Question

如何在模板中设置who和image的值？

class CommentForm(ModelForm):
    who = forms.CharField(widget=forms.HiddenInput())
    image = forms.ImageField(widget=forms.HiddenInput())

    class Meta:
        model = Comments
        fields = ['who', 'image', 'content']

它不起作用（原始文本）：

<form method='POST' action=''>
    {% csrf_token %}
    {% render_field comment_form.content class="form-control form-control-sm" placeholder='Comment..' %}
    {% render_field comment_form.who class="form-control form-control-sm" value='{{ request.user.profile.pk }}' %}
    {% render_field comment_form.image class="form-control form-control-sm" value='{{ image.pk }}' %}
    <input class="btn btn-primary btn-sm" type="submit" value="Add comment">
</form>

我的views.py：

class ProfileView(DetailView):
    comment_form = CommentForm()
    queryset = Profile.objects.all()
    context_object_name = 'me'
    template_name = 'profile.html'

    def get_context_data(self, **kwargs):
        context = super(ProfileView, self).get_context_data(**kwargs)
        context['comment_form'] = self.comment_form
        return context

Answer 1

在视图中实例化表单后，您需要设置表单字段的the initial property。像这样：

class ProfileView(DetailView):
    comment_form = CommentForm()
    queryset = Profile.objects.all()
    context_object_name = 'me'
    template_name = 'profile.html'

    def get_context_data(self, **kwargs):
        context = super(ProfileView, self).get_context_data(**kwargs)
        context['comment_form'] = self.comment_form
        # This sets the initial value for the field:
        context['comment_form'].fields['who'].initial = self.request.user.profile.pk
        return context

Answer 2

<form method='POST' action=''>
    {% csrf_token %}
    {% render_field comment_form.content class="form-control form-control-sm" placeholder='Comment..' %}
    {% render_field comment_form.who class="form-control form-control-sm" value='{{ comment_form.who }}' %}
    {% render_field comment_form.image class="form-control form-control-sm" value='{{ comment_form.image }}' %}
    <input class="btn btn-primary btn-sm" type="submit" value="Add comment">
</form>

Answer 3

这是一个古老的问题，但我会尽我所能来帮助那些有需要的人。您可以在视图中动态设置初始值

Django文档中的

链接：https://docs.djangoproject.com/en/3.1/ref/forms/api/#dynamic-initial-values

使用initial在运行时声明表单字段的初始值。例如，您可能想用当前会话的用户名填写用户名字段。

要实现此目的，请对Form使用初始参数。如果提供此参数，则应为将字段名称映射到初始值的字典。仅包括您要为其指定初始值的字段；不必在表单中包含每个字段

例如

comment_form = CommentForm(initial={'who ': request.user.profile.pk})

Answer 4

您可以执行以下操作。这是一种纯HTML方法。在from内添加

<input type="hidden" name="content" value="{{value}}">

将field放在name属性内，并将值设置为value属性内所需的任何内容。

Django如何在模板中设置隐藏输入的值

4 个答案: