navbar_messages.md

The Navbar Messages Component

Routes

Just like the other theme components, this one requires some route names to work.

• avanzu_admin_all_messages which should point to a list view of messages.
• avanzu_admin_show_message which should point to a particular message.

You could use the following route stubs with your routing.yml

	avanzu_admin_all_messages:
	  path: /messages/
	avanzu_admin_show_message:
	  path: /messages/{messageid}/

Data Model

In order to use this component, your user class has to implement the Avanzu\AdminThemeBundle\Model\MessageInterface

	<?php
	namespace MyAdminBundle\Model;
	// ...
	use Avanzu\AdminThemeBundle\Model\MessageInterface as ThemeMessage

	class MessageModel implements  ThemeMessage {
		// ...
		// implement interface methods
		// ...
	}

Event Listener

Next, you will need to create an EventListener to work with the MessageListEvent.

	<?php
	namespace MyAdminBundle\EventListener;

	// ...

	use Avanzu\AdminThemeBundle\Event\MessageListEvent;
	use MyAdminBundle\Model\MessageModel;

	class MyMessageListListener {

		// ...

		public function onListMessages(MessageListEvent $event) {

			foreach($this->getMessages() as $message) {
				$event->addMessage($message);
			}

		}

		protected function getMessages() {
			// retrieve your message models/entities here
		}

	}

Service.xml

Finally, you need to attach your new listener to the event system:

	<!-- Resources/config/services.xml -->
	<parameters>
	<!-- ... -->
	<parameter key="my_admin_bundle.message_list_listener.class">MyAdminBundle\EventListener\MyMessageListListener</parameter>
	<!-- ... -->
	</parameters>
	<services>
	<!-- ... -->
	<service id="my_admin_bundle.message_list_listener" class="%my_admin_bundle.message_list_listener.class%">
            <tag name="kernel.event_listener" event="theme.messages" method="onListMessages" />
        </service>

	<!-- ... -->
	</services>