for NeoCyon

gistfile1.rb

# Client side should check the activation status of current account.
# If not you should popup an input dialog for the user to enter their activation code.
# 
# CLIENT SIDE CODE SAMPLE

def login(user_id, password)
  user = User.validate_login_from_server(user_id, password)
  if user.nil?
    # provided user_id or password is incorrect.
    # show an error message on client
    show_message("invalide username or password")
  else
    if user.activated? == true
      # user account is already activated
      # show the character selector screen
      show_character_selector_screen
    else
      # user account is not activated
      # show a input dialog on client screen for the user to enter their activation code
      show_activation_code_dialog("please enter your activation code")
    end
  end
end

# Server side should save the activation status of each account.
# If user's account is not activated and an activation code is provided, you should valid the activation code first and then update the status
#
# SERVER SIDE CODE SAMPLE

def login(user_id, password, activation_code = nil)
  user = DB.User.validate_login(user_id, password) # validate the user id & password from database
  if user.nil?
    return false # invalid user_id or password, login failed and return the error message to client
  else
    if user.activated? == true
      return true # user_id & password is matched, and account is already activated before, login succeed
    else
      # user account is not activated, you should check the activation code first
      code = DB.ActivationCode.check(activation_code)
      if code && code.used? == false
        DB.start_transaction do
          code.update_attribute(:used, true)
          code.save
          user.update_attribute(:activated, true)
          user.save
        end # update user's status and save to database, then login success
        return true
      else
        return false
      end
    end
  end
end