Eager Load Relationships with Specific Conditions

class Post extends Model
{
    public function comments()
    {
        return $this->hasMany(Comment::class);
    }
}

// Fetch posts and only load active comments
$posts = Post::with(['comments' => function ($query) {
    $query->where('is_active', true);
}])->get();

foreach ($posts as $post) {
    echo $post->title;
    foreach ($post->comments as $comment) {
        echo "- " . $comment->body;
    }
}

How it works: This snippet demonstrates how to eager load a relationship (`comments`) while applying specific conditions (`where('is_active', true)`) to the *related* model's query. This prevents the N+1 query problem and ensures that only relevant related data is loaded, optimizing performance and data retrieval by fetching all necessary related records in a single additional query, instead of one query per parent record.