：Django表单 - 输入框不在模板中呈现

Question

我无法让我的表单显示在我的呈现模板上。提交按钮在那里，但没有别的。我有两种形式，其中一种很好，我无法展示EstimateForm。

编辑：我忘了提及估算表单是基本模板的一部分，尤其是它在网站页脚中。联系人模板正在扩展基本模板。基本模板中的表单不显示在任何模板上。对不起，没有把这个信息。

这是模板

<form role="form" action="" method="post" class="contact-form" style="margin-top: 25px"> 
    {% csrf_token %} 
    {{ estimate_form.as_p }} 
    <button type="submit" class="thm-btn">Submit</button> 
</form> 

这是获取呈现

<form role="form" action="" method="post" class="contact-form" style="margin-top: 25px" novalidate="novalidate"> 
    <input type="hidden" name="csrfmiddlewaretoken" value="lfudMn6U8TBJ2czhZM4UZTINnP6xoLZs"> 

    <button type="submit" class="thm-btn">Submit</button> 
</form> 

形式。 PY

class ContactForm(forms.Form): 
    contact_name = forms.CharField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Name*'})) 
    contact_email = forms.EmailField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Email*'})) 
    contact_phone = forms.CharField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Phone Number*'})) 
    content = forms.CharField(
     required=True, 
     widget=forms.Textarea(attrs={'placeholder': 'Your comments'}) 
    ) 


class EstimateForm(forms.Form): 
    contact_name = forms.CharField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Name*'})) 
    contact_email = forms.EmailField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Email*'})) 
    contact_phone = forms.CharField(required=True, widget=forms.TextInput(attrs={'placeholder': 'Your Phone Number*'})) 

    def __init__(self, *args, **kwargs): 
     super(BottomForm, self).__init__(*args, **kwargs) 
     self.fields['contact_name'].label = "" 
     self.fields['contact_email'].label = "" 
     self.fields['contact_phone'].label = "" 

views.py

def contact(request): 
    form_class = ContactForm 

    if request.method == 'POST': 
     form = form_class(data=request.POST) 

     if form.is_valid(): 
      contact_name = request.POST.get(
       'contact_name' 
       , '') 
      contact_email = request.POST.get(
       'contact_email' 
       , '') 
      contact_phone = request.POST.get(
       'contact_phone' 
       , '') 
      form_content = request.POST.get('content', '') 

      # Email the profile with the 
      # contact information 
      template = get_template('contact_template.txt') 
      context = Context({ 
       'contact_name': contact_name, 
       'contact_email': contact_email, 
       'contact_phone': contact_phone, 
       'form_content': form_content, 
      }) 
      content = template.render(context) 
      send_mail('Email from your website', content, context['contact_email'], 
         ['email'], 
         fail_silently=False) 
     return redirect('/contact') 
    return render(request, 'main/contact.html', { 
     'form': form_class, 
    }) 


def estimate(request): 
form_class = EstimateForm 

if request.method == 'POST': 
    form = form_class(data=request.POST) 

    if form.is_valid(): 
     contact_name = request.POST.get(
      'contact_name' 
      , '') 
     contact_email = request.POST.get(
      'contact_email' 
      , '') 
     contact_phone = request.POST.get(
      'contact_phone' 
      , '') 
     form_content = request.POST.get('content', '') 

     # Email the profile with the 
     # contact information 
     template = get_template('contact_template.txt') 
     context = Context({ 
      'contact_name': contact_name, 
      'contact_email': contact_email, 
      'contact_phone': contact_phone, 
      'form_content': form_content, 
     }) 
     content = template.render(context) 
     send_mail('Email from your website', content, context['contact_email'], 
        ['@gmail.com'], 
        fail_silently=False) 
    return redirect('/contact') 
return render(request, 'main/contact.html', { 
    'estimate': form_class, 
}) 

Answer 1

你逝去的形式与关键 '估计'

return render(request, 'main/contact.html', { 
    'estimate': form_class, 
}) 

但在模板您正在试图通过

{{ estimate_form.as_p }} 

进行访问

只要将其更正为{{ estimate.as_p }}

Answer 2

在您定义的视图中只有ContactForm为form_class。但是你没有定义estimate_form，这就是为什么你没有看到它。 所以你的观点必须是这样的：

def contact(request): 
form_class = ContactForm 

if request.method == 'POST': 
    form = form_class(data=request.POST) 

    if form.is_valid(): 
     contact_name = request.POST.get(
      'contact_name' 
      , '') 
     contact_email = request.POST.get(
      'contact_email' 
      , '') 
     contact_phone = request.POST.get(
      'contact_phone' 
      , '') 
     form_content = request.POST.get('content', '') 

     # Email the profile with the 
     # contact information 
     template = get_template('contact_template.txt') 
     context = Context({ 
      'contact_name': contact_name, 
      'contact_email': contact_email, 
      'contact_phone': contact_phone, 
      'form_content': form_content, 
     }) 
     content = template.render(context) 
     send_mail('Email from your website', content, context['contact_email'], 
        ['email'], 
        fail_silently=False) 
    return redirect('/contact') 
return render(request, 'main/contact.html', { 
    'form': form_class, 'estimate_form': estimate_form 
}) 

Answer 3

你在这里至少有四个方面的问题，但不是所有的人都与你问的问题。

首先，您将表单类而不是实例传递给模板。你需要首先实例化这个类。

其次，您将其传入名称为estimate的模板中，但在模板中将其称为estimate_form。你需要使用相同的名字。

第三，当表单无效时，您不会将带有错误的实例化表单传递回模板，因此用户永远不会知道它为何无效。

第四，当表单有效时，您应该从form.cleaned_data获取数据，而不是直接从POST获取数据。

全部放在一起：

def estimate(request): 
    form_class = EstimateForm 

    if request.method == 'POST': 
     form = form_class(data=request.POST) 

     if form.is_valid(): 
      contact_name = form.cleaned_data['contact_name'] 
      contact_email = form.cleaned_data['contact_email'] 
      contact_phone = form.cleaned_data['contact_phone'] 
      form_content = form.cleaned_data['content'] 

      # Email the profile with the 
      # contact information 
      template = get_template('contact_template.txt') 
      context = Context({ 
       'contact_name': contact_name, 
       'contact_email': contact_email, 
       'contact_phone': contact_phone, 
       'form_content': form_content, 
      }) 
      content = template.render(context) 
      send_mail('Email from your website', content, context['contact_email'], 
         ['binford.blake@gmail.com'], 
         fail_silently=False) 
     return redirect('/contact') 
    else: 
     form = form_class() 
    return render(request, 'main/contact.html', { 
     'estimate_form': form, 
    })