Repo.ProductRepository.php

<?php namespace App\Repos;

use App\Contracts\ProductDataInterface;

class ProductRepository
{
    /**
     * An instance of the Product model
     * @var \App\Contracts\ProductDataInterface
     */
    protected $data;
    
    /**
     * Injects the dependency
     * @param \App\Contracts\ProductDataInterface $data
     */
    public function __construct(ProductDataInterface $data)
    {
        $this->data = $data;
    }
    
    /**
     * Finds a product by the ID
     * @param int $id
     * @return \Illuminate\Support\Collection
     */
    public function findById($id)
    {
        return $this->data->find($id);
    }
    
    /**
     * Returns a new blank model
     * @return \App\Contracts\ProductDataInterface
     */
    public function new()
    {
        return new $this->data;
    }
    
    /**
     * Saves the model passed through
     * @param \App\Contracts\ProductDataInterface $data
     * @return bool
     */
    public function save(ProductDataInterface $data)
    {
        return $data->save();
    }
}