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module Merb
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module GlobalHelpers
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def logged_in?
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!session[:user_id].nil?
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end
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def error_messages(obj)
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if obj.errors.empty?
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nil
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else
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"<div id='model_errors'><ul>#{obj.errors.each_full { |msg| "<li>#{msg}</li>" }}</ul></div>"
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end
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end
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end
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end
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