如何从模板访问表单使用的模型实例？ [英] How can i access the model instance used by a form from a template?

问题描述

我正在遍历模板中由模型表单构成的表单集。我想提供有关该模型的附加信息。如果对此如何在Django中从表单模板访问模型的答案问题将起作用，我可以这样做：

  {％for formset.forms％} 
状态：{{form._meta.model.status}} 
 {{form}} 
 {％endfor％} 
  

但这只会引发TemplateSyntaxError：变量和属性可能不能以下划线开头。

解决方案

<我认为那不是你想做的。模型是 class ：它不会具有 status 状态，因为那是一个仅为特定实例获取值的字段。

我怀疑您的意思是访问与表单关联的模型 instance ，该模型只是 form.instance 。

I am iterating over a formset made of modelforms in my template. I want to provide aditional information on that model. If the answer to this How to Access model from Form template in Django question would work, i could do this:

{% for form in formset.forms %}
Status:{{ form._meta.model.status }}
    {{form}}
{% endfor %}  

But that just throws the TemplateSyntaxError: Variables and attributes may not begin with underscores.

解决方案

I don't think that's what you want to do. A model is a class: it won't have a status, as that's a field which only gets a value for a particular instance.

I suspect what you mean to do is access the model instance associated with the form, which is just form.instance.

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