在 Django 模板中有两种不同的形式

Question

在我的项目中，我有一个模板，我试图在其中为不同的用例放置两个表单。我以前从来没有遇到过这个问题，所以我真的不知道从哪里开始在同一个页面中使用两个表单。

起初我想创建另一个视图来处理每个表单，但我认为这个解决方案会在我的模板呈现方面产生问题，如果我应该再次使用另一个模板出现这个问题，则不可持续。

经过一些研究，我找到了一个解决方案，但它适用于基于类的视图，但我想避免这种情况，因为我的视图已经是基于函数的视图，我必须在我的代码。但是，如果 CBV 是最好的选择，我可以做出改变。

每一个建议都值得赞赏

第一个字段

class FirstForm(forms.ModelForm):

    firstfield = forms.CharField() 
    secondfield = forms.CharField()
    class Meta:
        model = MyModel
        fields = ("firstfield", "secondfield")
    def save(self, commit=True):
        send = super(FirstForm, self).save(commit=False)
        if commit:
            send.save()
        return send**

第二种形式

class SecondForm(forms.ModelForm):

    firstfield = forms.FloatField() 
    secondfield = forms.Floatfield()
    thirdfield = forms.CharField()

    class Meta:
        model = MyModelTwo
        fields = ("firstfield", "secondfield", "thirdfield")

    def save(self, commit=True):
        send = super(SecondForm, self).save(commit=False)
        if commit:
            send.save()
        return send

模板

  <h3> First Form </h3>
  <form method="post" novalidate>
      {% csrf_token %}
      {% include 'main/includes/bs4_form.html' with form=form %}
      <button type="submit" class="btn btn-danger" style="background-color: red;">SUBMIT</button>
  </form>

  <h3> Second Form </h3>
  <form method="post" novalidate>
      {% csrf_token %}
      {% include 'main/includes/bs4_form.html' with form=form %}
      <button type="submit" class="btn btn-danger" style="background-color: red;">SUBMIT</button>
  </form>

views.py

def myview(request):

    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        form = FirstForm(request.POST)
        # check whether it's valid:
        if form.is_valid():
            # process the data in form.cleaned_data as required
            # ...
            # redirect to a new URL:
            send = form.save()
            send.save()
            messages.success(request, f"Success")

    # if a GET (or any other method) we'll create a blank form
    else:
        form = FirstForm()

    return render(request,
                  "main/mytemplate.html",
                  context={"form":form})

有人告诉我在我的视图中使用上下文，但我不知道如何将它集成到我的视图中。这是一个可行的解决方案，还是有更好的方法来做到这一点？

context = {
        'first_form': TradingForm(request.POST or None),
        'second_form': LimitSellForm(request.POST or None),
    }

Answer 1

这是一种方法。为您的按钮添加name 属性，如下所示：

<button name="button1" type="submit" class="btn btn-danger" style="background-color: red;">SUBMIT</button>
...
<button name="button2" type="submit" class="btn btn-danger" style="background-color: red;">SUBMIT</button>

然后在你的视图中，你可以通过在帖子中查找按钮名称来检查提交了哪个表单：

def myview(request):
    if request.method == 'POST':
        if 'button1' in request.POST:
            form1 = FirstForm(request.POST)
            if form1.is_valid():
                # do what needs to be done and redirect
        if 'button2' in request.POST:
            form2 = form = SecondForm(request.POST)
            if form2.is_valid():
                # do what needs to be done and redirect
    else:
        form1 = FirstForm()
        form2 = SecondForm()

    return render(request, "main/mytemplate.html", 
                  context={'form1': form1, 'form2': form2})

Answer 2

您可以使用 TemplateView 代替普通视图功能并在下面添加此功能

 def get_context_data(self, **kwargs):
        context = {
        'first_form': TradingForm(request.POST or None),
        'second_form': LimitSellForm(request.POST or None),
         }

您可以查看文档： https://docs.djangoproject.com/en/2.2/ref/class-based-views/base/#templateview