Creating Services in Prestashop 1.7

In this blog, we are going to learn how to setup namespace and define services in Prestashop and also, how to get the service in symfony container.

Service container contains services, which is a special PHP object that perform some task which is complete in itself.

Let’s understand the entire process to create a service in prestashop with the help of taking an example as given below.

First of all, we will setup a namespace PositiveIntegerService. In this class, we will define a method checkPositiveNumber() which will return true for the positive number and false for negative number.

Create Symfony service

<?php
// modules/mymodule/src/PositiveIntegerService.php
namespace Webkul\MyModule;
class PositiveIntegerService {
    private $number;
    /**
    * @param string $number
    */
    public function __construct($number) {
        $this->number = $number;
    }
    /**
    * check number is positive
    * @return bool
    */
    public function checkPositiveNumber() {
        return ((int)$this->number) > 0 ? true : false;
    }
}

So, now you have successfully setup your namespace. Now you can define your services in the config/services.yml file of your module.

# mymodule/config/services.yml
services:
    _defaults:
        public: true
    Webkul.mymodule.PositiveIntegerService:
        class: Webkul\MyModule\PositiveIntegerService
        arguments:
           - "12"

So, now you can get your service from Symfony container in which you have to create the object of service.

<?php
// modules/mymodule/src/Controller/WkTestServiceController.php
namespace Webkul\MyModule\WkTestServiceController;
use PrestaShopBundle\Controller\Admin\FrameworkBundleAdminController;
class WkTestServiceController extends FrameworkBundleAdminController
{
    public function checkServiceAction()
    {
        // get your Service
        $service = $this->get('Webkul.mymodule.PositiveIntegerService');
        return $service->checkPositiveNumber();
    }
}

In this example we have created a object of the service and call its method checkPositiveNumber().

This is how we can setup the namespace and create the services in Prestashop modules and get the service in symfony container.

That’s all.

Note:
This is a basic example in which we just created a basic service. But we can create multiple namespaces and use them in symfony containers.

In a module, Symfony services definition can be modified in a module, by overriding PrestaShop symfony services.

If any issue or doubt please feel free to mention it in the comment section.

I would be happy to help.

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