[RUBY] [rails] Login screen implementation in devise

Login screen implementation in devise

  1. Add "gem'devise'" to Gemfile
gem 'devise'
  1. Have the application load the added devise.
$ bundle install
  1. devise initial settings
$ rails g devise:install

Now you are ready to use devise.

  1. Create User model and migration file Rails g devise Model name description is a devise-specific rule.
$ rails g devise User
  1. Reflect in database The User table is newly reflected in the database.
$ rails db:migrate
  1. Create a login screen for deivse
$ rails g devise:views
  1. Start the server with rails s -b and check the screen


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