Rails Concerns，Scopes，Devise，User.current和current_user [英] Rails Concerns, Scopes, Devise, User.current and current_user

问题描述

我正在使用基于状态显示记录的问题。如果您登录，您可以看到未经批准的记录，公众只能查看已批准的记录。

I'm using a concern for showing records based on status. If you are logged in you can see unapproved records and the public can only view approved records.

module Approved
 extend ActiveSupport::Concern

  included do
   if User.current && !User.current.nil?
    scope :approved, -> { where("#{self.table_name}.status_id IN (1,2,3)") }
   else
    scope :approved, -> { where("#{self.table_name}.status_id IN (1)") }
  end
end
end

我正在使用线程来设置当前用户。

I'm using Thread to set current user.

def self.current=(user)
  Thread.current[:current_user] = user
end

def self.current
  Thread.current[:current_user]
end 

在application_controller中我有一个before_action调用set_current_user。

And in the application_controller i have a before_action calling set_current_user.

def set_current_user
  User.current = current_user
end

当我注销未批准的记录仍然从查询中拉出。似乎忽略了这个问题。

When I log out the unapproved records still pull from the query. It seems to skip over the concern.

推荐答案

包含

lambdas，但是每次都要点火。

lambdas, however, fire each time.

尝试这个：

included do
  scope :approved, -> {
    ids = User.current.present? ? "(1,2,3)" : "(1)"
    where("#{self.table_name}.status_id IN #{ids}")
  }
end

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