我如何从“第三"获取数据Django相关模型? [英] How I get data from "third" related model in django?

问题描述

大家好，

我有这个模型:

class Pais(models.Model):
    nome = models.CharField('Nome', max_length=50)


class Brinq(models.Model):
    descricao = models.CharField('Nome', max_length=50)

class Filhos(models.Model):
    nome = models.CharField('Nome', max_length=50)
    idade = models.IntegerField('Idade')
    pai = models.ForeignKey('Pais')
    brinq = models.ForeignKey('Brinq', related_name='Brinq')

此视图:

def editPai(request, idpai=None):
    if idpai:
        pai = Pais.objects.get(id=idpai)
    else:
        pai = None

    ItensInlineFormSet = inlineformset_factory(Pais, Filhos, form=FilhosForm, extra=1)
    formPais = PaisForm()
    formsetItens = ItensInlineFormSet(instance=pai)

    return render_to_response("base.html", {
        "formPais": formPais,  "formsetItens": formsetItens
    }, context_instance=RequestContext(request), )

和这样的形式:

class PaisForm(ModelForm):
    class Meta:
        model = Pais

class FilhosForm(ModelForm):
    class Meta:
        model = Filhos

好，如何从模板中的"Brinq"模型获得"descricao"值?我认为这是一个简单的问题，但是，我尝试在互联网上进行查找，查找和查找，但对此一无所获.

Ok, How can I get "descricao" value from "Brinq" model in my template? I think it's a simple question but, I tried looking, looking and looking again from internet and I don't find anything about this.

我开始觉得无法使用django来做到这一点，我想相信自己是错的，但是正如我所说，我在互联网上找不到任何有关此的东西.

I start to thing it's not possible to do it using django, I want to believe that I'm wrong, but as I said, I didn't find anything about this in internet.

我尝试:

 {%  for form in formsetItens %}
  <tr>
       <td> {{ form.nome }}</td>
       <td> {{ form.idade }}</td>
       <td> {{ form.brinq__descricao }}</td>
  </tr>
  {% endfor %}

和 {{form.brinq.descricao}} 到，什么都没有...:(

and {{ form.brinq.descricao}} to, and nothing... :(

有人可以帮助我解决这个问题吗?

Can anyone help me with this problem?

此致

推荐答案

您正在尝试遍历FormSet.正如 docs 所说，表单集使您能够迭代表单集中的表单，并像使用常规表单一样显示它们."

You are trying to iterate over a FormSet. As the docs say "The formset gives you the ability to iterate over the forms in the formset and display them as you would with a regular form".

例如，您可以执行以下操作以显示表单中包括的所有字段:

So you can for example do the following to display all the fields included in the form:

{%  for form in formsetItens %}
    {{ form.as_table }}
{% endfor %}

..或者，如果适合您的用例，则可以将每个表单包装到一个表单标签中，然后

..or if it fits your use case you could wrap each form into a form tag, and loop over the form fields:

{%  for form in formsetItens %}
    <form action="/contact/" method="post">
        {% for field in form %}
            <div class="fieldWrapper">
                {{ field.errors }}
                {{ field.label_tag }} {{ field }}
            </div>
        {% endfor %}
        <p><input type="submit" value="Send message" /></p>
   </form>
{% endfor %}

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