在我的应用程序中,我有一个看起来像这样的模型:
class Talk(models.Model):
title = models.CharField(max_length=200, primary_key=True)
speaker = models.CharField(max_length=200)
date_of_talk = models.DateField('date_of_talk')
def __unicode__(self):
return self.title
class Member(models.Model):
name = models.CharField(max_length=200)
telephone_number = models.CharField(max_length=200)
email_address = models.CharField(max_length=200)
membership_type = models.CharField(max_length=1, choices=MEMBERSHIP_TYPES)
membership_number = models.CharField(max_length=200, primary_key=True)
def __unicode__(self):
return self.name
class Event_Attendance(models.Model):
talk = models.ForeignKey('Talk')
membersAttended = models.ForeignKey('Member')
def __unicode__(self):
return '%s attended %s' %(unicode(self.membersAttended), unicode(self.talk))
当我输入谈话时,我希望能够从Event_Attendance
模型中提取所有结果。这样我就可以得到参加它的人的名字。我尝试过的每件事都失败了,例如:
a = Event_Attendance(talk="Meteors")
有没有人有任何想法?
在此先感谢,
迪恩
答案 0 :(得分:1)
我认为您的EventAttendance模型中的members_attended字段会更好,因为ManyToManyField
class EventAttendance(models.Model):
talk = models.ForeignKey(Talk)
members_attended = models.ManyToManyField(Member)
这样可以轻松获取所需信息。