Django查詢加入？

Question

我有兩個型號：

class Contact(models.Model): 
    name = models.CharField(max_length=255) 

class Campaign(models.Model): 
    contact = models.ForeignKey(Contact, related_name="campaigns") 
    name = models.CharField(max_length=255) 

如何選擇，在活動表競選有名字=「CAMPAIGNNAME」的所有聯繫人？

Answer 1

Contact.objects.filter(campaign__name='CampaignName')