使用Rails的Cancan身份验证

Question

我有一个复杂的身份验证方案，我想出了这个模型结构。

see model structure

任何一个可以指导如何使用康康舞与这种结构中嵌入认证。

Answer 1

def initialize (user) 
    user ||= User.new # Guest user 
     user.roles.each do |role| 
     role.permissions.each do |p| 
     can :read, p.resource.class_name.to_s.classify.constantize do |subject| 
      p.resource.class_name == subject.id and p.can_read 
     end 
     can :create, p.resource.class_name.to_s.classify.constantize do |subject| 
      p.resource.class_name == subject.id and p.can_create 
     end 
     can :update, p.resource.class_name.to_s.classify.constantize do |subject| 
      p.resource.class_name == subject.id and p.can_update 
     end 
     can :destroy, p.resource.class_name.to_s.classify.constantize do |subject| 
      p.resource.class_name == subject.id and p.can_delete 
     end 
     end 
    end 
end 

Answer 2

p.resource.class_name == subject.id and p.can_read 
    end 
    can :create, p.resource.class_name.to_s.classify.constantize do |subject| 
     p.resource.class_name == subject.id and p.can_create 
    end 
    can :update, p.resource.class_name.to_s.classify.constantize do |subject| 
     p.resource.class_name == subject.id and p.can_update