Move custom bundle

src/FormatTalksBundle/DependencyInjection/SculpinFormatTalksExtension.php

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

src/FormatTalksBundle/Resources/config/services.yml

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+services:
+    twig.format_talks:
+        class: 'FormatTalksBundle\Twig\FormatTalksExtension'
+        tags:
+            - { name: twig.extension }

src/FormatTalksBundle/SculpinFormatTalksBundle.php

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+<?php
+
+namespace FormatTalksBundle;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class SculpinFormatTalksBundle extends Bundle {}

src/FormatTalksBundle/Twig/FormatTalksExtension.php

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+<?php
+
+namespace FormatTalksBundle\Twig;
+
+class FormatTalksExtension extends \Twig_Extension
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getFilters()
+    {
+        return [
+            new \Twig_SimpleFilter('format_talks', [$this, 'formatTalks']),
+        ];
+    }
+
+    public function formatTalks($data, $onlyUpcoming = false, $onlyPrevious = false)
+    {
+        $event_data = $data['events'];
+
+        $talks = [];
+        foreach ($data['talks'] as $talk) {
+            foreach ($talk['events'] as $event) {
+                $event = array_merge($event, $event_data[$event['event']]);
+
+                $talks[] = compact('talk', 'event');
+            }
+        }
+
+        $today = (new \DateTime())->format('Y-m-d');
+
+        return collect($talks)
+            ->filter(function ($talk) use ($today, $onlyPrevious, $onlyUpcoming) {
+                if ($onlyUpcoming) {
+                    return $talk['event']['date'] > $today;
+                }
+
+                if ($onlyPrevious) {
+                    return $talk['event']['date'] < $today;
+                }
+
+                return true;
+            })->sortByDesc('event.date')->all();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'format_talks';
+    }
+}

src/FormatTalksBundle/composer.json

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+{
+    "require": {
+        "tightenco/collect": "^5.4"
+    }
+}