[RUBY] How to prevent users who are not logged in from transitioning to the new or edit page

What I want to do this time

Users who are not logged in can only transition to the index and show pages, and when they try to transition to the new page or edit page, they are forced to transition to the index page.

Method

By performing the following processing, if you try to transition to a page other than the index and show pages while the user is not logged in, you will be forced to transition to the index page.

controller.rb

class PracticeController < ApplicationController
  before_action :move_to_index, except: [:index, :show]

  ---abridgement---

  private

  def  move_to_index
    redirect_to action: :index unless user_signed_in?
  end

Description

Code that is used repeatedly in the controller is made into a method under private.

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