Laravel repositories

Contracts\Repository.php

<?php

namespace App\Repositories\Contracts;

interface Repository
{
    public function all($columns = array('*'));

    public function paginate($perPage = 15, $columns = array('*'));

    public function create(array $data);

    public function update(array $data, $id);

    public function delete($id);

    public function find($id, $columns = array('*'));

    public function findBy($field, $value, $columns = array('*'));
}

Contracts\SomeRepository.php

<?php

namespace App\Repositories\Contracts;

use App\Models\User;

/**
 * Some Repository
 *
 * @mixin App\Repositories\Contracts\Repository
 */
interface SomeRepository
{
    public function byUser(User $user);
}

Eloquent\SomeRepository.php

<?php

namespace App\Repositories\Eloquent;

use App\Models\User;
use App\Repositories\Repository;
use App\Repositories\Contracts\SomeRepository as SomeRepositoryContract;

class SomeRepository extends Repository implements SomeRepositoryContract
{
    protected function model()
    {
        return App\Models\SomeModel::class;
    }
    
    public function byUser(User $user)
    {
        $this->model->whereUserId($user->id)->get();
    }
}

Exceptions\RepositoryException.php

<?php

namespace App\Repositories\Exceptions;

class RepositoryException extends \Exception
{
    //
}

Repository.php

<?php

namespace App\Repositories;

use Illuminate\Database\Eloquent\Model;

abstract class Repository implements Contracts\Repository
{
    protected $model;

    /**
     * @throws Exceptions\RepositoryException
     */
    public function __construct(App $app)
    {
        $this->makeModel();
    }

    abstract protected function model();

    public function all($columns = array('*'))
    {
        return $this->model->get($columns);
    }

    public function paginate($perPage = 15, $columns = array('*'))
    {
        return $this->model->paginate($perPage, $columns);
    }

    public function create(array $data)
    {
        return $this->model->create($data);
    }

    public function update(array $data, $id, $attribute = "id")
    {
        return $this->model->where($attribute, '=', $id)->update($data);
    }

    public function delete($id)
    {
        return $this->model->destroy($id);
    }

    public function find($id, $columns = array('*'))
    {
        return $this->model->find($id, $columns);
    }

    public function findBy($attribute, $value, $columns = array('*'))
    {
        return $this->model->where($attribute, '=', $value)->first($columns);
    }

    protected function makeModel()
    {
        $model = resolve($this->model());
        
        if (! $model instanceof Model)
            throw new Exceptions\RepositoryException("Class {$this->model()} must be an instance of Illuminate\\Database\\Eloquent\\Model");
        
        return $this->model = $model->newQuery();
    }
}