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davydovanton/kan_example.rb

Created April 19, 2018 13:59
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  1. davydovanton created this gist Apr 19, 2018.
    40 changes: 40 additions & 0 deletions kan_example.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,40 @@
    module Post
    class AnonymousAbilities
    include Kan::Abilities

    role(:anonymous) do |user, _|
    user.id.nil?
    end

    register(:read) { [] }
    end

    class BaseAbilities
    include Kan::Abilities

    role(:all) do |_, _|
    !!user.id
    end

    register(:read) { |user, repo| repo.all_with_limit(user) }
    end


    class PayedUserAbilities
    include Kan::Abilities

    role(:author) do |user, post|
    !!user.id and user.payed
    end

    register(:read) { |user, repo| repo.all(user) }
    end
    end

    abilities = Kan::Application.new(
    post: [Post::AnonymousAbilities.new, Post::BaseAbilities.new, Post::PayedUserAbilities.new]
    )

    abilities['post.read'].call(anonymous, post) # => []
    abilities['post.read'].call(regular, post) # => [5 items]
    abilities['post.read'].call(payed, post) # => [all items]