Phalcon Repositories

Introduction

Phalcon Repositories lets you easily build repositories for your Phalcon models, for both SQL and Mongo drivers.

PHP 7.1+ and Phalcon 3.2+ are required.

Installation

Phalcon Repositories can be installed through Composer, just run composer require michele-angioni/phalcon-repositories.

Usage with SQL Drivers

The abstract class AbstractRepository consists of a model wrapper with numerous useful queries to be performed over the Phalcon models. This way implementing the repository pattern becomes straightforward.

As an example let's say we have a MyApp\Models\Posts model.

The easiest way to create a Posts repository is to define a class as such

<?php

namespace MyApp\Repos;

use MicheleAngioni\PhalconRepositories\AbstractRepository;
use MyApp\Models\Posts;

class PostsRepository extends AbstractRepository
{
    protected $model;

    public function __construct(Posts $model)
    {
        $this->model = $model;
    }
}

Suppose now we need the Post repository in our PostController. For example we can retrieve a Post this way

<?php

namespace MyApp\Controllers;

use MyApp\Repos\PostsRepository as PostsRepo;
use Phalcon\Mvc\Controller;
use MyApp\Models\Posts;

class PostsController extends Controller 
{
    
    public function showAction($idPost)
    {
        $postsRepo = new PostsRepo(new Posts());
        
        $post = $postsRepo->find($idPost);

        // Use the retrieved post
    }
}

We could also bind out repository to the container through the Phalcon dependency injection. We just need to add a new postRepo service in our bootstrap file

$di->set('postsRepo', function () {
    return new MyApp\Repos\PostsRepository(new \MyApp\Models\Posts());
});

and than use it in the controller

<?php

namespace MyApp\Controllers;

use Phalcon\Mvc\Controller;

class PostsController extends Controller 
{
    
    public function showAction($idPost)
    {
        $postsRepo = $this->getDI()->getPostsRepo();
        
        $post = $postsRepo->find($idPost);

        // Use the retrieved Post
    }
}

Usage with MongoDB

The abstract class AbstractCollectionRepository, similary to AbstractRepository, consists of a model wrapper with numerous useful queries to be performed over the Phalcon collections. This way implementing the repository pattern becomes straightforward.

As an example let's say we have a MyApp\Models\Posts collection

<?php

namespace MyApp\Models;

use Phalcon\Mvc\MongoCollection;

class Posts extends MongoCollection
{
    use \MicheleAngioni\PhalconRepositories\MongoFix; // Fix for Phalcon 3.1.x with PHP 7.1

    [...]
}

The easiest way to create a Posts repository is to define a class as such

<?php namespace MyApp\Repos;

use MicheleAngioni\PhalconRepositories\AbstractCollectionRepository;
use MyApp\Models\Posts;

class PostsRepository extends AbstractCollectionRepository
{
    protected $model;

    public function __construct(Posts $model)
    {
        $this->model = $model;
    }
}

Suppose now we need the Post repository in our PostController. For example we can retrieve a Post this way

<?php

namespace MyApp\Controllers;

use MyApp\Repos\PostsRepository as PostsRepo;
use Phalcon\Mvc\Controller;
use MyApp\Models\Posts;

class PostsController extends Controller
{

    public function showAction($idPost)
    {
        $postsRepo = new PostsRepo(new Posts());

        $post = $postsRepo->find($idPost);

        // Use the retrieved Post
    }
}

We could also bind out repository to the container through the Phalcon dependency injection. We just need to add a new postRepo service in our bootstrap file

$di->set('postsRepo', function () {
    return new MyApp\Repos\PostsRepository(new \MyApp\Models\Posts());
});

and than use it in the controller

<?php

namespace MyApp\Controllers;

use Phalcon\Mvc\Controller;

class PostsController extends Controller
{

    public function showAction($idPost)
    {
        $postsRepo = $this->getDI()->getPostsRepo();

        $post = $postsRepo->find($idPost);

        // Use the retrieved post
    }
}

Method list

The AbstractRepository and AbstractCollectionRepository empower automatically our repositories of the following public methods:

• all()
• find($id)
• findOrFail($id)
• first()
• firstOrFail()
• firstBy(array $where = [])
• firstOrFailBy(array $where = [])
• getBy(array $where = [])
• getByLimit(int $limit, array $where = [])
• getByOrder(string $orderBy, array $where = [], string $order = 'desc', int $limit = 0)
• getIn(string $whereInKey, array $whereIn = [], string $orderBy = null, string $order = 'desc', int $limit = 0)
• getNotIn(string $whereNotInKey, array $whereNotIn = [], string $orderBy = null, string $order = 'desc', int $limit = 0)
• getInAndWhereByPage(int $page = 1, int $limit = 10, string $whereInKey = null, array $whereIn = [], $where = [], $orderBy = null, string $order = 'desc')
• getByPage(int $page = 1, int $limit = 10, array $where = [], string $orderBy = null, string $order = 'desc')
• create(array $inputs = [])
• updateById($id, array $inputs)
• destroy($id)
• destroyFirstBy(array $where)
• count()
• countBy(array $where = [])

The AbstractRepository contains also the methods:

• getByGroupBy(string $groupBy, array $where = [], bool $addCounts = false)
• truncate()

while the AbstractCollectionRepository allows for aggregations through:

• getAggregate(array $match = [], array $project = [], array $group = [], int $limit = 0)

The $where parameter with SQL drivers

The $where parameter allows the use of various operators with the SQL driver, other than the equals =, even the LIKE keyword.

The following formats are supported:

• 'key' => 'value'

  Examples:

  $where = ['username' => 'Richard']

• 'key' => ['value', 'operator']

  Examples:

  $where = ['age' => [30, '=']]
  $where = ['age' => [30, '<']]
  $where = ['age' => [30, '>']]
  $where = ['username' => ['%Fey%', 'LIKE']]

• ['key1%OR%key2'] => ['value', 'operator']

  Examples:

  `$where = ['username%OR%description' => ['%Feynman%', 'LIKE']]`

SQL Injection

The AbstractRepository and AbstractCollectionRepository use bind parameters for all $id and $where clauses. $inputs parameters in create and update queries are automatically escaped by Phalcon.

The security of the other parameters ($whereInKey, $whereIn, $orderBy, $order, $limit etc.) is up to you.

Testing

Install dependencies with composer install and then run vendor/bin/phpunit tests.

Contribution guidelines

Phalcon Repositories follows PSR-1, PSR-2 and PSR-4 PHP coding standards, and semantic versioning.

Pull requests are welcome.

License

Phalcon Repositories is free software distributed under the terms of the MIT license.