google 了 3 天反复测试也找不到答案的 Flask-SQLAlchemy 问题,请大神于水火间拯救我 - V2EX
V2EX = way to explore
V2EX 是一个关于分享和探索的地方
现在注册
已注册用户请  登录
推荐学习书目
Learn Python the Hard Way
Python Sites
PyPI - Python Package Index
http://diveintopython.org/toc/index.html
Pocoo
值得关注的项目
PyPy
Celery
Jinja2
Read the Docs
gevent
pyenv
virtualenv
Stackless Python
Beautiful Soup
结巴中文分词
Green Unicorn
Sentry
Shovel
Pyflakes
pytest
Python 编程
pep8 Checker
Styles
PEP 8
Google Python Style Guide
Code Style from The Hitchhiker's Guide
sunnylemon

google 了 3 天反复测试也找不到答案的 Flask-SQLAlchemy 问题,请大神于水火间拯救我

  •  
  •   sunnylemon 2020 年 11 月 23 日 2082 次点击
    这是一个创建于 1978 天前的主题,其中的信息可能已经有所发展或是发生改变。
    求教各位大佬:

    订单表( FuckOrders )的 diy_order_phoneShellID 字段,对应 商品型号表( PhonesShell )的 phoneShellID 字段。
    商品型号表有一个 phoneShellDesc 商品型号描述字段。

    对应的 sql 语句是
    select * from diy_orders o
    INNER JOIN diy_phone_shells s
    on o.diy_order_phOneShellID=s.phoneShellID
    where diy_order_status=2
    ORDER BY o.createDateObj DESC

    我想把订单表中每个订单所对应的 phoneShellDesc 字段显示到网页中。
    请问上面的语句应该怎么样改呢? 谢谢指点

    py 文件代码:

    from flask import Flask, request, flash, url_for, redirect, render_template
    from flask_sqlalchemy import SQLAlchemy

    app = Flask(__name__)
    app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://root:[email protected]:3306/diy'
    app.config['SECRET_KEY'] = "random string"

    db = SQLAlchemy(app)


    class FuckOrders(db.Model):
    __tablename__ = 'diy_orders'
    #id = db.Column('diy_order_id', db.Integer, primary_key = True)
    diy_order_id = db.Column(db.Integer, primary_key = True)
    diy_order_receiver = db.Column()
    diy_order_phOne= db.Column()
    diy_order_province= db.Column()
    diy_order_city = db.Column()
    diy_order_area = db.Column()
    diy_order_detail= db.Column()
    diy_order_status= db.Column()
    diy_order_count = db.Column()
    diy_order_phOneShellID=db.Column()
    diy_order_orderDealMOneyFen=db.Column()
    diy_order_renderImgUrl= db.Column()
    diy_order_renderImgWithShellUrl= db.Column()
    createDateObj= db.Column()
    diy_order_ship= db.Column()
    #phoneShellDesc 这个是否需要声明?



    def __init__(self, diy_order_receiver, diy_order_phone,diy_order_city, diy_order_area,diy_order_count,diy_order_detail,diy_order_status,diy_order_orderDealMoneyFen,diy_order_phoneShellID,diy_order_renderImgUrl,diy_order_renderImgWithShellUrl,createDateObj,diy_order_ship,diy_order_phoneShellDESC):
    self.diy_order_receiver = diy_order_receiver
    self.diy_order_phOne= diy_order_phone
    self.diy_order_city = diy_order_city
    self.diy_order_area = diy_order_area
    self.diy_order_count = diy_order_count
    self.diy_order_detail= diy_order_detail
    self.diy_order_status=diy_order_status
    self.diy_order_phOneShellID=diy_order_phoneShellID
    self.diy_order_orderDealMOneyFen=diy_order_orderDealMoneyFen
    self.diy_order_renderImgUrl=diy_order_renderImgUrl
    self.diy_order_renderImgWithShellUrl=diy_order_renderImgWithShellUrl
    self.createDateObj=createDateObj
    self.diy_order_ship=diy_order_ship
    self.diy_order_phOneShellDESC=diy_order_phoneShellDESC


    class PhonesShell(db.Model):
    __tablename__ = 'diy_phone_shells'
    id = db.Column('phoneShellKeyId', db.Integer, primary_key = True)
    phOneShellID= db.Column(db.Integer)
    phOneShellDesc= db.Column(db.String)


    def __init__(self, phoneShellID,phoneShellDesc):
    self.phOneShellID= phoneShellID
    self.phOneShellDesc= phoneShellDesc


    @app.route('/')
    def Show_Orders()
    return render_template('Order_Lists.html',HiOrders=FuckOrders.query.outerjoin(PhonesShell, PhonesShell.phOneShellID==FuckOrders.diy_order_phoneShellID).all())


    if __name__ == '__main__':
    app.run(debug = True)
    7 条回复    2020-11-25 08:58:36 +08:00
    no1xsyzy
        1
    no1xsyzy  
       2020 年 11 月 24 日
    xiaoqiao24
        2
    xiaoqiao24  
       2020 年 11 月 24 日
    FuckOrders.query.filter(FuckOrders.diy_order_status==2).join(PhonesShell, PhonesShell.phOneShellID==FuckOrders.diy_order_phoneShellID).order_by(FuckOrders.createDateObj.desc())

    试试看对不对
    sunnylemon
        3
    sunnylemon  
    OP
       2020 年 11 月 24 日
    @xiaoqiao24 谢谢大佬。可以正常运行,但是要怎么样才能把这个字段 [ PhonesShell.phoneShellDesc ] 绑定到网页里边呢?
    luckyc
        4
    luckyc  
       2020 年 11 月 24 日
    luckyc
        5
    luckyc  
       2020 年 11 月 24 日
    SjwNo1
        6
    SjwNo1  
       2020 年 11 月 24 日
    `db.session.query(...).join(table, conds).order_by`
    xiaoqiao24
        7
    xiaoqiao24  
       2020 年 11 月 25 日
    @sunnylemon 什么叫做绑定到网页里面,这个属于你的业务逻辑范畴了吧?!既不贴代码,又不说明使用场景,你让我等怎么猜?
    关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     865 人在线   最高记录 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 38ms UTC 20:58 PVG 04:58 LAX 13:58 JFK 16:58
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86