gistfile1.rb

  def calculate_survey_score(user)
    return false if !self.taken?(user)
    all_questions = self.questions.order("id ASC").to_a
    case self.name
    when "Personality"
      introvert  = 0
      extrovert  = 0
      sensing    = 0
      intuition  = 0
      thinking   = 0
      feeling    = 0
      judgement  = 0
      perception = 0


      self.answers.where(:user_id => user.id).order("survey_question_id ASC").each do |a|
        case a.survey_question_id
        #begin introversion
        when all_questions[0].id #question 1
          introvert += 1 if a.content == "image:thinker"
          extrovert += 1 if a.content == "image:monument"
        when all_questions[1].id #question 2
          introvert += 1 if a.content == "tired"
          extrovert += 1 if a.content == "energized"
        when all_questions[2].id #question 3
          sub_introvert = 0 and sub_extrovert = 0
          sub_introvert += 1 if a.content == "image:yoga"
          sub_introvert += 1 if a.content == "image:jogging"
          sub_introvert += 1 if a.content == "image:tv"
          sub_introvert += 1 if a.content == "reading"
          sub_extrovert += 1 if a.content == "image:basketballsam1"
          sub_extrovert += 1 if a.content == "image:baseball"
          sub_extrovert += 1 if a.content == "image:dinner_party"
          sub_extrovert += 1 if a.content == "image:bar"

          introvert += 1 if sub_introvert >= 2
          extrovert += 1 if sub_extrovert >= 2          
        #begin perceiving
        when all_questions[3].id #question 4
          sensing   += 1 if a.content == "Present"
          intuition += 1 if a.content == "Future"
        when all_questions[4].id #question 5
          sensing   += 1 if a.content == "Practicalities"
          intuition += 1 if a.content == "Possibilities"
        when all_questions[5].id #question 6
          sensing   += 1 if a.content == "image:cubes"
          intuition += 1 if a.content == "image:portrait"
        #begin judging
        when all_questions[6].id #question 7
          thinking += 1 if a.content == "Decide with heart"
          feeling  += 1 if a.content == "Decide with head"
        when all_questions[7].id #question 8
          thinking += 1 if a.content == "Fariness"
          feeling  += 1 if a.content == "Harmony"
        when all_questions[8].id #question 9
          thinking += 1 if a.content == "image:superman"
          feeling  += 1 if a.content == "image:batman"
        when all_questions[9].id #question 10
          thinking += 1 if a.content == "image:abe"
          feeling  += 1 if a.content == "image:ghandi"
        #begin lifestyle
        when all_questions[10].id #question 11
          judgement  += 1 if a.content == "Detailed itinery"
          perception += 1 if a.content == "Randomly explore"
        when all_questions[11].id #question 12
          judgement  += 1 if a.content == "Control"
          perception += 1 if a.content == "Flexibility"
        when all_questions[12].id #question 13
          judgement  += 1 if a.content == "Structure"
          perception += 1 if a.content == "Organized Chaos"
        end
        
   
      end 

      #introversion calculation
      introversion = extrovert > introvert  ? "E" : "I"
      perceiving   = sensing   > intuition  ? "S" : "N"
      judging      = thinking  > feeling    ? "T" : "F"
      lifestyle    = judgement > perception ? "J" : "P"

      return "#{introversion}#{perceiving}#{judging}#{lifestyle}"
    else
      return false
    end
  end