Question

如果我尝试在django表单中添加一个新对象，我如何将初始值传递给这个新表单？我知道如何在表单init上设置初始值，但我不知道如何在新表单中进行表单任何帮助？enter code here

Model A
X = CharField()
Y = ForeignKey(ModelB)


Model B
Z = CharField()

设置X后保存模型的值。我能够在ModelA表单中添加新对象Y，这将打开一种新形式的ModelB。如何将X的值传递给刚刚打开的新表单？我需要X来对Z进行查询，我无法找到解决方案

编辑：

class PrecoPorEpocaForm(forms.ModelForm):
        class Meta:
            model = Preco_por_epoca
            fields = ('epoca',)

        def __init__(self, *args, **kwargs):
            super(PrecoPorEpocaForm, self).__init__(*args, **kwargs)

           #if kwargs['initial']['epoca_hotel']:
             #   print kwargs['initial']['epoca_hotel']
            #    self.fields['epoca'].queryset = Epoca.objects.filter(hotel=s)
            #print "TTTTTTTTTTTTTTT"




class TabelaPrecoForm(forms.ModelForm):

    class Meta:
        model = TabelaPrecos
        fields = ('client', 'year','hotel', 'seasonprice', 'teste')

    def __init__(self, *args, **kwargs):

        super(TabelaPrecoForm, self).__init__(*args, **kwargs)

        if self.instance.hotel != None:
             self.fields['seasonprice'].queryset = Preco_por_epoca.objects.filter(epoca__hotel = self.instance.hotel)

Answer 1

如果我正确地想要做什么，你需要扭转关系：

class ModelA(models.Model):
    X = CharField()

class Model B(models.Model):
    Z = CharField()
    model_A_ref = ForeignKey(ModelA)

然后在你的admin.py

中做

class ModelBAdmin(admin.ModelAdmin):
   list_filter=('model_A_ref',)

admin.site.register(ModelB, ModelBAdmin)

如何将表单中的初始值传递给新表单？

1 个答案: