Question

我试图将一个项目添加到一个数组并返回更新的模型。

我这样提出我的要求：

addCarToDriver(CarToAdd) {
 const self = this;
    request
       .put('api/drivers/' + this.state.race._id)
       .send({
        car: CarToAdd})
       .end(function(err, res) {
         console.log(res.body);
        self.setState({race: res.body});
       });
}

它在服务器上点击：

MyRace.findByIdAndUpdate(
             req.params.myrace_id,
             { $push: { 'cars': req.body.car  } },
             function(er, model) {
             if (er) {
               console.log(err);
               return res.send(err);
              }
              console.log(model);
              return res.json(model);
            });

现在在请求回调中，我希望记录新的更新模型，即使用新的Car。它不是。＆＃34; old＆＃34;版本记录。但是，如果我刷新页面，模型将使用新车进行更新。

当然我需要在回调中直接设置state。关于如何做到这一点的任何提示？

Answer 1

默认情况下，

Mongoose 4 has changed ''' Form used in patient registration. Extends UserCreationForm ''' class PatientRegisterForm(UserCreationForm): email = EmailField(required = True) insurance_id = forms.CharField(required=True, label="Insurance ID") insurance_provider = forms.CharField(required=True, label="Insurance Provider") class Meta: model = User fields = ("email", "password1", "password2", "Insurance ID", "Insurance Provider") def clean_password2(self): password1 = self.cleaned_data.get("password1") password2 = self.cleaned_data.get("password2") if password1 and password2 and password1 != password2: raise forms.ValidationError( self.error_messages['password_mismatch'], code='password_mismatch', ) return password2 def save(self, commit=True): user=super(UserCreationForm, self).save(commit=False) user.set_password(self.clean_password2()) user.insurance_id = self.cleaned_data["insurance_id"] user.insurance_provider = self.cleaned_data["insurance_provider"] if commit: user.save() return user ''' This displays the patient login form. Unique because of insurance numbers ''' def patient_registration(request): if request.POST: form = PatientRegisterForm(request.POST) if form.is_valid(): new_user = form.save() new_patient = Patient(user = new_user) new_patient.save() temp= Event(activity= '\n'+new_patient.user.get_full_name()+" has registered as a patient ") temp.save() return HttpResponseRedirect('/login/') # TODO : Refer them to there home page else: return HttpResponseRedirect('/login/') # TODO : Ditto ^^^ else: form = PatientRegisterForm() return render(request, "main_site/patient_registration.html", {"form":form})行为会返回旧文档，如果您想要新的更新版本，则需要传递.findAndUpdate，because that was the actual behavior in MongoDB

您可以修补查询以将{new:true}设置为旧的方式：

options.new=true

Mongoose不会发送更新的结果

1 个答案: