django-extra-views中的form_valid方法。现实形式_有效 [英] form_valid method in django-extra-views. In reality form(s)_valid

问题描述

我正在尝试使用Django Extra Views包基于模型+内联表单集+ USER模型的其他信息来创建新条目。我知道如何通过基于函数的视图来执行此操作，但是现在尝试减少代码量：

I am trying to use Django Extra Views pack to create new entry based on model + inline formset + extra information from the USER model. I know how to do it via function based views but now trying to decrease amount of the code:

我有2个模型+用户模型：

I have 2 models + user model:

Model1: # primary model 
author = models.ForeignKey("ExtraUser", )
+some fileds

Model2 # secondary model
photo = models.ForeignKey("Model1", )
+ some fields

# user model
Model ExtraUser(AbstractBaseUser)
+ some fileds

我在VIEW后面使用渲染并保存在一起：

I use following VIEW to render and save it all together:

class ItemInline(InlineFormSetFactory):
    model = Model2
    fields = ["somefiled"]


class CreateBoatView(SuccessMessageMixin, LoginRequiredMixin, CreateWithInlinesView):
    model = Model1
    inlines = [ItemInline]
    fields = ["list of the fields here"]
    template_name = 'create.html'

    def get_success_url(self):
        return reverse('app:url', args=(self.object.pk, ))

除1件事外，所有其他功能均有效：我无法指定当前用户为条目作者，即author = models.ForeignKey（ ExtraUser，）始终为NULL

It all work except 1 thing: I cant appoint current user as an entry author, that is author = models.ForeignKey("ExtraUser", ) is always NULL

在基于祖先函数的视图中，我曾经做过以下事情：

in ancestor function based view I used to do following:

if form1.is_valid():
    prim = form1.save(commit=False)
    prim.author = request.user  # that is I connect this entry to the current user.
   # + do something + save(commit=True) finally.

如何在CreateWithInlinesView中做同样的事情？

How to do same stuff in CreateWithInlinesView?

尝试了以下内容。 Doenst工作

tried following. Doenst work

    def dispatch(self, request, *args, **kwargs):
        self.user = request.user
        return CreateWithInlinesView.dispatch(self, request, *args, **kwargs)

    def form_valid(self, form): #(self, form, inlines)??
        self.object = form.save(commit=False)
        self.object.author = self.request.user
        self.object.save()
        return HttpResponseRedirect(self.get_success_url())


# super-class form_valid method (for reference)

    def forms_valid(self, form, inlines):
        """
        If the form and formsets are valid, save the associated models.
        """
        self.object = form.save()
        for formset in inlines:
            formset.save()
        return HttpResponseRedirect(self.get_success_url())

推荐答案

非常感谢作者Django Extra Views，因为它们添加了特殊的方法，而不是form_valid...。
猜测它如何调用？
forms_valid。您确实需要几秒钟来获得差异，对吧？
对我来说大约需要5个小时才能找到答案。

Well, thanks a lot to authors of the Django Extra Views , as they have added special method instead of the form_valid.... guess how it called??? forms_valid . You do need few seconds to get the difference, right?? for me it took around 5 hours to find it out.

最终：

    def forms_valid(self, form, inlines): #yes, f%%ng form(s)_valid, yeh...
        """
        If the form and formsets are valid, save the associated models.
        """
        self.object = form.save(commit=False)
        self.object.author = self.request.user
        form.save(commit=True)
        for formset in inlines:
            formset.save()
        return HttpResponseRedirect(self.get_success_url())

这篇关于django-extra-views中的form_valid方法。现实形式_有效的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！