ruby-on-rails – Rails CanCan宝石重构能力类

简单的escateario：如果您可以将权限拆分为多个互斥的集合,那么您应该从@ryanb,CanCan创建者检查此提案,将其中的能力分解为几个不同的类,然后覆盖ApplicationController中的current_ability方法

How you can break up large Ability class in CanCan – Gists

更复杂的场景：如果您有几个不同的重叠权限集,您可以尝试这种方法：

# app/models/ability.rb

class Ability
  include CanCan::Ability

  def initialize(user)
    self.merge Abilities::Everyone.new(user)

    if user
      self.merge Abilities::Admin.new(user) if user.admin?
      self.merge Abilities::Authenticated.new(user)
    else
      self.merge Abilities::Guest.new(user)
    end
  end
end

# app/models/abilities/admin.rb
module Abilities
  class Admin
    include CanCan::Ability

    def initialize(user)
      # define abilities here ...
    end
  end
end

# app/models/abilities/everyone.rb
...

对于其余的文件,依此类推.

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