在模板中显示django表单字段的值?

这是一个在django1.3中修复的特性请求。

问题是: https://code.djangoproject.com/ticket/10427

基本上,如果您运行的是1.3之后的版本,那么在Django模板中,您可以执行以下操作:

{{ form.field.value|default_if_none:"" }}

或者在金盏2中:

{{ form.field.value()|default("") }}

请注意 field.value() () 省略了,而在Jinja2中,方法调用是显式的。

如果您想知道您正在运行哪个版本的Django,它会在您执行runserver命令时告诉您。

如果您使用的是1.3之前的版本,那么您可能可以使用上面bug中发布的修复程序: https://code.djangoproject.com/ticket/10427#comment:24

您可以通过以下方式从模板执行此操作:

{% if form.instance.some_field %}
      {{form.instance.some_field}}
{% else %}
      {{form.data.some_field}}
{% endif %}

这将显示实例值(如果窗体是用实例创建的,如果您愿意,可以使用initial),或者在发生验证错误时显示POST数据。

这似乎管用。

{{ form.fields.email.initial }}

{{ form.data.email }}

非常简单的例子:

def your_view(request):
  if request.method == 'POST':
    form = YourForm(request.POST)
    if form.is_valid():
      # some code here
  else:
    form = YourForm()

  return render_to_response('template.html', {'form':form})

希望对你有帮助。如果你有任何问题请告诉我。

{{ form.field_name.value }} 对我有用

Jens提出的解决方案是正确的。 但是,如果您使用 实例 (以下示例)django不会填充数据:

def your_view(request):   
    if request.method == 'POST':
        form = UserDetailsForm(request.POST)
        if form.is_valid():
          # some code here   
        else:
          form = UserDetailsForm(instance=request.user)

from django import forms 
class BaseModelForm(forms.ModelForm):
    """
    Subclass of `forms.ModelForm` that makes sure the initial values
    are present in the form data, so you don't have to send all old values
    for the form to actually validate.
    """
    def merge_from_initial(self):
        filt = lambda v: v not in self.data.keys()
        for field in filter(filt, getattr(self.Meta, 'fields', ())):
            self.data[field] = self.initial.get(field, None)

然后,简单视图示例如下所示:

def your_view(request):   if request.method == 'POST':
    form = UserDetailsForm(request.POST)
    if form.is_valid():
      # some code here   
    else:
      form = UserDetailsForm(instance=request.user)
      form.merge_from_initial()

#forms.py
class EditProfileForm(forms.ModelForm):
    first_name = forms.CharField(label='First Name',
                                 widget=forms.TextInput(
                                 attrs={'class': 'form-control'}),
                                 required=False)
    last_name = forms.CharField(label='Last Name',
                                 widget=forms.TextInput(
                                 attrs={'class': 'form-control'}),
                                 required=False)
    # username = forms.CharField(widget=forms.TextInput(
    #                              attrs={'class': 'form-control'}),
    #                              required=True)
    address = forms.CharField(max_length=255, widget=forms.TextInput(
                                 attrs={'class': 'form-control'}),
                                 required=False)
    phoneNumber = forms.CharField(max_length=11,
                                 widget=forms.TextInput(
                                 attrs={'class': 'form-control'}),
                                 required=False)
    photo = forms.ImageField(label='Change Profile Image', required=False)

    class Meta:
        model = User
        fields = ['photo', 'first_name', 'last_name', 'phoneNumber', 'address']
                  # 'username',



#views.py
def edit_user_profile(request, username):
    user = request.user
    username = User.objects.get(username=username)
    user_extended_photo = UserExtended.objects.get(user=user.id)
    form = EditProfileForm(request.POST or None, request.FILES, instance=user)
    user_extended = UserExtended.objects.get(user=user)
    if request.method == 'POST':
        if form.is_valid():
            # photo = UserExtended(photo=request.FILES['photo'] or None, )
            user.first_name = request.POST['first_name']
            user.last_name = request.POST['last_name']
            user_extended.address = request.POST['address']
            user_extended.phoneNumber = request.POST['phoneNumber']
            user_extended.photo = form.cleaned_data["photo"]
            # username = request.POST['username']
            user_extended.save()
            user.save()

            context = {
                'form': form,
                'username': username,
                'user_extended_photo': user_extended_photo,
            }

            return render(request, 'accounts/profile_updated.html', context)
    else:
        photo = user_extended.photo
        first_name = user.first_name
        last_name = user.last_name
        address = user_extended.address
        phoneNumber = user_extended.phoneNumber
        form = EditProfileForm(
            initial={'first_name': first_name, 'last_name': last_name,
                                   'address': address, 'phoneNumber': phoneNumber,
                                   'photo': photo})
    context = {
        'form': form,
        'username': username,
        'user_extended_photo': user_extended_photo,

    }
    return render_to_response('accounts/edit_profile.html', context,
                                 context_instance=RequestContext(request))

#edit_profile.html
  <form action="/accounts/{{ user.username }}/edit_profile/" method="post" enctype='multipart/form-data'>
                                    {% csrf_token %}
                                        <div class="col-md-6">
                                            <div class="form-group">
                                                {{ form.as_p }}
                                            </div>
                                        </div>
                                    <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
                                    <button type="submit"  value="Update Profile" class="btn btn-info btn-fill pull-right">Update Profile</button>
                                    <div class="clearfix"></div>
                                </form>

我试图用一种方式来解释这一点,这样初学者可能会发现它更容易理解。密切关注 else:

        photo = user_extended.photo
        first_name = user.first_name
        last_name = user.last_name
        address = user_extended.address
        phoneNumber = user_extended.phoneNumber
        form = EditProfileForm(
            initial={'first_name': first_name, 'last_name': last_name,
                                  'address': address, 'phoneNumber': phoneNumber,
                                  'photo': photo}) 

它是获得属性值的东西,例如:

<p><label for="id_first_name">First Name:</label> <input class="form-control" id="id_first_name" name="first_name" type="text" value="Emmanuel" /></p>
<p><label for="id_last_name">Last Name:</label> <input class="form-control" id="id_last_name" name="last_name" type="text" value="Castor" /></p>

如果用实例而不是POST数据填充了表单(如建议的答案所要求的),则可以使用{form.instance.my\u field\u name}访问数据。

我想显示formset字段的值。我总结了这个解决方案,它应该也适用于正规形式:

{% if form.email.data %} {{ form.email.data }}
{% else %} {{ form.initial.email }} 
{% endif %}

上面的解决方案对我来说效果不太好,我怀疑它们在前缀形式(如向导和表单集)的情况下是否有效。 解决方案使用 {{ form.data.email }}

{{form.field_name.value}} 仅Django 1.3+。

在django1.2上,{{form.data.field}}和{form.field.data}都可以,但不是{form.field.value}。
正如其他人所说,{form.field.value}仅是Django 1.3+,但在中没有规范 https://docs.djangoproject.com/en/1.3/topics/forms/ . 可以在 https://docs.djangoproject.com/en/1.4/topics/forms/

{{form.fields.email}}