如何在发生这种情况的字段附近的模板中打印 ValidationError？

Question

我正在重写方法 clean_：

def clean_password(self):
    value_password = self.cleaned_data.get('password')
    if len(str(self.cleaned_data['password'])) < 6:
        raise forms.ValidationError("Password must been more then 6 symbols")
    elif len(str(self.cleaned_data['password'])) > 45:
        raise forms.ValidationError("Password must been less 45 symbols")
    elif value_password is None:
        raise forms.ValidationError("Field of password can't are blank")
    return value_password

def clean_password2(self):
    value_password2 = self.cleaned_data.get('password2')
    if len(str(self.cleaned_data['password2'])) < 6:
        raise forms.ValidationError(self.error_messages['password_mismatch'],
                                    code='password_mismathc')
    elif len(str(self.cleaned_data['password2'])) > 45:
        raise forms.ValidationError("Password must been less 45 symbols")
    return value_password2

def clean(self):
    super(Form_registration, self).clean()
    data = self.cleaned_data
    if data["password"] != data["password2"]:
        raise forms.ValidationError("Password must been are equal")
    return data

如果我写这个 {{ form.errors }} 然后在首页打印错误，但我希望在表单密码附近打印错误。

我必须做什么？

Answer 1

更改您的 clean 方法以通过将字段名称传递给它来引发验证错误。

def clean(self):
    super(Form_registration, self).clean()
    data = self.cleaned_data
    if data["password"] != data["password2"]:
        raise forms.ValidationError({'password': ["Passwords must be the same."]})
    return data

编辑：

您的模板应如下所示：

<form action="" method="post">
    {% csrf_token %}
    {{ form.non_field_errors }}
    <div class="fieldWrapper">
        {{ form.password.errors }}
        <label for="{{ form.password.id_for_label }}">Password:</label>
        {{ form.password }}
    </div>
    <div class="fieldWrapper">
        {{ form.password2.errors }}
        <label for="{{ form.password2.id_for_label }}">Confirm Password:</label>
        {{ form.password2 }}
    </div>
</form>

Answer 2

{{form.password1.errors}}

只需在 form.field_id.errors 中添加您的字段 id 并将其放在所有表单元素旁边。