    Column('container_id', ForeignKey('simple_containers.id'))
)


class SimpleContainer(Base):
    __tablename__ = 'simple_containers'

    id = Column(Integer, primary_key=True)

    items = relationship('SimpleItem', secondary='container_items')


class SimpleItem(Base):
    __tablename__ = 'simple_items'

    id = Column(Integer, primary_key=True)
"""