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Introduction to Ruby on Rails

User Model

Explore how to generate a User model using Devise in Ruby on Rails, establish a one-to-many relationship between users and links, and add the user_id attribute to links. Understand the steps to migrate your database and optimize queries with indexed foreign keys to manage user-associated data effectively.

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Now that you have your Link structure set up, you need to set up your User structure.

To do this, you will need to do the following:

  1. Create a User model to handle user data
  2. Associate User and Link
  3. Add user_id attribute/column to Link

Generating the User model

Devise

To generate the user model, you will use a Ruby gem called Devise. Devise provides Rails with a simple way to add user authentication to applications.

You will get Devise to dump all its views to our Rails app. By default, these views are contained within the gem itself and thus are non-modifiable.

You will run the following command:

rails g devise:views

This will create a devise folder in app/views/. ...