extream startup

home_controller.rb

  def index
    q = params[:q]
    if q == "what is the sum of 8 and 22"
      rezult = "30"
    elsif q.include? "what is your name"
      rezult = "torbjon"
    elsif q.include? "I was here before. what is my name"
      rezult = Stuff.first.name
    elsif q.include? "want to shop. What products do you have for sale (comma separated)"
      rezult = "banana, apple"
    elsif q.include? "how many dollars does one apple cost"
      rezult = "10"
    elsif q.include? "how many dollars does one banana cost"
      rezult = "10"
    elsif q.include? "what is my name"
      rezult = q.split("my name is ")[1].split(".")[0]
      Stuff.first.update_attributes(name: rezult)
    elsif q.include? "plus"
      rez = q.split("what is ")[1]
      rezult = rez.split(" plus ")[0].to_i + rez.split(" plus ")[1].to_i
    elsif q.include? "minus"
      rez = q.split("what is ")[1]
      rezult = rez.split(" minus ")[0].to_i + rez.split(" minus ")[1].to_i
    elsif q.include? "divided by"
      rez = q.split("what is ")[1]          
      rezult = rez.split(" divided by ")[0].to_i / rez.split(" divided by ")[1].to_i
    elsif q.include? "multiplied by"
      rez = q.split("what is ")[1]          
      rezult = rez.split(" multiplied by ")[0].to_i * rez.split(" multiplied by ")[1].to_i
    elsif q.include? "what colour is banana"
      rezult = "yellow"
    elsif q.include? "which city is the Eiffel tower in"
      rezult = "Paris"
    elsif q.include? "are primes:"
      arr = q.split(" are primes: ")[1].split(",")
      b = []
      c = []
      arr.each {|a| b << a.to_i}
      b.each {|b1| c << b1 if isPrime(b1.to_i) }
      rezult = c.join(", ")
    elsif q.include? "largest"
      arr = q.split(" largest: ")[1].split(",")
      b = []
      arr.each {|a| b << a.to_i}
      rezult = b.max
    elsif q.include? "who played James Bond in the film Dr No"
      rezult = "Sean Connery"
    elsif q.include? "what currency did Spain use before the Euro"
      rezult = "peseta"
    elsif q.include? "who wrote 'Specification by Example' book"
      rezult = "Gojko Adzic"
    elsif q.include? "what is the twitter id of the organizer of this dojo"
      rezult = "aleksejstruhans"
    else
      rezult = "error"
    end

    render :text => rezult
  end

  def isPrime number
    return false if number == 0 or number == 1

    i = 2
    limit = number / i
    while i < limit
      return false if number % i == 0
      i += 1
      limit = number / i
    end
    return true
  end