我正在使用sqlalchemy和wtforms在龙卷风中构建一个应用程序.我有两个模特委员会和会员有多对多的关系.我在使用sqlalchemy模型填充表单时遇到问题.

我的模特看起来像这样

class Committee(Base):
    __tablename__ = 'committee'

    id_ = Column(Integer, primary_key=True)
    name = Column(String)

class Member(Base):
    __tablename__ = 'member'

    id_ = Column(Integer, primary_key=True)
    name = Column(String)
    phone = Column(String)
    committee = relationship("Committee",
                  secondary=member_committee_table,
                  backref="members")

#query wrapper used in wtforms
def get_members():
    #return m.Session.query(Member).all()
    return m.Session.query(Member)

class CommitteeForm(BaseForm):
    name = TextField('name', validators=[Required()])
    members = QuerySelectMultipleField(query_factory=get_members())

这给我错误提示“查询”对象不可调用

解决方法:

摆脱'()’.
它需要一个方法工厂

members = QuerySelectMultipleField(query_factory=get_members)