如何使用CreateView Django在模板中显示验证错误

发布于 2025-02-08 21:59:56 字数 330 浏览 0 评论 0原文

我正在使用扩展的用户模型和一个通用的CreateView。

class SignUp(CreateView):
    form_class = forms.SignUpForm
    success_url = '/accounts/login/'
    template_name = 'accounts/signup.html'

如何访问模板中的表单验证错误？它们必须在那里，因为当我做{{form.as_p}}时，出现错误。我尝试了{{form.errors}}和{{field.errors}}}，但是其中没有什么。我可以在模板中调用一个简单的标签以显示错误吗？谢谢。

原文

I am using an extended User model and a generic CreateView.

class SignUp(CreateView):
    form_class = forms.SignUpForm
    success_url = '/accounts/login/'
    template_name = 'accounts/signup.html'

How do I access the form validation errors in my template? They must be there because when I do {{ form.as_p }} the errors show up. I have tried {{ form.errors }} and {{ field.errors }} but there is nothing in them. Is there a simple tag I can call in my template to show the errors? Thanks.

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孤城病女 2025-02-15 21:59:56

如果愿意，您可以手动执行。每个字段都可以使用{form.name_of_field}}作为表单的属性可用，在Django模板中，将适当地渲染。例如：

{{ form.non_field_errors }}
<div class="fieldWrapper">
    {{ form.subject.errors }}
    <label for="{{ form.subject.id_for_label }}">Email subject:</label>
    {{ form.subject }}
</div>
<div class="fieldWrapper">
    {{ form.message.errors }}
    <label for="{{ form.message.id_for_label }}">Your message:</label>
    {{ form.message }}
</div>
<div class="fieldWrapper">
    {{ form.sender.errors }}
    <label for="{{ form.sender.id_for_label }}">Your email address:</label>
    {{ form.sender }}
</div>
<div class="fieldWrapper">
    {{ form.cc_myself.errors }}
    <label for="{{ form.cc_myself.id_for_label }}">CC yourself?</label>
    {{ form.cc_myself }}
</div>

如果您想在顶页上循环一次所有错误。

  {% if form.non_field_errors %}
    <ul>
      {% for error in form.non_field_errors %}
        <li>{{ error }}</li>
      {% endfor %}
    </ul>
  {% endif %}

如果您在每个表单字段中都使用相同的html，则可以通过依次使用{％for％}循环循环浏览每个字段来减少重复代码：

{% for field in form %}
    <div class="fieldWrapper">
        {{ field.errors }}
        {{ field.label_tag }} {{ field }}
        {% if field.help_text %}
        <p class="help">{{ field.help_text|safe }}</p>
        {% endif %}
    </div>
{% endfor %}

您可以检查许多方法在下面的django文档中执行此操作。 URL
https：//docs.djangoproject .com/en/4.0/topics/forms/#looping-over-the-form-s-fields

you can do it manually if you like. Each field is available as an attribute of the form using {{ form.name_of_field }}, and in a Django template, will be rendered appropriately. For example:

{{ form.non_field_errors }}
<div class="fieldWrapper">
    {{ form.subject.errors }}
    <label for="{{ form.subject.id_for_label }}">Email subject:</label>
    {{ form.subject }}
</div>
<div class="fieldWrapper">
    {{ form.message.errors }}
    <label for="{{ form.message.id_for_label }}">Your message:</label>
    {{ form.message }}
</div>
<div class="fieldWrapper">
    {{ form.sender.errors }}
    <label for="{{ form.sender.id_for_label }}">Your email address:</label>
    {{ form.sender }}
</div>
<div class="fieldWrapper">
    {{ form.cc_myself.errors }}
    <label for="{{ form.cc_myself.id_for_label }}">CC yourself?</label>
    {{ form.cc_myself }}
</div>

and if you want to loop all errors once on the top page.

  {% if form.non_field_errors %}
    <ul>
      {% for error in form.non_field_errors %}
        <li>{{ error }}</li>
      {% endfor %}
    </ul>
  {% endif %}

If you’re using the same HTML for each of your form fields, you can reduce duplicate code by looping through each field in turn using a {% for %} loop:

{% for field in form %}
    <div class="fieldWrapper">
        {{ field.errors }}
        {{ field.label_tag }} {{ field }}
        {% if field.help_text %}
        <p class="help">{{ field.help_text|safe }}</p>
        {% endif %}
    </div>
{% endfor %}

you can check many methods to do that in Django documentation in the below URL
https://docs.djangoproject.com/en/4.0/topics/forms/#looping-over-the-form-s-fields

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