python基于django的餐厅在线点餐选座系统的设计与实现

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1、绪论

1.1 项目背景

   基随着计算机技术和信息化发展,网络遍布生活每一个角落,给人们生活带来了便捷,许多餐饮行业引用了计算机和网络技术,好的技术推动行业发展。因此一个在线选择菜品、点单、结算、管理菜品和用户信息的餐厅在线点餐系统,符合当今网络社会现代化管理模式,同时降低了经营店家的管理成本,提高了信息传达的效率和准确性。

2、核心功能模块

  Python基于Django餐厅点餐选座系统的设计根据实际调研现在社会真实存在的一些餐厅现有的实际订餐流程,了解餐厅老板和就餐的用户的需求,最后以这些需求角度进行设计。其中包括店家角度的餐桌管理、订单管理、菜品管理、用户管理、订单的管理;用户角度的菜品介绍、预订餐桌、收藏菜品、订单结算等。系统实现主要使用了Python语言,利用Django框架,以及使用MySQL数据库、PyCharm 2021.3开发工具。

3、项目页面展示

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4、 菜品订单核心代码

#coding:utf-8
__author__ = "ila"
import base64, copy, logging, os, time, xlrd
from django.http import JsonResponse
from django.apps import apps
from django.db.models.aggregates import Count,Sum
from .models import caipindingdan
from util.codes import *
from util.auth import Auth
from util.common import Common
import util.message as mes
from django.db import connection
import random
from django.core.mail import send_mail
from alipay import AliPayConfig, AliPay
from django.conf import settings
from django.shortcuts import redirect

def caipindingdan_register(request):
    if request.method in ["POST", "GET"]:
        msg = {'code': normal_code, "msg": mes.normal_code}
        req_dict = request.session.get("req_dict")


        error = caipindingdan.createbyreq(caipindingdan, caipindingdan, req_dict)
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = "用户已存在,请勿重复注册!"
        return JsonResponse(msg)

def caipindingdan_login(request):
    if request.method in ["POST", "GET"]:
        msg = {'code': normal_code, "msg": mes.normal_code}
        req_dict = request.session.get("req_dict")

        datas = caipindingdan.getbyparams(caipindingdan, caipindingdan, req_dict)
        if not datas:
            msg['code'] = password_error_code
            msg['msg'] = mes.password_error_code
            return JsonResponse(msg)
        try:
            __sfsh__= caipindingdan.__sfsh__
        except:
            __sfsh__=None

        if  __sfsh__=='是':
            if datas[0].get('sfsh')=='否':
                msg['code']=other_code
                msg['msg'] = "账号已锁定,请联系管理员审核!"
                return JsonResponse(msg)
                
        req_dict['id'] = datas[0].get('id')
        return Auth.authenticate(Auth, caipindingdan, req_dict)


def caipindingdan_logout(request):
    if request.method in ["POST", "GET"]:
        msg = {
            "msg": "登出成功",
            "code": 0
        }

        return JsonResponse(msg)


def caipindingdan_resetPass(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code}

        req_dict = request.session.get("req_dict")

        columns=  caipindingdan.getallcolumn( caipindingdan, caipindingdan)

        try:
            __loginUserColumn__= caipindingdan.__loginUserColumn__
        except:
            __loginUserColumn__=None
        username=req_dict.get(list(req_dict.keys())[0])
        if __loginUserColumn__:
            username_str=__loginUserColumn__
        else:
            username_str=username
        if 'mima' in columns:
            password_str='mima'
        else:
            password_str='password'

        init_pwd = '123456'
        recordsParam = {}
        recordsParam[username_str] = req_dict.get("username")
        records=caipindingdan.getbyparams(caipindingdan, caipindingdan, recordsParam)
        if len(records)<1:
            msg['code'] = 400
            msg['msg'] = '用户不存在'
            return JsonResponse(msg)

        eval('''caipindingdan.objects.filter({}='{}').update({}='{}')'''.format(username_str,username,password_str,init_pwd))
        
        return JsonResponse(msg)



def caipindingdan_session(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code,"msg": mes.normal_code, "data": {}}

        req_dict={"id":request.session.get('params').get("id")}
        msg['data']  = caipindingdan.getbyparams(caipindingdan, caipindingdan, req_dict)[0]

        return JsonResponse(msg)


def caipindingdan_default(request):

    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code,"msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        req_dict.update({"isdefault":"是"})
        data=caipindingdan.getbyparams(caipindingdan, caipindingdan, req_dict)
        if len(data)>0:
            msg['data']  = data[0]
        else:
            msg['data']  = {}
        return JsonResponse(msg)

def caipindingdan_page(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code,  "data":{"currPage":1,"totalPage":1,"total":1,"pageSize":10,"list":[]}}
        req_dict = request.session.get("req_dict")

        #获取全部列名
        columns=  caipindingdan.getallcolumn( caipindingdan, caipindingdan)

        #当前登录用户所在表
        tablename = request.session.get("tablename")


            #authColumn=list(__authTables__.keys())[0]
            #authTable=__authTables__.get(authColumn)

            # if authTable==tablename:
                #params = request.session.get("params")
                #req_dict[authColumn]=params.get(authColumn)

        '''__authSeparate__此属性为真,params添加userid,后台只查询个人数据'''
        try:
            __authSeparate__=caipindingdan.__authSeparate__
        except:
            __authSeparate__=None

        if __authSeparate__=="是":
            tablename=request.session.get("tablename")
            if tablename!="users" and 'userid' in columns:
                try:
                    req_dict['userid']=request.session.get("params").get("id")
                except:
                    pass

        #当项目属性hasMessage为”是”,生成系统自动生成留言板的表messages,同时该表的表属性hasMessage也被设置为”是”,字段包括userid(用户id),username(用户名),content(留言内容),reply(回复)
        #接口page需要区分权限,普通用户查看自己的留言和回复记录,管理员查看所有的留言和回复记录
        try:
            __hasMessage__=caipindingdan.__hasMessage__
        except:
            __hasMessage__=None
        if  __hasMessage__=="是":
            tablename=request.session.get("tablename")
            if tablename!="users":
                req_dict["userid"]=request.session.get("params").get("id")



        # 判断当前表的表属性isAdmin,为真则是管理员表
        # 当表属性isAdmin=”是”,刷出来的用户表也是管理员,即page和list可以查看所有人的考试记录(同时应用于其他表)
        __isAdmin__ = None

        allModels = apps.get_app_config('main').get_models()
        for m in allModels:
            if m.__tablename__==tablename:

                try:
                    __isAdmin__ = m.__isAdmin__
                except:
                    __isAdmin__ = None
                break

        # 当前表也是有管理员权限的表
        if  __isAdmin__ == "是":
            if req_dict.get("userid"):
                del req_dict["userid"]

        else:
            #非管理员权限的表,判断当前表字段名是否有userid
            if tablename!="users" and 'caipindingdan'[:7]!='discuss'and "userid" in caipindingdan.getallcolumn(caipindingdan,caipindingdan):
                req_dict["userid"] = request.session.get("params").get("id")

        #当列属性authTable有值(某个用户表)[该列的列名必须和该用户表的登陆字段名一致],则对应的表有个隐藏属性authTable为”是”,那么该用户查看该表信息时,只能查看自己的
        try:
            __authTables__=caipindingdan.__authTables__
        except:
            __authTables__=None

        if __authTables__!=None and  __authTables__!={}:
            try:
                del req_dict['userid']
            except:
                pass
            for authColumn,authTable in __authTables__.items():
                if authTable==tablename:
                    params = request.session.get("params")
                    req_dict[authColumn]=params.get(authColumn)
                    break
        msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
        msg['data']['pageSize']  =caipindingdan.page(caipindingdan, caipindingdan, req_dict, request)

        return JsonResponse(msg)

def caipindingdan_autoSort(request):
    '''
    .智能推荐功能(表属性:[intelRecom(是/否)],新增clicktime[前端不显示该字段]字段(调用info/detail接口的时候更新),按clicktime排序查询)
主要信息列表(如商品列表,新闻列表)中使用,显示最近点击的或最新添加的5条记录就行
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code,  "data":{"currPage":1,"totalPage":1,"total":1,"pageSize":10,"list":[]}}
        req_dict = request.session.get("req_dict")
        if "clicknum"  in caipindingdan.getallcolumn(caipindingdan,caipindingdan):
            req_dict['sort']='clicknum'
        else:
            req_dict['sort']='clicktime'
        req_dict['order']='desc'
        msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
        msg['data']['pageSize']  = caipindingdan.page(caipindingdan,caipindingdan, req_dict)

        return JsonResponse(msg)


def caipindingdan_list(request):
    '''
    前台分页
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code,  "data":{"currPage":1,"totalPage":1,"total":1,"pageSize":10,"list":[]}}
        req_dict = request.session.get("req_dict")

        #获取全部列名
        columns=  caipindingdan.getallcolumn( caipindingdan, caipindingdan)
        #表属性[foreEndList]前台list:和后台默认的list列表页相似,只是摆在前台,否:指没有此页,是:表示有此页(不需要登陆即可查看),前要登:表示有此页且需要登陆后才能查看
        try:
            __foreEndList__=caipindingdan.__foreEndList__
        except:
            __foreEndList__=None

        if __foreEndList__=="前要登":
            tablename=request.session.get("tablename")
            if tablename!="users" and 'userid' in columns:
                try:
                    req_dict['userid']=request.session.get("params").get("id")
                except:
                    pass
        #forrEndListAuth
        try:
            __foreEndListAuth__=caipindingdan.__foreEndListAuth__
        except:
            __foreEndListAuth__=None


        #authSeparate
        try:
            __authSeparate__=caipindingdan.__authSeparate__
        except:
            __authSeparate__=None

        if __foreEndListAuth__ =="是" and __authSeparate__=="是":
            tablename=request.session.get("tablename")
            if tablename!="users":
                req_dict['userid']=request.session.get("params",{"id":0}).get("id")

        tablename = request.session.get("tablename")
        if tablename == "users" and req_dict.get("userid") != None:#判断是否存在userid列名
            del req_dict["userid"]
        else:
            __isAdmin__ = None

            allModels = apps.get_app_config('main').get_models()
            for m in allModels:
                if m.__tablename__==tablename:

                    try:
                        __isAdmin__ = m.__isAdmin__
                    except:
                        __isAdmin__ = None
                    break

            if __isAdmin__ == "是":
                if req_dict.get("userid"):
                    del req_dict["userid"]
            else:
                #非管理员权限的表,判断当前表字段名是否有userid
                if "userid" in columns:
                    try:
                        # 本接口可以匿名访问,所以try判断是否为匿名
                        req_dict['userid']=request.session.get("params").get("id")
                    except:
                            pass
        #当列属性authTable有值(某个用户表)[该列的列名必须和该用户表的登陆字段名一致],则对应的表有个隐藏属性authTable为”是”,那么该用户查看该表信息时,只能查看自己的
        try:
            __authTables__=caipindingdan.__authTables__
        except:
            __authTables__=None

        if __authTables__!=None and  __authTables__!={} and __foreEndListAuth__=="是":
            try:
                del req_dict['userid']
            except:
                pass
            for authColumn,authTable in __authTables__.items():
                if authTable==tablename:
                    params = request.session.get("params")
                    req_dict[authColumn]=params.get(authColumn)
                    break
        
        if caipindingdan.__tablename__[:7]=="discuss":
            try:
                del req_dict['userid']
            except:
                pass


        msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
        msg['data']['pageSize']  = caipindingdan.page(caipindingdan, caipindingdan, req_dict)

        return JsonResponse(msg)

def caipindingdan_save(request):
    '''
    后台新增
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        if 'clicktime' in req_dict.keys():
            del req_dict['clicktime']
        tablename=request.session.get("tablename")
        __isAdmin__ = None
        allModels = apps.get_app_config('main').get_models()
        for m in allModels:
            if m.__tablename__==tablename:

                try:
                    __isAdmin__ = m.__isAdmin__
                except:
                    __isAdmin__ = None
                break


        #获取全部列名
        columns=  caipindingdan.getallcolumn( caipindingdan, caipindingdan)
        if tablename!='users' and req_dict.get("userid")!=None and 'userid' in columns  and __isAdmin__!='是':
            params=request.session.get("params")
            req_dict['userid']=params.get('id')


        error= caipindingdan.createbyreq(caipindingdan,caipindingdan, req_dict)
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error

        return JsonResponse(msg)


def caipindingdan_add(request):
    '''
    前台新增
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")

        #获取全部列名
        columns=  caipindingdan.getallcolumn( caipindingdan, caipindingdan)
        try:
            __authSeparate__=caipindingdan.__authSeparate__
        except:
            __authSeparate__=None

        if __authSeparate__=="是":
            tablename=request.session.get("tablename")
            if tablename!="users" and 'userid' in columns:
                try:
                    req_dict['userid']=request.session.get("params").get("id")
                except:
                    pass

        try:
            __foreEndListAuth__=caipindingdan.__foreEndListAuth__
        except:
            __foreEndListAuth__=None

        if __foreEndListAuth__ and __foreEndListAuth__!="否":
            tablename=request.session.get("tablename")
            if tablename!="users":
                req_dict['userid']=request.session.get("params").get("id")

        error= caipindingdan.createbyreq(caipindingdan,caipindingdan, req_dict)
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)

def caipindingdan_thumbsup(request,id_):
    '''
     点赞:表属性thumbsUp[是/否],刷表新增thumbsupnum赞和crazilynum踩字段,
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        id_=int(id_)
        type_=int(req_dict.get("type",0))
        rets=caipindingdan.getbyid(caipindingdan,caipindingdan,id_)

        update_dict={
        "id":id_,
        }
        if type_==1:#赞
            update_dict["thumbsupnum"]=int(rets[0].get('thumbsupnum'))+1
        elif type_==2:#踩
            update_dict["crazilynum"]=int(rets[0].get('crazilynum'))+1
        error = caipindingdan.updatebyparams(caipindingdan,caipindingdan, update_dict)
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def caipindingdan_info(request,id_):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}

        data = caipindingdan.getbyid(caipindingdan,caipindingdan, int(id_))
        if len(data)>0:
            msg['data']=data[0]
        #浏览点击次数
        try:
            __browseClick__= caipindingdan.__browseClick__
        except:
            __browseClick__=None

        if __browseClick__=="是"  and  "clicknum"  in caipindingdan.getallcolumn(caipindingdan,caipindingdan):
            try:
                clicknum=int(data[0].get("clicknum",0))+1
            except:
                clicknum=0+1
            click_dict={"id":int(id_),"clicknum":clicknum}
            ret=caipindingdan.updatebyparams(caipindingdan,caipindingdan,click_dict)
            if ret!=None:
                msg['code'] = crud_error_code
                msg['msg'] = ret
        return JsonResponse(msg)

def caipindingdan_detail(request,id_):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}

        data =caipindingdan.getbyid(caipindingdan,caipindingdan, int(id_))
        if len(data)>0:
            msg['data']=data[0]

        #浏览点击次数
        try:
            __browseClick__= caipindingdan.__browseClick__
        except:
            __browseClick__=None

        if __browseClick__=="是"   and  "clicknum"  in caipindingdan.getallcolumn(caipindingdan,caipindingdan):
            try:
                clicknum=int(data[0].get("clicknum",0))+1
            except:
                clicknum=0+1
            click_dict={"id":int(id_),"clicknum":clicknum}

            ret=caipindingdan.updatebyparams(caipindingdan,caipindingdan,click_dict)
            if ret!=None:
                msg['code'] = crud_error_code
                msg['msg'] = retfo
        return JsonResponse(msg)


def caipindingdan_update(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        if req_dict.get("mima") and req_dict.get("password"):
            if "mima" not  in caipindingdan.getallcolumn(caipindingdan,caipindingdan) :
                del req_dict["mima"]
            if  "password" not  in caipindingdan.getallcolumn(caipindingdan,caipindingdan) :
                del req_dict["password"]
        try:
            del req_dict["clicknum"]
        except:
            pass


        error = caipindingdan.updatebyparams(caipindingdan, caipindingdan, req_dict)
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def caipindingdan_delete(request):
    '''
    批量删除
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")

        error=caipindingdan.deletes(caipindingdan,
            caipindingdan,
             req_dict.get("ids")
        )
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def caipindingdan_vote(request,id_):
    '''
    浏览点击次数(表属性[browseClick:是/否],点击字段(clicknum),调用info/detail接口的时候后端自动+1)、投票功能(表属性[vote:是/否],投票字段(votenum),调用vote接口后端votenum+1)
统计商品或新闻的点击次数;提供新闻的投票功能
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code}


        data= caipindingdan.getbyid(caipindingdan, caipindingdan, int(id_))
        for i in data:
            votenum=i.get('votenum')
            if votenum!=None:
                params={"id":int(id_),"votenum":votenum+1}
                error=caipindingdan.updatebyparams(caipindingdan,caipindingdan,params)
                if error!=None:
                    msg['code'] = crud_error_code
                    msg['msg'] = error
        return JsonResponse(msg)

def caipindingdan_importExcel(request):
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": "成功", "data": {}}

        excel_file = request.FILES.get("file", "")
        file_type = excel_file.name.split('.')[1]
        
        if file_type in ['xlsx', 'xls']:
            data = xlrd.open_workbook(filename=None, file_contents=excel_file.read())
            table = data.sheets()[0]
            rows = table.nrows
            
            try:
                for row in range(1, rows):
                    row_values = table.row_values(row)
                    req_dict = {}
                    caipindingdan.createbyreq(caipindingdan, caipindingdan, req_dict)
                    
            except:
                pass
                
        else:
            msg.code = 500
            msg.msg = "文件类型错误"
                
        return JsonResponse(msg)

def caipindingdan_sendemail(request):
    if request.method in ["POST", "GET"]:
        req_dict = request.session.get("req_dict")

        code = random.sample(['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'], 4)
        to = []
        to.append(req_dict['email'])

        send_mail('用户注册', '您的注册验证码是【'+''.join(code)+'】,请不要把验证码泄漏给其他人,如非本人请勿操作。', 'yclw9@qq.com', to, fail_silently = False)

        cursor = connection.cursor()
        cursor.execute("insert into emailregistercode(email,role,code) values('"+req_dict['email']+"','用户','"+''.join(code)+"')")

        msg = {
            "msg": "发送成功",
            "code": 0
        }

        return JsonResponse(msg)

def caipindingdan_autoSort2(request):
    
    if request.method in ["POST", "GET"]:
        req_dict = request.session.get("req_dict")
        cursor = connection.cursor()
        leixing = set()
        try:
            cursor.execute("select inteltype from storeup where userid = %d"%(request.session.get("params").get("id"))+" and tablename = 'caipindingdan' order by addtime desc")
            rows = cursor.fetchall()
            for row in rows:
                for item in row:
                    if item != None:
                        leixing.add(item)
        except:
            leixing = set()
        
        L = []
        cursor.execute("select * from caipindingdan where $intelRecomColumn in ('%s"%("','").join(leixing)+"') union all select * from caipindingdan where $intelRecomColumn not in('%s"%("','").join(leixing)+"')")
        desc = cursor.description
        data_dict = [dict(zip([col[0] for col in desc], row)) for row in cursor.fetchall()] 
        for online_dict in data_dict:
            for key in online_dict:
                if 'datetime.datetime' in str(type(online_dict[key])):
                    online_dict[key] = online_dict[key].strftime(
                        "%Y-%m-%d %H:%M:%S")
                else:
                    pass
            L.append(online_dict)


        return JsonResponse({"code": 0, "msg": '',  "data":{"currPage":1,"totalPage":1,"total":1,"pageSize":5,"list": L[0:6]}})

def caipindingdan_value(request, xColumnName, yColumnName, timeStatType):
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": "成功", "data": {}}
        
        where = ' where 1 = 1 '
        sql = ''
        if timeStatType == '日':
            sql = "SELECT DATE_FORMAT({0}, '%Y-%m-%d') {0}, sum({1}) total FROM caipindingdan {2} GROUP BY DATE_FORMAT({0}, '%Y-%m-%d')".format(xColumnName, yColumnName, where, '%Y-%m-%d')

        if timeStatType == '月':
            sql = "SELECT DATE_FORMAT({0}, '%Y-%m') {0}, sum({1}) total FROM caipindingdan {2} GROUP BY DATE_FORMAT({0}, '%Y-%m')".format(xColumnName, yColumnName, where, '%Y-%m')

        if timeStatType == '年':
            sql = "SELECT DATE_FORMAT({0}, '%Y') {0}, sum({1}) total FROM caipindingdan {2} GROUP BY DATE_FORMAT({0}, '%Y')".format(xColumnName, yColumnName, where, '%Y')
        L = []
        cursor = connection.cursor()
        cursor.execute(sql)
        desc = cursor.description
        data_dict = [dict(zip([col[0] for col in desc], row)) for row in cursor.fetchall()] 
        for online_dict in data_dict:
            for key in online_dict:
                if 'datetime.datetime' in str(type(online_dict[key])):
                    online_dict[key] = online_dict[key].strftime(
                        "%Y-%m-%d %H:%M:%S")
                else:
                    pass
            L.append(online_dict)
        msg['data'] = L

        return JsonResponse(msg)

def caipindingdan_o_value(request, xColumnName, yColumnName):
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": "成功", "data": {}}
        
        where = ' where 1 = 1 '
        
        sql = "SELECT {0}, sum({1}) AS total FROM caipindingdan {2} GROUP BY {0}".format(xColumnName, yColumnName, where)
        L = []
        cursor = connection.cursor()
        cursor.execute(sql)
        desc = cursor.description
        data_dict = [dict(zip([col[0] for col in desc], row)) for row in cursor.fetchall()] 
        for online_dict in data_dict:
            for key in online_dict:
                if 'datetime.datetime' in str(type(online_dict[key])):
                    online_dict[key] = online_dict[key].strftime(
                        "%Y-%m-%d %H:%M:%S")
                else:
                    pass
            L.append(online_dict)
        msg['data'] = L

        return JsonResponse(msg)

def caipindingdan_alipay(request):
    if request.method in ["POST", "GET"]:
        alipay = AliPay(
            appid=settings.ALIPAY_APP_ID,
            app_notify_url=None,
            app_private_key_string=settings.APP_PRIVATE_KEY_STRING,
            alipay_public_key_string=settings.ALIPAY_PUBLIC_KEY_STRING,
            sign_type=settings.ALIPAY_SIGN_TYPE,
            debug=True,
            config=AliPayConfig(timeout=15)
        )
        
        req_dict = request.session.get("req_dict")

        order_string = alipay.api_alipay_trade_page_pay(
            out_trade_no=req_dict['tradeno'],
            total_amount=req_dict['totalamount'],
            subject=req_dict['subject'],
            return_url='http://localhost:8080/django1mi5m/caipindingdan/notify',
            #notify_url=''
        )
        pay_url = 'https://openapi.alipaydev.com/gateway.do?' + order_string
        pay_url = '<form name="punchout_form" method="post" action="{0}"><input type="hidden" name="biz_content" ><input type="submit" value="立即支付" style="display: none"></form>'.format(pay_url)
        
        return JsonResponse({'code': 0, "data": pay_url})

def caipindingdan_notify(request):
    if request.method in ["POST", "GET"]:
        req_dict = request.session.get("req_dict")
        out_trade_no = req_dict['out_trade_no']
        cursor = connection.cursor()
        
        return redirect('http://localhost:8080/django1mi5m/admin/dist/index.html#/caipindingdan')


def caipindingdan_groupby(request):
    '''
    管理员用户:当表属性isAdmin=”是”,刷出来的用户表也是管理员,即page和list可以查看所有人的考试记录(同时应用于其他表)
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")

        #处理参数
        try:
            page1 = int(req_dict.get("page"))
        except:
            page1 = 1
        try:
            limit1 = int(req_dict.get("limit"))
        except:
            limit1 = 10

        #值为"是"仅能查看自己的记录和add接口后台赋值userid的值
        try:
            __authSeparate__ = caipindingdan.__authSeparate__
        except:
            __authSeparate__ = None

        # print(caipindingdan.getallcolumn(caipindingdan,caipindingdan))
        if __authSeparate__=="是":
            #print("req_dict==============>",req_dict)
            #如果当前表有userid字段,且通过身份认证
            if "userid"  in caipindingdan.getallcolumn(caipindingdan,caipindingdan) and request.session.get("params")!=None:
                #参数增加userid
                req_dict["userid"]=request.session.get("params").get("id")
        #如果当前表没有userid字段,且参数里有userid键值对
        if  "userid" not  in caipindingdan.getallcolumn(caipindingdan,caipindingdan) and "userid" in list(req_dict.keys()):
            #删除参数userid
            del req_dict["userid"]
        try:
            del req_dict["page"]
            del req_dict["limit"]
        except:
            pass
        tablename=request.session.get("tablename")
        if tablename=="users" and req_dict.get("userid")!=None:
            del req_dict["userid"]
        else:
            #判断当前登陆表是否具有管理员权限
            __isAdmin__ = None

            allModels = apps.get_app_config('main').get_models()
            for m in allModels:
                if m.__tablename__==tablename:

                    try:
                        __isAdmin__ = m.__isAdmin__
                    except:
                        __isAdmin__ = None
                    break

            #是,则删除userid参数
            if __isAdmin__=="是":
                del req_dict["userid"]
            else:
                #否,则赋值userid参数
                req_dict["userid"]=request.session.get("params").get("id")
        print("req_dict===========>",req_dict)
        #20200928 去掉总记录数查询.因为只有一条记录,所以总记录数从查询所的记录获取
        #本次查询所有,求总记录数
        # alldata = caipindingdan.objects.filter(**req_dict). \
        #     annotate(userids=Count('userid'),paperids=Count('paperid'),papernames=Count('papername')). \
        #         values("userid", "paperid", "papername","myscore","userids"). \
        #         all()
        # print("alldata=============>",alldata)
        # print("alldata=============>",alldata.  aggregate(myscore=Sum('myscore')))

        #本次分页查询
        start=limit1 * (page1 - 1)
        end=limit1 * (page1 - 1)+limit1+1
        datas = caipindingdan.objects.filter(**req_dict).\
                    annotate(userids=Count('userid'),usernames=Count('username'),paperids=Count('paperid'),papernames=Count('papername')). \
                values("userid", "username", "paperid", "papername","myscore"). \
                    all()[start:end]
        print("datas=============>", datas)
        print("datas=============>", datas.aggregate(myscore=Sum('myscore')))

        #处理分页查询所得数据
        try:
            data = [model_to_dict(i) for i in datas]
        except:
            data = datas
        dataDict = {}
        for i in data:
            keyName1="{}#{}#{}#{}".format(i.get("userid"),i.get("username"),i.get("paperid"),i.get("papername"))
            if dataDict.get(keyName1)==None:
                dataDict[keyName1]={"userid":i.get("userid"),"username":i.get("username"),"paperid":i.get("paperid"),"papername":i.get("papername"),"myscore":i.get("myscore")}
            else:
                dataDict[keyName1]["myscore"]=dataDict.get(keyName1).get("myscore")+i.get("myscore")

        #赋值分页查询所得数据
        dataList =list(dataDict.values())

        # 处理所有查询,计算总页数
        total = len(dataList)
        try:
            div = divmod(total, limit1)
            if div[1] > 0:
                totalPage = div[0] + 1
            else:
                totalPage = div[0]
        except:
            totalPage = 1

        # 赋值分页参数
        msg["data"] = {"pageSize": limit1,
                       "total": total,
                       "totalPage": totalPage,
                       "currPage": page1,
                       "list":dataList
                       }

        return JsonResponse(msg)



def caipindingdan_deleterecords(request):
    '''
    按键值对参数添加删除记录
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code}
        req_dict = request.session.get("req_dict")
        error=caipindingdan.deletebyparams(caipindingdan,caipindingdan,req_dict)
        if error!=None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)
def caipindingdan_flist(request):
    '''
    查看所有开放的帖列表(无需登录)
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code,  "data":{"currPage":1,"totalPage":1,"total":1,"pageSize":10,"list":[]}}
        req_dict = request.session.get("req_dict")

        msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
        msg['data']['pageSize'] = caipindingdan.page(caipindingdan, caipindingdan, req_dict)

        return JsonResponse(msg)




def caipindingdan_list_id(request,id_):
    '''
    查看主贴和所有回帖内容(无需登录)
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {"currPage":1,"totalPage":1,"total":1,"pageSize":10,"childs":[]},"id":int(id_)}

        params = {"id":int(id_)}

        datas = caipindingdan.retrieve(caipindingdan, caipindingdan)


        parent_id=0#当前id,也就是parent_id,找到了下一级,把下一级id赋值给current_id,当做下下一级id的paretn_id
        current_id=0
        start_index=0

        #获取parentid
        for index,i in enumerate(datas):
            if i.get('id')==params.get('id'):
                current_id=parent_id=i.get('id')
                start_index=index
                msg['data'].update(i)
                break

        #把疑似回帖的id放进ids数组
  
        id_data_dict={}#id和详情的键值对
        for i in datas:
            id_data_dict[i.get('id')]=i
        
        dict1={}#部分层级,只获取上下级关系
        for v in id_data_dict.values():
            parentid_=copy.deepcopy(v.get("parentid"))

            id_=copy.deepcopy(v.get("id"))
            if dict1.get(parentid_)==None:
                dict1[parentid_]=[]
            dict1[parentid_].append(id_)


        childs=[]#msg.data.childs
        #填充第一层回帖
        for i  in dict1.get(parent_id,[]):
            child1=copy.deepcopy(id_data_dict.get(i))

            #填充第二层回帖
            if dict1.get(i)!=None:#判断第二次是否还有回帖
                child2=[]
                for j in  dict1.get(i):
                    child3=copy.deepcopy(id_data_dict.get(j))
                    id_=copy.deepcopy(child3.get("id"))

                    if dict1.get(id_)!=None:#判断第三次是否还有回帖
                        child3["childs"]=[]
                        for k in dict1.get(id_):
                            child4=copy.deepcopy(id_data_dict.get(k))
                            id__=copy.deepcopy(child4.get("id"))

                            if dict1.get(id__)!=None:#判断第四次是否还有回帖
                                child4['childs']=[]
                                for l in dict1.get(id__):
                                    child5=copy.deepcopy(id_data_dict.get(l))
                                    id___=copy.deepcopy(child5.get("id"))

                                    if dict1.get(id___)!=None:#判断第五次是否还有回帖
                                        child5['childs']=[]
                                        for m in dict1.get(id___):
                                            child6=copy.deepcopy(id_data_dict.get(m))
                                            id____=copy.deepcopy(child6.get("id"))

                                            if dict1.get(id____)!=None:#判断第六次是否还有回帖
                                                child6['childs']=[]
                                                child7=copy.deepcopy(id_data_dict.get(m))
                                                child7['childs']=[]
                                                for n in dict1.get(id____):
                                                    child7['childs'].append(id_data_dict.get(n))

                                                child6['childs'].append(child7)

                                        child5['childs'].append(child6)

                                child4["childs"].append(child5)

                        child3["childs"].append(child4)

                    child2.append(child3)
                child1['childs']=child2
            else:
                child1['childs']=None

            childs.append(child1)
        print(childs)
        msg['data']['childs']=childs
        return JsonResponse(msg)

原文地址:http://www.cnblogs.com/jsjyms/p/16852494.html

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