django 上传文件及反馈信息

from django.shortcuts import render,HttpResponse
from django.views import View
from Fiskars.models import *
from django.conf import settings
from Fiskars.forms import *
import os
import xlrd

class IndexView(View):
    def get(self,request):
        return render(request,'index.html')

class UploadView(View):
    def get(self,request):
        obj = BalanceSheetForm()
        return render(request,'upload.html',{'obj':obj})

    def post(self,request):
        if 'F1' in request.POST:
            result=uploadfile('F1',request)
        elif 'F2' in request.POST:
            result=uploadfile('F2',request)
        elif 'F0' in request.POST:
            obj=BalanceSheetForm(request.POST)
            if not obj.is_valid():
                msg=obj.non_field_errors()
            else:
                msg='msg ok'
                obj.save()
            return render(request,'upload.html',{'msg':msg,'obj':obj})
        return HttpResponse(result)


def uploadfile(key,request):
        myFile=request.FILES.get('myfile',None)
        if not myFile:
            return HttpResponse('no file uploaded')
        f=open(os.path.join(settings.BASE_DIR,'upload',myFile.name),'wb+')
        for chunk in myFile.chunks():
            f.write(chunk)
        f.close()

        wb=xlrd.open_workbook(os.path.join(settings.BASE_DIR,'upload',f.name)).sheet_by_index(0)
        records = []
        err = ''
        if key=='F1':
            #balance sheet
            for i in range(1,wb.nrows):
                if AccountSheet.objects.filter(code=wb.cell(i,2).value).first() is not None:
                    data=BalanceSheetForm({
                            'begin_dr':wb.cell(i,5).value,
                            'begin_cr':wb.cell(i,6).value,
                            'happen_dr':wb.cell(i,7).value,
                            'happen_cr':wb.cell(i,8).value,
                            'end_dr':wb.cell(i,9).value,
                            'end_cr':wb.cell(i,10).value,
                            'accounttype':AccountSheet.objects.filter(code=wb.cell(i,2).value).first().accounttype.type,
                            'code':AccountSheet.objects.filter(code=wb.cell(i,2).value).first().id,#inquiry
                            'currency':'CNY',          #AccountSheet.objects.filter(code=wb.cell(i,2).value).first().currency,
                            'group':request.POST.get('group'),           #每次上传要改request.POST.get('group')
                            'period':PeriodSheet.objects.filter(year=wb.cell(i,1).value[-7:-3],month=int(wb.cell(i,1).value[-2:])).first().id
                    })
                    if not data.is_valid():
                        err=err+'row'+str(i)+', '+data.non_field_errors()+'.'
                        if i==wb.nrows-1:
                            return err
                    records.append(data)
            if len(records)>0:
                for each in records:
                    each.save()
                return 'upload balance sheet successfully.'
            else:
                return 'no records in the uploaded BS file'
        elif key=='F2':
            #deprtment cost
            for a in range(1,wb.nrows):
                for b in range(5,wb.ncols):
                    if AccountSheet.objects.filter(code=wb.cell(a,0).value).first() is not None and 
                            Department.objects.filter(code=wb.cell(0, b).value[:3]).first() is not None:
                        y=request.POST.get('year')
                        m=request.POST.get('month')
                        g=request.POST.get('group')
                        data=DepartmentCostForm({
                            'cost':wb.cell(a+1,b).value,
                            'costaccount':AccountSheet.objects.filter(code=wb.cell(a,0).value).first().id,
                            'department':Department.objects.filter(code=wb.cell(0,b).value[:3]).first().id,
                            'period':PeriodSheet.objects.filter(year=2018,month=5).first().id,
                            'group':'MTD'
                        })
                        if not data.is_valid():
                            err=err+'row'+str(a)+', '+data.non_field_errors()+', '
                            if a==wb.nrows-1:
                                return err
                        records.append(data)
            if len(records)>0:
                for each in records:
                    each.save()
                return 'upload department cost successfully.'
            else:
                return 'no records in the uploaded dept cost file.'
        return 'no such submit button'