Multiple Abilities?

[elsom25]

It would be awesome to have multiple ability definitions for applications that have multiple "apps" with different permissions (primary example being an admin app vs the standard app).

I know this is a relatively common use-case in plain old CanCan(Can), but was wondering how you'd suggest doing so with Canard?

I have a rudimentary solution working, but it requires me to create a custom Ability class from yours (partly due to the methods being private over protected, partly to provide a hook)

class CustomAbility < Ability
  def initialize(object=nil)
    @user = object.respond_to?(:user) ? object.user : object
    setup_abilities
  end

protected

  def setup_abilities
  end

  def add_role_abilities(roles)
    roles = [roles] unless roles.is_a? Array
    roles.each{ |role| self.send(:append_abilities, role) }
  end

  def get_ability_key(class_name)
    self.send(:ability_key, class_name)
  end
end

and then for my "custom" ablities, inheriting from the new class, and adjusting as necessary (currently by just simply appending admin_ to the front, just to see if it'd work)

class AdminAbility < CustomAbility
protected
  def setup_abilities
    return unless @user

    user_class_name = String(@user.class.name)
    add_role_abilities get_ability_key("admin_#{user_class_name}") unless user_class_name.empty?

    # If user has roles get those abilities
    add_role_abilities @user.roles.map{ |role| role.to_s.prepend('admin_').to_sym } if @user.respond_to?(:roles)
  end
end

[james2m]

I'd certainly entertain a pull request to make them protected. :)

[james2m]

Thanks for the pull request. That's merged. I'll do a new release shortly. In the mean time;

gem 'canard', git: 'https://github.com/james2m/canard.git'

[elsom25]

thanks kindly... If I find a nicer way to handle multiple Abilities, I'll make a PR to reopen discussion

[james2m]

A subclass seems a pretty clean solution.

James McCarthy This is Hatch Ltd http://thisishatch.co.uk james@thisishatch.co.uk US: +1-212-203-7104 UK: +44-7946-463686

On 16 Jul 2014, at 11:20, Jesse McGinnis notifications@github.com wrote:

thanks kindly... If I find a nicer way to handle multiple Abilities, I'll make a PR to reopen discussion

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