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[英]How can I add an auto increment field in a model based on total count of objects with same field value?
[英]I can't add a value to this user model field
我正在嘗試做一個系統,如果他問一個問題,用戶可以獲得積分,但是當用戶這樣做時,積分字段不會增加。
我的模型:
class Post(models.Model):
author = models.ForeignKey(User, on_delete=models.PROTECT, related_name='post')
category = models.ForeignKey(Category, on_delete=models.PROTECT)
type = models.CharField(max_length=30, choices=TYPE, default='Question')
title = models.CharField(max_length=100, unique=True)
content = models.TextField()
views = models.IntegerField(default=0)
votes = models.ManyToManyField(User, blank=True, related_name='vote')
featured = models.BooleanField(default=False)
date_posted = models.DateTimeField(default=timezone.now)
我的看法:
class PostCreateView(LoginRequiredMixin, CreateView):
model = Post
success_url = '/'
fields = ['title', 'content', 'category']
def form_valid(self, form):
form.instance.author = self.request.user
form.instance.author.points + 15
return super().form_valid(form)
當我轉到管理頁面中的當前用戶時,該值不會改變。
您應該使您的代碼更加清晰,但正如我所假設的那樣,正如 Thierno 所說,您沒有訪問該對象並且之后沒有保存它。
您需要做的是,一旦您發出post
請求,——並且因為您需要訪問用戶——,保存您的發帖,然后執行類似以下操作:
post_user = self.request.user
post_user.points +=15
post_user.save()
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