return render(request, "stark/change_list_views.html",{"add_url":self.get_add_url(),"show_add_btn":self.get_show_add_btn()})

 # =================url相关，reverse反向解析=============
    def get_change_url(self,nid):
        name = "stark:%s_%s_change"%(self.model_class._meta.app_label,self.model_class._meta.model_name)
        edit_url = reverse(name,args=(nid,))  #反向解析只要找到他的name属性，就会找到他对应的路径
        return edit_url

    def get_add_url(self):
        name = "stark:%s_%s_add" % (self.model_class._meta.app_label, self.model_class._meta.model_name)
        edit_url = reverse(name)
        return edit_url

    def get_delete_url(self, nid):
        name = "stark:%s_%s_delete" % (self.model_class._meta.app_label, self.model_class._meta.model_name)
        edit_url = reverse(name,args=(nid,))
        return edit_url

    def get_list_url(self):
        name = "stark:%s_%s_changelist" % (self.model_class._meta.app_label, self.model_class._meta.model_name)
        edit_url = reverse(name)
        return edit_url

  model_form_class=None
    def get_model_form_class(self):
        if self.model_form_class:   #如果自己定制了就用自己的，在这就什么也不返回了，如果没有自己定义就返回默认的这个Form
            return self.model_form_class
        # 方式一定义ModelForm
        # class TestModelForm(ModelForm):
        #     class Meta:
        #         model = self.model_class
        #         fields = "__all__"
        # return TestModelForm
        # 方式二定义
        Meta = type("Meta", (object,), {"model": self.model_class, "fields": "__all__"})
        TestModelForm = type("TestModelForm", (ModelForm,), {"Meta": Meta})
        return TestModelForm

    def add_views(self,request,*args,**kwargs):
        model_form_class = self.get_model_form_class()
        if request.method=="GET":
            form = model_form_class()
            return render(request,"stark/add_view.html",{"form":form})
        else:
            form = model_form_class(request.POST)
            if form.is_valid():
                form.save()
                return redirect(self.get_list_url())
            else:
                return render(request, "stark/add_view.html", {"form": form})

    def delete_view(self, request,nid, *args, **kwargs):
        self.model_class.objects.filter(pk=nid).delete()
        return redirect(self.get_list_url())

    def change_views(self, request,nid, *args, **kwargs):
        model_form_class = self.get_model_form_class()
        obj = self.model_class.objects.filter(pk=nid).first()
        if not obj:
            return redirect(self.get_list_url())
        if request.method == "GET":
            form = model_form_class(instance=obj)
            return render(request, "stark/edit_view.html", {"form": form})
        else:
            form = model_form_class(data=request.POST,instance=obj)
            if form.is_valid():
                form.save()
                return redirect(self.get_list_url())
            else:
                return render(request, "stark/edit_view.html", {"form": form})