在Django中添加包含html表单和模型表单的表单的验证错误

from django import forms

class MyForm(forms.Form):
    name = forms.CharField(max_length=100)
    email = forms.EmailField()

    def clean_name(self):
        name = self.cleaned_data.get('name')
        if len(name) < 3:
            raise forms.ValidationError("Name should be at least 3 characters long.")
        return name

from django.shortcuts import render
from .forms import MyForm

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            # 处理表单数据
            pass
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">Submit</button>
</form>

{% if form.errors %}
  <ul class="errorlist">
    {% for field_errors in form.errors.values %}
      {% for error in field_errors %}
        <li>{{ error }}</li>
      {% endfor %}
    {% endfor %}
  </ul>
{% endif %}