Django在带有父对象的创建视图中创建多个子对象

我有两个模型是由一个外键关联的。我试图在创建视图的表单字段中添加逻辑,在该视图中,用户填写一个数字n,它在数据库中生成n个项。

型号.py

class Environment(models.Model):
    name = models.CharField(max_length=50)

class Item(models.Model):
    environment = models.ForeignKey(Environment, on_delete=models.CASCADE)
    uid = models.CharField(max_length=50, unique=True, null=True, blank=True)
    def __init__(self):
        super(Item, self).__init__()
        self.uid = str(uuid.uuid4())

视图.py

class EnvironmentCreateView(CreateView):
    '''View for creating Environments'''
    model = Environment
    form_class = EnvironmentCreateForm
    template_name = 'Environment_create.html'
    success_url = reverse_lazy('main:Environment list')

表格.py

如果 items 字段由用户填充,它应该在数据库中生成n个项。我采用的当前方法存在覆盖save函数的问题。不确定是否需要使用inline表单集

 class EnvironmentCreateForm(forms.ModelForm):
        name =forms.CharField(max_length=50, required=True, label='Product Name')
        items =forms.IntegerField(min_value =0, max_value = 100,required=False, label='Number of Items')
        class Meta:
            model = Environment
            fields = ['name',]

        def save(self):
            if Environment.is_valid(): 
                Environment.save() 
            if self.items >= 0:
                for i in range(self.items):
                   Item.objects.create(Environment, uid =str(uuid.uuid4()) )