sample ruby code

samples.rb

#------------------  Misc
  def clock_in
    timestamp = Timestamp.new
    timestamp.user_id = self.id
    timestamp.time_in = DateTime.now
    timestamp.save
  end

  def clock_out(user_id)
    timestamp = Timestamp.find_last_by_user_id(user_id)
    timestamp.time_out = DateTime.now if timestamp.time_out.nil? #accounts for the possibility of the user clicking logout twice
    timestamp.save
  end

  def helpers
    ActionController::Base.helpers
  end

  def readable_last_login!(login)
    helpers.distance_of_time_in_words(login[0].time_in, login[0].time_out, true)
  end

  def readable_all_time_hours!(total_time) #TODO: move to timestamps
    helpers.time_ago_in_words(Time.now - total_time.seconds, true)
  end

  def day_ordinal_suffix(time) #credit: Bay Gross
    day = time.day
    if day == 11 or day == 12
      return "th"
    else
      case day % 10
      when 1 then return "st"
      when 2 then return "nd"
      when 3 then return "rd"
      else return "th"
      end
    end
  end

  #returns text representing the information regarding a user's last login
  def last_login
    relevant_timestamps = Timestamp.valid_time_outs #TODO: fetch in batches, throw error if no valid timestamps found "you never logged out!"
    login = relevant_timestamps.each {|timestamp| return timestamp if (timestamp.user_id == self.id)} #the array should only contain one value, the last_login with a non-null time_out
    return login[0].time_in.time.strftime("%A") + ", " + MONTHS[login[0].time_in.month-1][1].to_s + " " + login[0].time_in.day.to_s + day_ordinal_suffix(login[0].time_in.day) + login[0].time_in.time.strftime(" at%l:%M%P") + " for " + readable_last_login!(login) + "."
  end

  #returns text representing the aggregate time logged by all users -- can be converted to just hours
  def all_time_hours #TODO: Move to Logins
    seconds_elapsed = 0
    Timestamp.find_each { |timestamp| (seconds_elapsed += (timestamp.time_out - timestamp.time_in)) if !timestamp.time_out.nil?} #TODO: fetch in batches
    return readable_all_time_hours!(seconds_elapsed) + " logged."
  end
end

###########################

#TODO: Test performance against against strtime
MONTHS=[
  [ 1, "January" ],
  [ 2, "February" ],
  [ 3, "March" ],
  [ 4, "April" ],
  [ 5, "May" ],
  [ 6, "June" ],
  [ 7, "July" ],
  [ 8, "August" ],
  [ 9, "September" ],
  [ 10, "October" ],
  [ 11, "November" ],
  [ 12, "December" ],
]