Repository pattern in Laravel 5.2

An implementation of this awesome Blog article by Bosnadev.

Based on Bosnadev/Repositories with some minor changes, mostly PSR-2 compliance.

You should, by all means, read the article and work it out for yourself, as the Repository Pattern is a very important concept to properly implement a data access layer for any medium/large scale application.

NOTE

As stated above, this package is a personal implementation of Bosniadev's for my projects and testings.

Thus, for the time being, you most definitely should use that package instead of this one, and follow it's instructions.

INSTALL

composer require "samkitano/repository"

Usage

<?php namespace App\Repositories;

use Kitano\Repository\Contracts\RepositoryInterface;
use Kitano\Repository\Eloquent\Repository;

class UseRepository extends Repository {

    public function model() {
        return 'App\User';
    }
}

<?php namespace App;

use Illuminate\Database\Eloquent\Model;

class User extends Model {

    protected $primaryKey = 'user_id';

    protected $table = 'users';

    protected $casts = [
        "verified"       => 'boolean'
    ];
}

<?php

namespace App\Http\Controllers;

use App\Repositories\UsersRepository as User;

class UsersController extends Controller {

    protected $user;

    public function __construct(User $user) {

        $this->user = $user;
    }

    public function index() {
        return response()->json($this->user->all());
    }
}

Available Methods

The following methods are available:

Kitano\Repository\Contracts\RepositoryInterface

public function all($columns = array('*'))
public function lists($value, $key = null)
public function paginate($perPage = 1, $columns = array('*'));
public function create(array $data)
public function update(array $data, $id, $attribute = "id")
public function delete($id)
public function find($id, $columns = array('*'))
public function findBy($field, $value, $columns = array('*'))
public function findAllBy($field, $value, $columns = array('*'))
public function findWhere($where, $columns = array('*'))

Kitano\Repository\Contracts\CriteriaInterface

public function apply($model, Repository $repository)

Example usage

Create a new user in repository:

$this->user->create($input);

Update existing user:

$this->user->update($input, $user_id);

Delete user:

$this->user->delete($id);

Find user by user_id;

$this->user->find($id);

you can also chose what columns to fetch:

$this->user->find($id, ['name', 'email', 'created_at']);

Get a single row by a single column criteria.

$this->user->findBy('email', $email);

Or you can get all rows by a single column criteria.

$this->user->findAllBy('active', true);

Get all results by multiple fields

$this->user->findWhere([
    'active' => true,
    ['created_at', '>', Carbon::yesterday()]
]);

Criteria

<?php

namespace App\Repositories\Criteria\Users;

use Carbon\Carbon;
use Kitano\Repository\Criteria\Criteria;
use Kitano\Repository\Contracts\RepositoryInterface as Repository;

class RegisteredToday extends Criteria {

    /**
     * @param $model
     * @param RepositoryInterface $repository
     * @return mixed
     */
    public function apply($model, Repository $repository)
    {
        $yesterday = Carbon::yesterday();
        $model     = $model->where('created_at', '>', $yesterday);

        return $model;
    }
}

<?php

namespace App\Http\Controllers;

use App\Repositories\Criteria\Users\RegisteredToday;
use App\Repositories\UsersRepository as User;

class UsersController extends Controller {

    /**
     * @var User
     */
    protected $user;

    public function __construct(User $user) {

        $this->user = $user;
    }

    public function index() {
        $this->user->addCriteria(new RegisteredToday());
        return response()->json($this->user->all());
    }
}

Credits

Bosnadev/Repositories

This great package by @andersao. Here is another package I used as reference.

This article by Shawn McCool

This Jeffrey Way's lesson from Laracasts

License

MIT license