The Full Stack Web Development - Model Associations

This tutorial covers adding a comment model and controller to a Rails application. It explains how to create and migrate a comments table, associate comments with posts, and nest comment routes within posts. The video also demonstrates setting up a comments controller, adding a form to post views, rendering comments, and implementing comment deletion. Finally, it introduces basic HTTP authentication to secure comment and post deletion.

What is the purpose of adding a second model and controller for comments?

• To manage user authentication

• To create a new type of post

• To handle user comments on posts

• To improve database performance

Which command is used to generate a new model for comments in Rails?

• rails generate migration Comment

• rails generate scaffold Comment

• rails generate controller Comment

• rails generate model Comment

What type of relationship is defined between posts and comments in the models?

• One-to-one

• One-to-many

• Self-referential

• Many-to-many

How are comments routes nested within posts routes in Rails?

• By using a 'namespace' directive

• By creating a separate route file

• By using the 'resources' method with a block

• By manually defining each route

What is the purpose of the 'create' method in the comments controller?

• To update an existing comment

• To add a new comment to a post

• To display all comments

• To delete a comment

Which method is used to find a post by its ID in the comments controller?

• Post.locate

• Post.find

• Post.search

• Post.find_by_id

What is the purpose of the 'comment_params' method in the comments controller?

• To delete a comment

• To render the comment form

• To validate user input

• To specify which comment fields are allowed

Where should the comments be displayed in the post view?

• Below the post content

• In a separate page

• Above the post title

• In a sidebar

What is the purpose of the 'destroy' method in the comments controller?

• To display a comment

• To delete a comment

• To create a new comment

• To update a comment

What is the next step after implementing comments and their deletion?

• Creating a new post type

• Improving database indexing

• Implementing basic authentication

• Adding user profiles