我创建了一个表单,当输入页面从json文件加载初始数据然后我可以编辑并以相同的形式保存数据。所有工作都很完美,但每次按下提交按钮数据库都接受两行相同的数据。任何帮助赞赏。
views.py
def form_save_and_edit(request, id=None, template_name='create.html'):
""" referring data from "model_from_json()",
making data visible within another function """
func = model_from_json()
""" savind and editing form data in the same form """
form = UserDataForm(request.POST)
if request.POST:
updated_field = form.save()
last_name = request.session['last_name'] = updated_field.last_name
first_name = request.session['first_name'] = updated_field.first_name
email = request.session['email'] = updated_field.email
skype = request.session['skype'] = updated_field.skype
form = UserDataForm({
'last_name': last_name,
'first_name': first_name,
'skype':skype,
'email':email
})
redirect_url = reverse('create')
message = messages.success(request, "You successfully updated your profile!")
if form.is_valid():
form.save()
else:
form = UserDataForm({
'last_name': func['last_name'],
'first_name':func['first_name'],
'email':func['email'],
'skype':func['skype'],
})
message = messages.success(request, "You just loaded your profile initial data")
return render_to_response('create.html', {'form': form,}, context_instance=RequestContext(request))
答案 0 :(得分:1)
您似乎在form.save()
语句中调用了两次。一旦在方法的开头,这里:
updated_field = form.save()
最后的另一个:
if form.is_valid():
form.save()