姬長信(Redy)

python – jsonify Flask中的SQLAlchemy结果集


参见英文答案 > How to serialize SqlAlchemy result to JSON?????????????????????????????????????20个
我正在尝试在Flask / Python中jsonify一个SQLAlchemy结果集.

Flask邮件列表提出了以下方法http://librelist.com/browser//flask/2011/2/16/jsonify-sqlalchemy-pagination-collection-result/#04a0754b63387f87e59dda564bde426e

return jsonify(json_list = qryresult)

但是我收到以下错误:

TypeError:  
is not JSON serializable

我在这里俯瞰什么?

我发现了这个问题:How to serialize SqlAlchemy result to JSON?看起来非常相似但是我不知道Flask是否有一些魔力可以让它变得更容易,如邮件列表帖子所示.

编辑:为了澄清,这就是我的模型的样子

class Rating(db.Model):

    __tablename__ = 'rating'

    id = db.Column(db.Integer, primary_key=True)
    fullurl = db.Column(db.String())
    url = db.Column(db.String())
    comments = db.Column(db.Text)
    overall = db.Column(db.Integer)
    shipping = db.Column(db.Integer)
    cost = db.Column(db.Integer)
    honesty = db.Column(db.Integer)
    communication = db.Column(db.Integer)
    name = db.Column(db.String())
    ipaddr = db.Column(db.String())
    date = db.Column(db.String())

    def __init__(self, fullurl, url, comments, overall, shipping, cost, honesty, communication, name, ipaddr, date):
        self.fullurl = fullurl
        self.url = url
        self.comments = comments
        self.overall = overall
        self.shipping = shipping
        self.cost = cost
        self.honesty = honesty
        self.communication = communication
        self.name = name
        self.ipaddr = ipaddr
        self.date = date