Django - Formset和内联Formset的用法？

Question

对于使用哪一个(Formset还是内联Formset)，我真的很怀疑。

我有一份网上送货申请表，要预订自行车.自行车不止一种，因此我有两种型号"DeliveryRequests“和"DeliveryRequestBikes”。

class DeliveryRequests(models.Model):
    pickup_date = models.DateField()
    return_date = models.DateField()
    pickup_hour = models.TimeField()
    return_hour = models.TimeField()
    name = models.CharField(max_length=100, null=False, blank=False)
    email = models.EmailField(null=False, blank=False)
    phone = models.CharField(max_length=25, null=False, blank=False)
    location_name = models.CharField(max_length=100, null=False, blank=False)
    address_to_delivery = models.CharField(max_length=200, null=False, blank=False)
    message = models.TextField(null=True, blank=True)
    deliveryrequeststatus = models.ForeignKey(DeliveryRequestStatus, null=False, blank=False)
    comment = models.TextField(null=True, blank=True)
    date_insert = models.DateTimeField(auto_now_add=True)
    date_last_modification = models.DateTimeField(auto_now=True)  

    def __unicode__(self):
        return self.name

    class Meta: # To order in the admin by name of the section
        ordering = ['-id']   


class DeliveryRequestBikes(models.Model):
    deliveryrequest = models.ForeignKey(DeliveryRequests, null=False, blank=False)
    biketype = models.ForeignKey(BikeTypes, null=False, blank=False)
    units = models.IntegerField(null=False, blank=False)
    date_insert = models.DateTimeField(auto_now_add=True)
    date_last_modification = models.DateTimeField(auto_now=True) 

    def __unicode__(self):
        return self.deliveryrequest

    class Meta: # To order in the admin by name of the section
        ordering = ['biketype']  

我忘了明确地说这是一个前端表单。我需要能够插入一个 "DeliveryRequests“注册一个或多个 "DeliveryRequestBikes”

我应该使用哪一个，Formset还是内联Formset？

请给我一些建议。

诚挚的问候,

Answer 1

内联格式集是模型模板集之上的一个小抽象层。这些简化了通过外键处理相关对象的情况。

似乎内联表单正是您想要的。还可以指定要为一个DeliveryRequestBikes允许多少个DeliveryRequests。

试一试：

from django.forms.models import inlineformset_factory
DeliveryRequestBikesFormSet = inlineformset_factory(DeliveryRequests, DeliveryRequestBikes, fk_name="deliveryrequest")