[英]Dynamically add ManyToMany relationship to Django objects
我的公司类与自身具有多个M2M关系
公司类别(models.Model):
divisions = models.ManyToManyField('self', symmetrical=False, related_name="parent_companies")
parents = models.ManyToManyField('self', symmetrical=False, related_name="divisions_companies")
comp = models.ManyToManyField('self', symmetrical=False, related_name="comp")
friends = models.ManyToManyField('self', symmetrical=False, related_name="friends")
我希望能够像这样动态添加M2M关系,但是显然不起作用。 有没有办法动态地做到这一点?
company, was_created = Company.objects.get_or_create(name=info)
setattr(self,key, company)
得到它了。 只需传递列表即可。
company, was_created = Company.objects.get_or_create(name=info)
setattr(self,key, [company,])
用于添加M2M的语法是field.add(obj_pk or obj)
company, was_created = Company.objects.get_or_create(name=info)
self.comp.add(company)
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