How to Order Laravel Comments by Post ID?

Ordering Comments by Post ID

In Laravel, when iterating through a collection of related models, it's often necessary to order the results. By default, comments are not ordered by any specific criteria, leading to potentially unsorted output.

To order the comments posted by the author of a particular post by their post ID, extend the user-comment relationship with a query function in the User model:

<?php
public function comments()
{
    return $this->hasMany('Comment')->orderBy('column');
}
?>

Replace "column" with the actual database column name you wish to order by. This will ensure that the comments are retrieved in the specified order when accessed via the comments relationship in the Post model.

For instance, to order the comments by the post ID in descending order, use:

<?php
public function comments()
{
    return $this->hasMany('Comment')->orderBy('post_id', 'DESC');
}
?>

With this modification, the foreach loop can now be modified to display the comments in the desired order:

<pre class="brush:php;toolbar:false">
foreach($post->user->comments as $comment)
{
    echo "<li>" . $comment->title . " (" . $comment->post->id . ")</li>";
}

This will output the comments in the following order:

I love this post (3)
This is the second Comment (3)
This is a comment (5)

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