Add speakers bundle

src/Speakers/services.yml

@@ -0,0 +1,4 @@
+services:
+  App\Speakers\TwigExtension\SpeakersExtension:
+    tags:
+      - { name: twig.extension }

src/Speakers/src/DependencyInjection/SculpinSpeakersExtension.php

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+<?php
+
+namespace App\Speakers\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+use Symfony\Component\Config\FileLocator;
+
+class SculpinSpeakersExtension extends Extension
+{
+  public function load(array $configs, ContainerBuilder $container)
+  {
+    $loader = new YamlFileLoader($container, new FileLocator(__DIR__ . '/../../'));
+    $loader->load('services.yml');
+  }
+}

src/Speakers/src/SculpinSpeakersBundle.php

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+<?php
+
+namespace App\Speakers;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class SculpinSpeakersBundle extends Bundle
+{
+}

src/Speakers/src/TwigExtension/SpeakersExtension.php

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+<?php
+
+namespace App\Speakers\TwigExtension;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class SpeakersExtension extends AbstractExtension
+{
+    public function getFunctions()
+    {
+        return [
+            new TwigFunction('speakerSessions', [$this, 'getSpeakerSessions'])
+        ];
+    }
+
+    public function getSpeakerSessions($speaker, $sessions): array
+    {
+        return collect($sessions)->filter(function ($session) use ($speaker): bool {
+            return collect($session['speakers'])->contains($speaker['name']);
+        })->values()->toArray();
+    }
+}