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• 和_belongs_to_many_relationship but only for non-adminuser
原标题:has_and_belongs_to_many_relationship but only for non-admin users

我有用户模式和公司模式。 许多公司的许多用户。 这对普通用户来说是巨大的。 这对拥有行政能力的用户来说并不大。 污染物需要看到所有公司。 因此,我不必把所有公司分配到行政部门。

目前,在我这样的模式中采用的方法是:

class Company
  def self.for_user
    if User.current.is_admin?
       Company.all
    else
       User.companies
    end
  end
end

是否有办法使“谁——谁——谁——以某种条件作为关系?

最佳回答

由于这个问题/回答,我发现这个问题很突出。

Modification of has_many or use scope?

因此,我协会成为协会。

class User
  has_and_belongs_to_many :companies do
    def visible
      if proxy_owner.can? "company:view_all"
        Company.scoped
      else
        self
      end
    end
  end
end

然后,你可以打电话给他。

User.find(x).companies.visible
问题回答

我不认为你可以有条件地界定一种关系,通过任何一种选择,来界定“谁”和“谁”——谁。

I am a big fat fan of STI so I d probably do something like this:

class User < ActiveRecord::Base
  has_and_belongs_to_many :companies
end

class Admin < User
  def companies
    Companies.all
  end
end




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