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在我SQLAlchemy的班,我有以下類別:嵌套棉花糖領域和SQLAlchemy的關係
class FooBar(Model):
__tablename__ = ‘foobar’
id = Column('id', Integer, primary_key=True)
foonr = Column('foonr', Integer, ForeignKey('foo.nr'), nullable=False)
barnr = Column('barnr', String, ForeignKey('bar.nr'), nullable=False)
class Foo(Model):
__tablename__ = ‘foo’
nr = Column('nr', Integer, primary_key=True)
foo_name = Column(‘name’,String)
class Bar(Model):
__tablename__ = ‘bar’
nr = Column('nr', Integer, primary_key=True)
bar_name = Column(‘name’,String)
foo_bar = relationship('foobar', uselist=False)
當我嘗試拼圖類富或酒吧在棉花糖模式爲FooBar的我沒有得到任何結果(字典沒有任何對Foo或Bar類的引用)。
class FooBarSchema(Schema):
id = fields.Int()
foo = fields.Nested('FooSchema', many=False)
bar = fields.Nested('BarSchema', many=False)
如何獲得FooBarSchema結果中的Foo和Bar類?