[RUBY] [Rails] devise introduction method

What is devise

--One of the gems (libraries) that can easily implement the authentication function in applications created with Rails. --You can create login functions such as login and sign-up.

Introduction method

① Add to Gemfile


gem 'devise'

② Execute bundle install


$ bundle install

③ Create a configuration file


$ rails g devise:install

Newly created file


④ Create a User model with devise function


$ rails g devise user

Newly created file


⑤ Create a devise view file


$ rails g devise:views

Newly created file

app/views/devise #Various view files in the following directories

This completes the devise installation

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