Repository Cache Decoration

CacheUserRepositoryDecorator.php

<?php

class CacheUserRepositoryDecorator implements UserRepository {
    
    protected $userRepository;
    
    protected $cache;
    
    protected $cacheTag = 'users';
    
    public function __construct(UserRepository $userRepository)
    {
        $this->userRepository = $userRepository;
        $this->cache = app('cache');
    }

    /**
     * Create a new User in persistence
     * @return mixed
     */
    public function create()
    {
        if ($user = $this->userRepository->create()) {
            /* Flush cache tag upon creation of a new user.
               You'd also flush on update, deletion, etc. */
            $this->cache->tags($this->cacheTag)->flush();
            
            return $user;
        }
        
        return null;
    }

    /**
     * Get all Users
     * @return Collection
     */
    public function all()
    {
        return $this->cache->remember(120, function () {
            return $this->userRepository->all();
        });
    }
    
}

EloquentUserRepository.php

<?php

class EloquentUserRepository implements UserRepository {

    /**
     * Create a new User in persistence
     * @return mixed
     */
    public function create()
    {
        $user = User::create();
        
        return $user;
    }

    /**
     * Get all Users
     * @return Collection
     */
    public function all()
    {
        return User::query()->get();
    }

} 

UserRepository.php

<?php

interface UserRepository {
    
    /**
     * Create a new User in persistence
     * @return mixed
     */
    public function create();

    /**
     * Get all Users
     * @return Collection
     */
    public function all();
    
}

UserServiceProvider.php

<?php

/* In the Service Provider */
$this->app->bind(UserRepository::class, function ($app) {
    return new CacheUserRepositoryDecorator($app->make(EloquentUserRepository::class));
});