django—将参数从模板传递到模型。py的函数

I' ve a model called mymodel, which has a property getp, but this requires a parameter (request):

我有一个名为mymodel的模型，它有一个属性getp，但这需要一个参数(请求):

class Mymodel(models.Model):
    ...
    def getp(self, request):
        return "STH"

. From the views i pass the request and one model to the template:

。从视图中，我将请求和一个模型传递给模板:

return render_to_response('x.html', {
                                       'mymodel': Mymodel.objects.get(id=17),
                                       'request': request
                                   }, context_instance = RequestContext(request))

, and from the template file is there any way to call the getp function with the request parameter? I know this shouldn' t be used like this, but my question is rather theoretical than practical.

，从模板文件中是否有方法使用请求参数调用getp函数?我知道这不应该这样使用，但我的问题是理论性的，而不是实践性的。

Any workaround for this problem?

有办法解决这个问题吗?

Thanks.

谢谢。

1 个解决方案

#1

seems a duplicate of How to use method parameters in a Django template?

如何在Django模板中使用方法参数?

one solution would be to pass result of your method to template. something like:

一种解决方案是将方法的结果传递给模板。喜欢的东西:

object = Mymodel.objects.get(id=17)
return render_to_response('x.html', {
    'mymodel': object,
    'mymodel_getp': object.getp(request),
    'request': request
    }, context_instance = RequestContext(request))

other solution would be to write a custom template tag:

其他解决方案是编写自定义模板标记:

@register.simple_tag(name="model_getp", takes_context=True)
def model_getp(context, object=None):
    return object.getp(context)

and then in template:

然后在模板:

{% model_getp mymodel %}

#1