Added an adminNicetime twig filter to translate into admin's language

CHANGELOG.md

@@ -2,12 +2,12 @@
 ## 05/xx/2016
 
 1. [](#new)
-    *
+    * Added a `|adminNicetime` Twig filter to show nicetime in admin user's language
 1. [](#improved)
     * Fixed UI issue with Backup / Update buttons positioning
     * Tweaked placeholders color in login/new user panels [#542](https://github.com/getgrav/grav-plugin-admin/issues/542)
 1. [](#bugfix)
-    * Fix some untranslated strings
+    * Fixed several untranslated strings
     * Fix the version information after updating Grav from Admin
     * Fix a Twig autoescape issue on Plugins descriptions
     * Fix for showing empty drop-down with only one supported language [#522](https://github.com/getgrav/grav-plugin-admin/issues/522)

themes/grav/templates/partials/dashboard-pages.html.twig

@@ -9,7 +9,7 @@
             <tr>
                 <td class="triple page-title">
                     <a href="{{ base_url }}/pages/{{ latest.route|trim('/') }}"><i class="fa fa-fw fa-file-o"></i> {{ latest.title|e }}</a></td>
-                <td class="triple page-route">{{ latest.route }}</td><td>{{ latest.modified|nicetime }}</td>
+                <td class="triple page-route">{{ latest.route }}</td><td>{{ latest.modified|adminNicetime }}</td>
             </tr>
         {% endfor %}
         </table>

twig/AdminTwigExtension.php

@@ -40,6 +40,7 @@ class AdminTwigExtension extends \Twig_Extension
             new \Twig_SimpleFilter('tu', [$this, 'tuFilter']),
             new \Twig_SimpleFilter('toYaml', [$this, 'toYamlFilter']),
             new \Twig_SimpleFilter('fromYaml', [$this, 'fromYamlFilter']),
+            new \Twig_SimpleFilter('adminNicetime', [$this, 'adminNicetimeFilter']),
 
         ];
     }
@@ -60,4 +61,83 @@ class AdminTwigExtension extends \Twig_Extension
         $yaml = new Parser();
         return $yaml->parse($value);
     }
+
+    public function adminNicetimeFilter($date, $long_strings = true)
+    {
+        if (empty($date)) {
+            return $this->grav['admin']->translate('NICETIME.NO_DATE_PROVIDED', null, true);
+        }
+
+        if ($long_strings) {
+            $periods = [
+                "NICETIME.SECOND",
+                "NICETIME.MINUTE",
+                "NICETIME.HOUR",
+                "NICETIME.DAY",
+                "NICETIME.WEEK",
+                "NICETIME.MONTH",
+                "NICETIME.YEAR",
+                "NICETIME.DECADE"
+            ];
+        } else {
+            $periods = [
+                "NICETIME.SEC",
+                "NICETIME.MIN",
+                "NICETIME.HR",
+                "NICETIME.DAY",
+                "NICETIME.WK",
+                "NICETIME.MO",
+                "NICETIME.YR",
+                "NICETIME.DEC"
+            ];
+        }
+
+        $lengths = ["60", "60", "24", "7", "4.35", "12", "10"];
+
+        $now = time();
+
+        // check if unix timestamp
+        if ((string)(int)$date == $date) {
+            $unix_date = $date;
+        } else {
+            $unix_date = strtotime($date);
+        }
+
+        // check validity of date
+        if (empty($unix_date)) {
+            return $this->grav['admin']->translate('NICETIME.BAD_DATE', null, true);
+        }
+
+        // is it future date or past date
+        if ($now > $unix_date) {
+            $difference = $now - $unix_date;
+            $tense      = $this->grav['admin']->translate('NICETIME.AGO', null, true);
+
+        } else {
+            $difference = $unix_date - $now;
+            $tense      = $this->grav['admin']->translate('NICETIME.FROM_NOW', null, true);
+        }
+
+        for ($j = 0; $difference >= $lengths[$j] && $j < count($lengths) - 1; $j++) {
+            $difference /= $lengths[$j];
+        }
+
+        $difference = round($difference);
+
+        if ($difference != 1) {
+            $periods[$j] .= '_PLURAL';
+        }
+
+        if ($this->grav['language']->getTranslation($this->grav['user']->language,
+            $periods[$j] . '_MORE_THAN_TWO')
+        ) {
+            if ($difference > 2) {
+                $periods[$j] .= '_MORE_THAN_TWO';
+            }
+        }
+
+        $periods[$j] = $this->grav['admin']->translate($periods[$j], null, true);
+
+        return "$difference $periods[$j] {$tense}";
+    }
 }