从自定义视图引发django管理员验证错误 [英] Raise django admin validation error from a custom view

问题描述

我在django-admin中有一些自定义视图链接到我的change_form。
一切正常，但是现在我想从我的自定义视图中引发一个ValidationError，并因此在django-admin中获得闪存，其中打印了ValidationError的消息，这与在模型中引发它时的情况相同.clean（）。

I've some custom views in django-admin linked to my change_form. All works well, but now I'd want to raise a ValidationError from my custom views and consequently get the flash in django-admin that prints the msg of ValidationError, that is the same that occurs if I raise it in model.clean().

我使用的自定义视图示例：

an example of custom view that I use:

@site.admin_view
def send_transaction_mail(request, obj_id, typ):
    order = Order.objects.get(id=obj_id)
    if typ == 'SHIPMENT':
        send_order_confirm(order)
    else:
        raise Exception("Something goes wrong sending transaction mail")
    return HttpResponseRedirect(request.META['HTTP_REFERER'])

有办法吗？谢谢

推荐答案

不确定我是否很好理解你的要求：

Not sure I understood what you want well:

您有一个视图，根据定义，该视图是公共页面。您希望它在管理页面（按定义为privates页面）中显示错误消息吗？这很奇怪。但是，如果您愿意的话。

You have a view, by definition a public page. You want it to display an error message in the admin pages (by definition privates page) ? It's odd. But if you want so.

要在管理页面中显示错误，请使用 Django消息框架。这就是在页面顶部显示带有错误/通知的黄色行的方法。

To display an error in the admin pages, use the Django Message Framework. It's what is in use to display the yellow rows with errors/notifications on the top of the pages.

from django.contrib import messages
messages.error(request, "Something goes wrong sending transaction mail");

确实，验证错误仅与表单一起显示。因此，只能在表单，表单集或字段的clean（）方法中引发它们。

Indeed, validation errors an only displayed with forms. And thus, they are to be raised only in the clean() method of a form, a formset, or a field.

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