Question

我有这样的徽章规则;

grant_on 'comments#create', badge: 'frequent-commenter', to: :user, temporary: true do |comment|
  comment.user.comments.where(:created_at.gte => (Date.today - 30)).count >= 20
end

发送评论后，用户将丢失徽章。但如果他/她没有发表评论，他/她将永远拥有徽章。

是否可以检查临时徽章并删除那些无效徽章？

Answer 1

无法从优点规则运行，因为comment局部变量不会在那里从一个cron工作。我要做的是将逻辑移动到用户模型，然后从规则和cron工作中调用它：

grant_on 'comments#create', badge: 'frequent-commenter', to: :user,
  temporary: true do |comment|

  comment.user.is_frequent_commenter?
end

class User
  def is_frequent_commenter?
    comments.where(:created_at.gte => (Date.today - 30)).count >= 20
  end
end

class RemoveInvalidBadgesJob
  def perform
    # Better done by direct database query?
    User.all.reject(&:is_frequent_commenter?).map do |user|
      user.rm_badge(1)
    end
  end
end

Merit gem cron job检查并删除临时徽章

1 个答案: