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Jaxon integration for Symfony

This package integrates the Jaxon library into the Symfony framework.

Installation

Add the following lines in the composer.json file, and run the composer update command.

"require": {
    "jaxon-php/jaxon-symfony": "^4.0"
}

Or run the composer require jaxon-php/jaxon-symfony command.

Add the following settings in the config/services.yaml file, to declare the Jaxon service.

services:
    ...
    jaxon.ajax.utils:
        class: Jaxon\Symfony\Utils
    Jaxon\Symfony\Jaxon:
        arguments:
            - '@kernel'
            - '@logger'
            - '@twig'
            - '@=service(service("jaxon.ajax.utils").getSessionService())'
            - '%jaxon%'
imports:
    ...
    - { resource: jaxon.yaml }

Create and edit the config/jaxon.yaml file to suit the needs of your application. A sample config file is available in this repo.

This config file by default registers Jaxon classes in the jaxon/ajax directory with the \Jaxon\Ajax namespace. Make sure this directory exists, even if it is empty.

The last step is to define a controller action to process Jaxon ajax requests, and insert Jaxon js and css codes in the pages where they are required.

use Jaxon\Symfony\Jaxon;

class DemoController extends AbstractController
{
    /**
     * Process Jaxon ajax requests. This route must be the same that is set in the Jaxon config.
     *
     * @Route("/ajax", name="jaxon.ajax")
     */
    public function jaxon(Jaxon $jaxon)
    {
        if(!$jaxon->canProcessRequest())
        {
            // Jaxon failed to find a plugin to process the request
            return; // Todo: return an error message
        }

        $jaxon->processRequest();
        return $jaxon->httpResponse();
    }

    /**
     * Insert Jaxon js and css codes in the page.
     *
     * @Route("/", name="homepage")
     */
    public function index(Jaxon $jaxon)
    {
        // Insert Jaxon codes into the page
        return $this->render('demo/index.html.twig', [
            ...
            'jaxonCss' => $jaxon->css(),
            'jaxonJs' => $jaxon->js(),
            'jaxonScript' => $jaxon->script(),
        ]);
    }
}

Configuration

The settings in the config/jaxon.yml config file are separated into two sections. The options in the lib section are those of the Jaxon core library, while the options in the app sections are those of the Symfony application.

The following options can be defined in the app section of the config file.

Name Description
directories An array of directory containing Jaxon application classes
views An array of directory containing Jaxon application views

By default, the views array is empty. Views are rendered from the framework default location. There's a single entry in the directories array with the following values.

Name Default value Description
directory jaxon/ajax The directory of the Jaxon classes
namespace \Jaxon\Ajax The namespace of the Jaxon classes
separator . The separator in Jaxon js class names
protected empty array Prevent Jaxon from exporting some methods

Usage

The Jaxon classes

The Jaxon classes can inherit from \Jaxon\App\CallableClass. By default, they are located in the jaxon/ajax dir of the Symfony application, and the associated namespace is \Jaxon\Ajax.

This is a simple example of a Jaxon class, defined in the jaxon/Ajax/HelloWorld.php file.

namespace Jaxon\Ajax;

class HelloWorld extends \Jaxon\App\CallableClass
{
    public function sayHello()
    {
        $this->response->assign('div2', 'innerHTML', 'Hello World!');
        return $this->response;
    }
}

Dependency injection

Services in Symfony can be declared as public or private, and injected in Jaxon classes.

Since Jaxon uses a container to fetch to the Symfony services that are injected in his classes, by default it will be able to get access only to services declared as public.

A service locator can be defined for Jaxon in the config/services.yaml file, in order to provide access to private services.

services:
  ...
    jaxon.service_locator:
        public: true
        class: Symfony\Component\DependencyInjection\ServiceLocator
        tags: ['container.service_locator']
        arguments:
            -
                Twig\Environment: '@twig'

The service locator must be declared as public, and take all the services that can be passed to Jaxon classes as arguments. See the Symfony service locators documentation.

Contribute

  • Issue Tracker: github.com/jaxon-php/jaxon-symfony/issues
  • Source Code: github.com/jaxon-php/jaxon-symfony

License

The package is licensed under the BSD license.

About

Jaxon library integration for the Symfony framework https://www.jaxon-php.org.

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