SQLALCHEMY的增删改查

1、增：

        newfirm = bdqf(pno = form1.pno.data,
                    com = form1.comcode.data,
                    risk =form1.riskcode.data,
                    bf = form1.bf.data,
                    commissions = form1.commissions.data,
                    deskdate = form1.deskdate.data,
                    tjdate = pd.datetime.today().strftime("%Y-%m-%d")
                    )

        db.session.add(newfirm)
        db.session.commit()
        flash('记录增加成功！')

2、删：

def delbd():
    form = Delqf()
    if form.validate_on_submit():
        delit = db.session.query(bdqf).filter(bdqf.policyno == form.policyno.data).all()
        if delit is not None:
            for i in delit:
                db.session.delete(i)
                db.session.commit()
                flash('记录被删除！')
        else:
            flash('不存在，无需删除！')
    return render_template('main/addqf.html', form=form,tablename=tablename)

3、改：

def modyqf(policyno):
    tablename = '请修改'+ policyno + '的清分信息'
    form=Modqf()
    qf = db.session.query(bdqf).filter_by(policyno = policyno).first()
    if form.validate_on_submit():
        qf.bf = form.bf.data,
        qf.commissions = form.commissions.data,
        qf.saler = form.saler.data,
        qf.agent2 = form.agent2.data,
        qf.tjdate = pd.datetime.today().strftime("%Y-%m-%d")
        db.session.commit()
        db.session.close()
        flash('记录修改成功！')
    return render_template('main/addqf.html', form=form,tablename = tablename)

4、查：

@login_required
def qftzcx():
    tablename = '清分台帐查询'
    form = Comdate()
    df = pd.DataFrame()
    if form.validate_on_submit():
        comcode = getjg(current_user.comcode)
        sdate = str(form.sdate.data)
        edate = str(form.edate.data)
        df = db.session.query(bdqf).filter(and_(bdqf.comcode.like(comcode),bdqf.deskdate<= edate,bdqf.deskdate>=sdate )).all()
        return render_template('main/showzl.html', cop=df )
    return render_template('main/addqf.html', form=form, tablename=tablename)

5、汇总查询：

    df = pd.DataFrame()
    if form.validate_on_submit():
        comcode = getjg(current_user.comcode)
        saler = form.saler.data
        sdate = str(form.startdate.data)
        edate = str(form.enddate.data)
        from sqlalchemy import func
        df = db.session.query(bdqf.saler,bdqf.agent2,bdqf.riskkind,bdqf.transxb,bdqf.transxbyear,func.sum(bdqf.bf).label('bf')).filter(
            and_(bdqf.comcode.like(comcode),bdqf.saler==saler,bdqf.deskdate<= edate,bdqf.deskdate>=sdate )).group_by(
            bdqf.saler,bdqf.agent2,bdqf.riskkind,bdqf.transxb,bdqf.transxbyear).all()
        df = pd.DataFrame(df)