####################FBV
def pressedit(request, edit_id, test_id):

    obj = models.presslist.objects.get(pk=edit_id)

    print(test_id, edit_id)

    msg = ''

    if request.method == 'POST':

        obj.name = request.POST.get('pressname')

        if models.presslist.objects.filter(name=obj.name):

            msg = '已存在'

        if not obj.name:

            msg = '不能为空'

        if not models.presslist.objects.filter(name=obj.name) and obj.name:

            obj.save()

            return redirect(reverse('presslist'))

    return render(request, 'cbsadd-edit.html', {'obj': obj, 'msg': msg})

#######################CBV

class pressedit1(View):

    def get(self, request, edit_id, test_id):

        obj = models.presslist.objects.get(pk=edit_id)

        msg = ''

        print(edit_id, test_id)

        print(id(obj))

        return render(request, 'cbsadd-edit.html', {'obj': obj, 'msg': msg})

    def post(self, request, edit_id, test_id):

        msg = ''

        obj = models.presslist.objects.get(pk=edit_id)

        obj.name = request.POST.get('pressname')

        print(id(obj))

        if models.presslist.objects.filter(name=obj.name):

            msg = '已存在'

        if not obj.name:

            msg = '不能为空'

        if not models.presslist.objects.filter(name=obj.name) and obj.name:

            obj.save()

            return redirect(reverse('presslist'))

        return render(request, 'cbsadd-edit.html', {'obj': obj, 'msg': msg})

import time

import functools

from django.utils.decorators import method_decorator

def wapp(func):

    @functools.wraps(func)

    def inner(*args, **kwargs):

        time1 = time.time()

        ret = func(*args, **kwargs)

        print(time.time() - time1)

        return ret

    return inner

#######FBV
#url

url(r'^press/edit/(?P<edit_id>\d+)/(?P<test_id>\d+)/', views.pressedit, name='pressedit'),

#views
@wapp
def presslist(request):
    msg_all = models.presslist.objects.all()
    return render(request, 'cbs.html', {'msg': msg_all})

#######CBV
#url

url(r'^press/edit/(?P<edit_id>\d+)/(?P<test_id>\d+)/', views.pressedit1.as_view(), name='pressedit'),

　#views

@method_decorator(wapp, name='get')　　　　###通过method_decorator这个装饰器指定自己的装饰器 和要装饰的函数 ,可以直接作用dispatch函数,对所有函数生效
class pressedit1(View):

    def get(self, request, edit_id, test_id, msg=''):
        obj = models.presslist.objects.get(pk=edit_id)
        return render(request, 'cbsadd-edit.html', {'obj': obj, 'msg': msg})

    def post(self, request, edit_id, test_id):
        msg = ''
        obj = models.presslist.objects.get(pk=edit_id)
        obj.name = request.POST.get('pressname')
        if models.presslist.objects.filter(name=obj.name):
            msg = '已存在'
        if not obj.name:
            msg = '不能为空'
        if not models.presslist.objects.filter(name=obj.name) and obj.name:
            obj.save()
            return redirect(reverse('presslist'))
        return self.get(request, edit_id, test_id, msg)