Slim Model db instance - php

Question

sorry for my english.
stack: Slim 3 framework + Eloquent ORM.
Eloquent works as expected with Slim.
I want to use sort of a MVC pattern where thin controllers and fat models(all db queries and other heavy logic).
All I found is how to use it from routes like this:
$app->get('/loans', function () use ($app) {
$data = DB::table('loan_instalment')->get(); // works
$data = $this->db->table('loan_instalment')->get(); // works
...
}
What I want is ability to call public methods from choosen model, something like this:
use \src\models\Instalment;
$app->get('/loans', function () use ($app) {
$data = $this->model('Instalment')->getSomething(12);
...
}
and Model class is:
namespace src\models;
use Illuminate\Database\Eloquent\Model as Model;
use Illuminate\Database\Capsule\Manager as DB;
class Instalment extends Model
{
protected $table = 'loan_instalment';
public function getSomething($id)
{
return $this->table->find($id);
}
// bunch of other methods
}
My app looks like basic Slim skeleton, Eloquent settings:
$capsule = new \Illuminate\Database\Capsule\Manager;
$capsule->addConnection($container['settings']['db']);
$capsule->setAsGlobal();
$capsule->bootEloquent();
$container['db'] = function ($container) use ($capsule){
return $capsule;
};
Is it possible ?

Answer 1

If you want to use MVC pattern, you need to make base controller.
<?php
namespace App\Controller;
use Slim\Container;
class BaseController
{
protected $container;
public function __construct(Container $container)
{
$this->container = $container;
}
public function getContainer()
{
return $this->container;
}
public function __get($name)
{
return $this->container->{$name};
}
public function __set($name, $value)
{
$this->container->{$name} = $value;
}
}
And the container:
// Base Controller
$container[App\Controller\BaseController::class] = function ($c) {
return new App\Controller\BaseController($c);
};
$capsule = new \Illuminate\Database\Capsule\Manager;
$capsule->addConnection($container['settings']['db']);
$capsule->setAsGlobal();
$capsule->bootEloquent();
$container['db'] = function ($container) use ($capsule){
return $capsule;
};
Highly recommended to use static function on models
<?php
namespace App\models;
use Illuminate\Database\Eloquent\Model as Model;
use Illuminate\Database\Capsule\Manager as DB;
class Instalment extends Model
{
protected $table = 'loan_instalment';
public static function getSomething($id)
{
return Instalment::find($id);
}
}
And now you code become:
<?php
use App\models\Instalment;
$app->get('/loans', function ($request, $response, $args) {
$data = Instalment::getSomething(12);
...
}
The controller:
<?php
namespace App\Controller;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use App\models\Instalment;
class HomeController extends BaseController
{
public function __invoke(Request $request, Response $response, Array $args)
{
$data = Instalment::getSomething(12);
// load the template
return $response;
}
}
And the route for the controller
<?php
$app->get('/', App\Controller\HomeController::class);
It looks cleaner, isn't it?
More tutorial:
My Blog
Rob Allen's Blog

Answer 2

You could use the abbility of Slim to use controllers.
Make a basic controller:
// BasicController.php
<?php
namespace src\Controllers;
class BasicController
{
public function model(string $model)
{
return new $model();
}
}
and then in your controllers extend this class and add it to the slim container
//SomeController.php
<?php
namespace src\Controllers;
use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;
use \src\models\Instalment as Instalment;
class SomeController extends BasicController
{
public function index(Request $request, Response $response, $args)
{
$this->model(Instalment::class)->getSomethingOutOfDB;
//do something else
}
}
...
//container.php
use \Slim\Container as Container;
$container[\src\Controllers\HomeController::class] = function(Container $container) {
return new \src\Controllers\Homecontroller();
}
...
...
//routes.php
$app->get('/someroute', \src\Controllers\HomeController::class . ':index');
...
Another possibility is to extend your \Slim\App by:
//newApp.php
namespace scr\App
class newApp extends \Slim\App
{
public function model(string $model)
{
return new $model();
}
}
I actually would advice against these both methods, and not load your models in this way, since this is considered bad practice.
It is better just to use:
//routes.php
...
use src\Models\Instalment;
...
...
$app->get('/someroute', function() {
$instalment = new Instalment();
// do something with it...
});