Make "User" and dateformatting work

public/theme/skeleton/partials/_recordfooter.twig

@@ -4,8 +4,8 @@
         <span class="edit-link"><a href="{{ record.editlink() }}"><strong>{{ __('general.phrase.edit') }}</strong></a></span> -    
     {% endif %}
     {{ __('general.phrase.written-by-on', {
-        '%name%': record.user.displayname|default(__('Unknown')),
-        '%date%': record.datepublish|localedatetime("%A %B %e, %Y")
+        '%name%': record.author.displayname|default(__('Unknown')),
+        '%date%': record.publishedAt|localedatetime("%A %B %e, %Y")
     }) }}
 </p>
 

src/Entity/Content.php

@@ -247,6 +247,14 @@ class Content implements ObjectManagerAware
         return $this->author;
     }
 
+    /**
+     * Backward-compatible alias for `getAuthor`
+     */
+    public function geUser(): User
+    {
+        return $this->author;
+    }
+
     public function setAuthor(?User $author): void
     {
         $this->author = $author;

src/Entity/ContentMagicTraits.php

@@ -72,7 +72,7 @@ trait ContentMagicTraits
     public function magicLink()
     {
         return $this->urlGenerator->generate('record', [
-            'slug' => $this->getSlug(),
+            'slug' => $this->getSlug() ?: $this->getId(),
             'contenttypeslug' => $this->getDefinition()->get('singular_slug'),
         ]);
     }

src/Twig/AppExtension.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Bolt\Twig;
 
+use Symfony\Component\Intl\DateFormatter\IntlDateFormatter;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFilter;
 use Twig\TwigFunction;
@@ -19,10 +20,12 @@ class AppExtension extends AbstractExtension
      */
     public function getFilters(): array
     {
+        $safe = ['is_safe' => ['html']];
+
         return [
             new TwigFilter('order', [$this, 'dummy']),
             new TwigFilter('unique', [$this, 'unique']),
-            new TwigFilter('localedatetime', [$this, 'dummy']),
+            new TwigFilter('localedatetime', [$this, 'localedatetime'], $safe),
             new TwigFilter('showimage', [$this, 'dummy']),
             new TwigFilter('ucwords', [$this, 'ucwords']),
         ];
@@ -33,11 +36,13 @@ class AppExtension extends AbstractExtension
      */
     public function getFunctions(): array
     {
+        $safe = ['is_safe' => ['html']];
+
         return [
-            new TwigFunction('image', [$this, 'dummy'], ['is_safe' => ['html']]),
-            new TwigFunction('thumbnail', [$this, 'dummy'], ['is_safe' => ['html']]),
-            new TwigFunction('widgets', [$this, 'dummy'], ['is_safe' => ['html']]),
-            new TwigFunction('popup', [$this, 'dummy'], ['is_safe' => ['html']]),
+            new TwigFunction('image', [$this, 'dummy'], $safe),
+            new TwigFunction('thumbnail', [$this, 'dummy'], $safe),
+            new TwigFunction('widgets', [$this, 'dummy'], $safe),
+            new TwigFunction('popup', [$this, 'dummy'], $safe),
         ];
     }
 
@@ -59,4 +64,35 @@ class AppExtension extends AbstractExtension
     {
         return array_unique($array);
     }
+
+    public function localedatetime($dateTime, $format = '%B %e, %Y %H:%M', $locale = 0)
+    {
+        if (!$dateTime instanceof \DateTime) {
+            $dateTime = new \DateTime($dateTime);
+        }
+
+        // Check for Windows to find and replace the %e modifier correctly
+        // @see: http://php.net/strftime
+        $os = strtoupper(substr(PHP_OS, 0, 3));
+        $format = $os !== 'WIN' ? $format : preg_replace('#(?<!%)((?:%%)*)%e#', '\1%#d', $format);
+
+        // According to http://php.net/manual/en/function.setlocale.php manual
+        // if the second parameter is "0", the locale setting is not affected,
+        // only the current setting is returned.
+        $result = setlocale(LC_ALL, $locale);
+
+        if ($result === false) {
+            // This shouldn't occur, but.. Dude!
+            // You ain't even got locale or English on your platform??
+            // Various things we could do. We could fail miserably, but a more
+            // graceful approach is to use the datetime to display a default
+            // format
+            // $this->systemLogger->error('No valid locale detected. Fallback on DateTime active.', ['event' => 'system']);
+
+            return $dateTime->format('Y-m-d H:i:s');
+        }
+        $timestamp = $dateTime->getTimestamp();
+
+        return strftime($format, $timestamp);
+    }
 }