Get current_user id in model

Question

How to get the current user id in model like post.

    def read?
    if self.users.ids.include? @current_user
      'read'
    else
      'unread'
    end
  end

If i am trying to use as @current user it not takes. Even passing through controller?

Answer 1

将用户传递到可以获取价值的任何地方

def read?(user)
    if self.users.ids.include? user.id
      'read'
    else
      'unread'
    end
 end

Answer 2

Helpers方法不能在模型内部直接访问，要访问它，您需要像这样显式调用它-

current_user = ApplicationController.helpers.current_user

但是我建议您在这种方法中将current_user作为参数传递-

class MyModel < ApplicationRecord
  #current_user = ApplicationController.helpers.current_user

 def read?(user)
    return self.users.ids.include?(user) ? true : false
  end
end

这样将是使用此方法的便捷方法

obj = MyModel.first
obj.read?(current_user)

Answer 3

除非您从控制器传递current_user，否则无法在模型中获得它。