Django使用通用视图保存多个到多个条目 [英] Django saving many to many entries using generic views

问题描述

我有一个django模型，有很多到多个字段，如下所示：

I have a django model with many to many fields as follows:

class Sponsor(CommonInfo, Person):
    signature_code = models.CharField(max_length=20, blank=True)
    account = models.ForeignKey(Account)
    department = models.ForeignKey(Department)
    product = models.ManyToManyField(Product, null=True, blank=True, through = 'ProductSponsor')
    accounts = models.ManyToManyField(Account, null=True, blank=True, through = 'AccountSponsor', related_name='sponsoraccounts')

，我的观点有：

class SponsorEdit(UpdateView):
    model = Sponsor
    template_name = 'sponsoredit.html'
    fields = ('account', 'department', 'exp_date', 'last_name', 'first_name', 'signature_code', 'comments', 'product', 'accounts')

当我通过在许多中添加一些字段来编辑条目到MAny r elationship，我得到以下错误：

When i am editing an entry by adding some fields in the Many to MAny relationship, i get the following error:

AttributeError at /irms/sponsoredit/2
Cannot set values on a ManyToManyField which specifies an intermediary model.  Use irms.ProductSponsor's Manager instead.

问题在哪里？

推荐答案

在您的模型中，您正在使用 AccountSponsor 和 ProductSponsor 。它们是关系的自定义中间表，当您保存赞助者对象时，需要设置中间和' AccountSponsor '对象。如下所示：

In your model you are using AccountSponsor and ProductSponsor. They are custom intermediate tables for the relationship, when you save a Sponsor object you need to set the intermediate 'ProductSponsor' and 'AccountSponsor' objects manually. Something like:

ProductSponsor.objects.create(sponsor=SponsorObject, product=ProductObject)
AccountSponsor.objects.create(sponsor=SponsorObject, account=AccountObject)

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