Reusable Query Constraints with Laravel Eloquent Local Scopes

// In App\Models\Post.php
class Post extends Model
{
    public function scopePublished($query)
    {
        return $query->where('published', true);
    }

    public function scopePopular($query)
    {
        return $query->where('views', '>', 1000);
    }
}

// Usage:
$publishedPosts = App\Models\Post::published()->get();
$popularAndPublishedPosts = App\Models\Post::published()->popular()->get();

How it works: Local scopes allow you to define common sets of query constraints that can be easily reused across your application. By defining methods prefixed with 'scope' in your model, you can call these methods directly on the model or query builder, chaining them together to build complex queries in a clean and readable manner. This approach promotes DRY (Don't Repeat Yourself) principles and improves code maintainability.