Question

我有这个模特

class Base(models.Model):
    city = models.CharField(max_length=100) 
    district = models.CharField(max_length=100)
    Owner = models.ForeignKey(User, related_name='%(class)s__Game_Owner')
    attending = models.ManyToManyField(User)
    requested = models.ManyToManyField(User, related_name="%(class)s__requested")
    invited = models.ManyToManyField(User, related_name="%(class)s__invited")
    teams = models.ManyToManyField(Team)
    field = models.CharField(max_length=100)
    Hash = models.CharField(max_length=32, blank=True)

我还有其他两个课程从这个基础开始。班级名称是保留和招募我在视图中创建了这个函数

def test_join_event(event_id, event_type, user_id):
    event = None
    if event_type =='enlisting':
        event = enlistings.objects.get(id=event_id)           
    elif event_type =='reservation':
        event = reservations.objects.get(id=event_id)

    requested_user = User.objects.get(id=user_id)
    if requested_user == event.Owner:
        return "Error: you are already part of the event"
    if requested_user in event.players.all():
        return "Error 2!"
    if requested_user in event.invited.all():
        return "You are already invited to the event!"
    if requested_user in event.requested.all():
        return "You can't send your request again!"

    event.requested.add(requested_user)
    event.save()
    return "Saved!!"

当我从翻译中调用该函数时，它一直在给我＆＃34; Saved＆＃34;但是它应该将用户添加到请求的列表中，并且下次我调用该函数时它将返回＆＃34;您不能再次发送请求＆＃34; ！我从它返回的浏览器中尝试了该函数，但是当我查看解释器中的对象时，我看到请求列表为空（没有我刚刚添加的播放器）

当我从翻译中解脱时，我遇到了同样的问题！我只注意到我只能添加拥有该事件的用户。例如像这段代码

event.requested.add(event.owner)
event.requested.all() # The user is added successfully !!

我无法理解为什么会这样。有任何想法吗？？

django不会保存许多物体

0 个答案: