Django:基于类的视图不能呈现松脆的形式

Question

嗨Stackoverflow人,

我很难用基于类的视图渲染一个清脆的表单.当我使用基于函数的视图时,一切正常.

像往常一样,我生成forms.py如下:

from django import forms    
from crispy_forms.helper import FormHelper
from crispy_forms.layout import Layout, Div, Submit, HTML, Button, Row, Field
from item.models import Item

class CreateItemForm(forms.ModelForm):
    class Meta:
        model = Item
        exclude = ('user',)

        def __init__(self, *args, **kwargs):
            self.helper = FormHelper()
            self.helper.form_tag = False
            self.helper.form_class = 'form-horizontal'
            self.helper.layout = Layout(
                Fieldset(
                    'Create your item here',
                    'name', 'description', 
                    'save',
                ),
            )
            self.request = kwargs.pop('request', None)
            return super(CreateItemForm, self).__init__(*args, **kwargs)

视图功能非常简单和标准:

from django.views.generic.edit import CreateView,
from item.models import Item
from item.forms import CreateItemForm

class ItemCreate(CreateView):
    form_class = CreateItemForm
    model = Item
    template_name = 'item/item_create_form.html' 

并且模板也遵循最小指令:

{% extends "base.html" %}
{% load crispy_forms_tags %}
{% block content %}
<h2>Create new Item</h2>
            <form action="." class="crispy form-horizontal" method="post">
                {% crispy form form.helper %}
            </form>
{% endblock %}

我的问题是Django会在/ item/add /中抱怨"VariableDoesNotExist,在...中找不到关键[helper]的失败".

脆弱的表单是否与基于类的视图兼容？我怎样才能交出帮助信息来正确创建表单？

感谢您的帮助和建议.

Answer 1

您的表单中的构造函数太缩进,这种方式它属于表单的Meta类,但它应该直接在CreateItemForm