如何在 django 中创建与另一个模型一对一关系的模型表单 [英] How can create a model form in django with a one-to-one relation with another model

问题描述

我想创建一个与另一个模型具有一对一关系的模型表单.即模型 1 与模型 2 具有一对一的关系.我希望我的表单显示来自 Model1 和 Model2 的所有字段.还有在视图中显示此内容的最佳方式是什么.

I want to create a model form with a one-to-one relation with another model. i.e Model1 has a one-to-one relation with Model2. I want my form to show all the fields from Model1 as well as Model2. Also what is the best way to show this in a view.

推荐答案

您无需为两个模型创建单个表单.使用两个 django 表单并将它们放在单个

标签中:

You don't need to create the single form for two models. Use two django forms and place them inside the single <form> tag:

class Model1Form(forms.ModelForm):
    class Meta:
        model = Model1

class Model2Form(forms.ModelForm):
    class Meta:
        model = Model2
        exclude = ('model1_one_to_one_field', )

def create_models(request):
    if request.method == 'POST':
        form1 = Model1Form(request.POST)
        form2 = Model2Form(request.POST)
        if all([form1.is_valid(), form2.is_valid()]):
            model1 = form1.save()
            model2 = form2.save(commit=False)
            model2.model1_one_to_one_field = model1
            model2.save()
            return redirect('create_models_success')
    else:
        form1 = Model1Form()
        form2 = Model2Form()
    return render(request, 'create_models.html',
                      {'form1': form1, 'form2': form2})

然后是 create_models.html 模板:

<form action="." method="POST">
    {% csrf_token %}
    {{ form1.as_p }}
    {{ form2.as_p }}
    <button type="submit">Submit</button>
</form>

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