Null object pattern for User as GuestUser
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2 changed files with 12 additions and 1 deletions
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@ -10,9 +10,10 @@ class ApplicationController < ActionController::Base
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def current_user
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@current_user ||= User.find(session[:user_id]) if session[:user_id]
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@current_user ||= GuestUser.new
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end
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def logged_in?
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@logged_in ||= !!current_user
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@logged_in ||= current_user.class.name.demodulize == 'User'
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end
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end
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@ -26,3 +26,13 @@ class User < ActiveRecord::Base
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self.add_role :admin
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end
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end
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class GuestUser
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def admin?
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false
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end
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def moderator?
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false
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end
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end
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