This post originated from an RSS feed registered with Ruby Buzz by Jan Lelis. Original Post: Troubleshooting a aegis-permission problem Feed Title: rbJ*_*L.net Feed URL: http://feeds.feedburner.com/rbJL Feed Description: Hi, I am a fan of Ruby and like to explore it and the world around ;). So I started this blog, where I am publishing code snippets, tutorials for beginners as well as general thoughts about Ruby, the web or programming in general. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Jan Lelis Latest Posts From rbJ*_*L.net

In my current Rails project, I use the aegis gem for rights management. And I almost got mad, wondering, why it wouldn’t work..\nHere is the code I had the problem with:

/7/permissions_example.rb

# in models/permission.rb
permission :access_photo do |user_or_group,photo|
    allow :user do
      user_or_group.allowed_photos.first == photo
    end
  end

which was called like this (I know, it’s a little bit unDRY):

user.may_access_photo?(user,photo)

After some nerve-wracking debugging, I realized, that the first block parameter of the permission block is reserved for the “self”-user, the one on which you ask… Then, the second parameter is the first you want. I changed it to:

:access_photo do |cur_user,user_or_group,photo|