Nested understanding of each cycle

Question

I would like to understand how nested loops work each.

Suppose I have a blog application with a model Articleand a model Comment.

Quoting all my articles ...

- @articles.each do |article|
  = article.text

The completion of all my comments ...

- @comments.each do |comment|
  = comment.text

But what I really want is to skip all the comments of a particular article - this means that the second loop is nested inside the first.

How to achieve this?

Answer 1

Below is the code

- @articles.each do |article|
  = article.text
  #level of indentation matters.
  - article.comments.each do |comment| #this will loop through respected article comments
    = comment.text

Answer 2

- @article.comments.each do |comment|
  = comment.text

Note that this means that you set the @article variable to be equal to the specific Article object that you usually do in the controller.