[英]Cleaning up CBV
我有這個可以按預期工作的課程
class UpdateView(TemplateView):
def get(self, request, username):
id = User.objects.get(username = username).id
user = get_object_or_404(User, id = id)
employee = get_object_or_404(Employee, user_id = id)
form_user = UserForm(instance=user)
form_employee = EmployeeForm(instance=employee)
args = {'form_user': form_user,'form_employee': form_employee, 'username': username}
return render(request, 'user/update.html', args)
def post(self, request, username):
id = User.objects.get(username = username).id
user = get_object_or_404(User, id = id)
employee = get_object_or_404(Employee, user_id = id)
form_user = UserForm(request.POST, instance=user)
form_employee = EmployeeForm(request.POST, instance=employee)
if form_user.is_valid() and form_employee.is_valid():
form_user.save()
form_employee.save()
return redirect('user:list')
args = {'form_user': form_user, 'form_employee': form_employee, 'username': username}
return render(request, 'user/update.html', args)
我的問題是get和post方法都使用相同的id,user和employee變量。 我該如何清理?
我知道我可以創建一個渲染方法
def render(self, request, username):
args = {'form_user': form_user, 'form_employee': form_employee, 'username': username}
return render(request, 'user/update.html', args)
然后打電話
return self.render(request)
在get和post方法的末尾,因此我也不必兩次定義args,但是目前這與用戶名沖突。 這就是為什么我想首先用3個變量解決問題。
由於此視圖有兩種形式,因此它不適用於任何基於通用類的視圖。
基於功能的視圖將避免重復的上下文,並且易於遵循。
def update_employee(request, username):
user = get_object_or_404(User, username=username)
employee = get_object_or_404(Employee, user=user)
if request.method == 'POST':
form_user = UserForm(request.POST, instance=user)
form_employee = EmployeeForm(request.POST, instance=employee)
if form_user.is_valid() and form_employee.is_valid():
form_user.save()
form_employee.save()
return redirect('user:list')
else:
form_user = UserForm(instance=user)
form_employee = EmployeeForm(instance=employee)
args = {'form_user': form_user,'form_employee': form_employee, 'username': username}
return render(request, 'user/update.html', args)
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