CreateView中的多个窗体和窗体 [英] Multiple Forms and Formsets in CreateView

问题描述

我有2个模型，父亲和儿子。

我有一个页面可以注册父亲。在同一页上，我有一个表单来注册 Son 。

I have a page to register Father. On the same page I have a formset to register Son.

页面上有一个按钮more添加另一个父亲及其各自的儿子在同一页。

On page has a button "more" to add another Father and their respective Son on the same page.

有没有人使用 CreateView 的任何示例？

Does anyone have any examples using CreateView?

推荐答案

意见仍然是新的，所以我会写出来。过程很简单：

Class based views are still new, so I'll write this out. The process is simple:

首先，为您的对象创建表单。其中一种形式将重复。这里没有什么特别之处。

First, create the forms for your objects. One of the forms will be repeated. Nothing special to be done here.

class SonInline(ModelForm):
    model = Son

class FatherForm(ModelForm):
    model = Father

然后，创建你的 formset ：

Then, create your formset:

FatherInlineFormSet = inlineformset_factory(Father,
    Son,
    form=SonInline,
    extra=1,
    can_delete=False,
    can_order=False
)

现在，将它与您的 CreateView ：

class CreateFatherView(CreateView):
    template_name = 'father_create.html'
    model = Father
    form_class = FatherForm # the parent object's form

    # On successful form submission
    def get_success_url(self):
        return reverse('father-created')

    # Validate forms
    def form_valid(self, form):
        ctx = self.get_context_data()
        inlines = ctx['inlines']
        if inlines.is_valid() and form.is_valid():
            self.object = form.save() # saves Father and Children
            return redirect(self.get_success_url())
        else:
            return self.render_to_response(self.get_context_data(form=form))

    def form_invalid(self, form):
        return self.render_to_response(self.get_context_data(form=form))

    # We populate the context with the forms. Here I'm sending
    # the inline forms in `inlines`
    def get_context_data(self, **kwargs):
        ctx = super(CreateFatherView, self).get_context_data(**kwargs)
        if self.request.POST:
            ctx['form'] = FatherForm(self.request.POST)
            ctx['inlines'] = FatherInlineFormSet(self.request.POST)
        else:
            ctx['form'] = Father()
            ctx['inlines'] = FatherInlineFormSet()
        return ctx

最后，这里是模板：

关键部分是jquery django-dynamic-formset 插件保持添加新的内联表单：

The key part is the jquery django-dynamic-formset plugin that keeps adding new inline forms:

<form id="father-form" method="POST" enctype="multipart/form-data" action=".">
{% csrf_token %}
<div class="row">
  {% for f in form %}
    <div class="span3">{{ f.label }}<br />{{ f }}
      {% if f.errors %}
          {% for v in f.errors %}
            <br /><span style="color:red;">{{ v }}</span>
          {% endfor %}
      {% endif %}
    </div>
 {% endfor %}
</div>
<hr />
<h2>Sons:</h2>
<table class="table-striped">
 <table>
 {%  for f2 in inlines %}
   <tr id="{{ f2.prefix }}-row">
      {% for i in f2 %}
        <td>
           {{ i }}{% if i.errors %}<span style="color:red;">{{ i.errors }}</span>{% endif %}
        </td>
      {% endfor %}
   </tr>
 {% endfor %}
</table>
{{ inlines.management_form }}
<input type="submit" class="btn btn-primary" value="Go Go Gadget &rarr;">
</form>
<script type="text/javascript">
    $(function() {
        $('#father-form tr').formset({
            prefix: '{{ inlines.prefix }}'
        });
    })
</script>

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