EventListener

Event/Listener

*event
src/AppBundle/Event

za svaki event pravimo dvije klase jednu sa konstantama

DemoEvents

final class DemoEvents
{

    const SUBMITTED = 'influence.demo.submitted';
    const SCHEDULED = 'influence.demo.scheduled';

}

jednu za logiku eventa

class DemoEvent extends Event
{

    /**
     * @var Demo $_demo
     */
    private $_demo;

    public function __construct(Demo $demo)
    {
        $this->_demo = $demo;
    }

    /**
     * @return Demo
     */
    public function getDemo(): Demo
    {
        return $this->_demo;
    }

}

-------------------------------------
listener

src/AppBundle/listener/EmailNotification

koristimo folder EmailNotification za sumbitted bundle jer nakon svakog sumbitovanog demoa saljemo email adminu


class DemoEventListener
{
    /**
     * @var MailTwigEnvironment|\Twig_Environment
     */
    protected $twig;

    /**
     * @var \Swift_Mailer
     */
    protected $mailer;

    /**
     * @var string
     */
    protected $from;

    /**
     * @var string
     */
    protected $appName;

    public function __construct(MailTwigEnvironment $twig, \Swift_Mailer $mailer, $from, $appName)
    {
        $this->twig    = $twig;
        $this->mailer  = $mailer;
        $this->from    = $from;
        $this->appName = $appName;
    }

    public function onSubmited(DemoEvent $event)
    {

        $template = ':email/demo:submited.html.twig';
        $this->sendMail($template, $event);

    }


    public function onScheduled(DemoEvent $event)
    {

        $template = ':email/demo:scheduled.html.twig';
        $this->sendMail($template, $event);

    }


    /**
     * Sends a mail
     *
     * @param $template
     * @param DemoEvent $event
     */
    private function sendMail($template, DemoEvent $event)
    {


            $subject = $this->twig->renderBlock($template, 'subject', [
                'name' => $event->getDemo()->getName(),
            ]);
            $body    = $this->twig->renderBlock($template, 'body', [
                'demo'   => $event->getDemo(),
            ]);

            $message = \Swift_Message::newInstance()
                ->setTo("florian@influencevision.com")
                ->setSubject($subject)
                ->setBody($body)
                ->setFrom([$this->from => '[NoReply] ' . $this->appName])
                ->setContentType("text/html");

            $this->mailer->send($message);


    }

}

----------------------------------------------------------------------------

listenere je potrebno registrovati  u config/services/email_notification.yml

influence.listener.demo:
        class: AppBundle\Listener\EmailNotification\DemoEventListener
        arguments: ['@influence.mail.twig', '@mailer', '%influence.activity_log.mail.from%', '%influence.app_name%']
        public: false
        tags:
            - { name: kernel.event_listener, event: influence.demo.submitted, method: onSubmited }



'%influence.activity_log.mail.from%' - parametar koji je definisan u app/config/parameters.yml

'%..%' - parametri koji su definisani u parameters.yml

'@influence.mail.twig' - parametar koji je vec definisan u symfony-ju (kada pocinje sa @)

event: influence.demo.submitted - event koji je definisan u DemoEvens

method: onSubmited - metoda u DemoEventListener

arguments se prosledjuju u konstruktor klase DemoEventListener

----------------------------------------------------

view - Twig

mozemo da iskoristimo vec postojeci templejt (ne pravimo svoj folder)
app/Resources/views/email/demo/submited.html.twig

*********
{% extends ':email/layout/'~ locale ~':index.html.twig' %}

{% block subject %} {{ 'mail.demo.submited.subject' | trans({}, 'messages') }} {% endblock subject %}

    {% block mail_title %}
        {{ 'mail.demo.submited.title' | trans({'{{ recipient }}': demo.name}, 'messages') }}
    {% endblock mail_title %}

    {% block mail_body %}
        {{ 'mail.demo.submited.body' | trans({'{{ name }}' : demo.name, '{{ company }}' : demo.company}, 'messages') }}
    {% endblock mail_body %}

    {% block mail_action_link %}
        {{ project_domain ~ path('app_campaign_show', { campaign: campaign.id }) }}
    {% endblock mail_action_link %}

    {% block mail_action_text %}
        {{ 'mail.demo.submited.action' | trans({}, 'messages') }}
    {% endblock mail_action_text %}

********
npr.  app/Resources/translation/messages.en.yml

mail.demo.submited.subject

mail:
	...
	demo:
        submited:
            subject: New demo request
            title: 'Hello {{ recipient }},'
            body: 'The briefing on the campaign {{ campaign }} has been updated. {{ company }} Simply open campaign and see
                   details or changes!'
            action: Open campaign


trans() za message je defaultni i ne treda ga definisati
{{ project_domain ~ path('admin_dashboard') }} je putanja za akciju koju definisemo


------------------------


event okidamo u COntroller/Homepage/Seo/DemoCOntroller

get('event_dispatcher') ne moramo dodavati kao parametar funkcije