diff --git a/CHANGELOG.md b/CHANGELOG.md
index dcfe970..77c9e3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
-0.8.2 - dev
+dev
 - [ ] literal rank of writer depending of num of com
-- [ ] add dashboard module
+- add dashboard module
+- update translations
+- update to PSR12
 
 0.8.1 - 2021.09.17
 - fix plurals and better translation
diff --git a/_admin.php b/_admin.php
index 459867f..5a9ccda 100644
--- a/_admin.php
+++ b/_admin.php
@@ -1,18 +1,202 @@
 <?php
 /**
  * @brief topWriter, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
 
-require dirname(__FILE__) . '/_widgets.php';
\ No newline at end of file
+require dirname(__FILE__) . '/_widgets.php';
+
+# Dashboard item and user preference
+$core->addBehavior(
+    'adminDashboardItems',
+    ['topWriterAdmin', 'adminDashboardItems']
+);
+$core->addBehavior(
+    'adminDashboardOptionsForm',
+    ['topWriterAdmin', 'adminDashboardOptionsForm']
+);
+$core->addBehavior(
+    'adminAfterDashboardOptionsUpdate',
+    ['topWriterAdmin', 'adminAfterDashboardOptionsUpdate']
+);
+
+/**
+ * @ingroup DC_PLUGIN_TOPWRITER
+ * @brief Display most active users - admin methods.
+ * @since 2.6
+ */
+class topWriterAdmin
+{
+    public static function adminDashboardItems(dcCore $core, $__dashboard_items)
+    {
+        $pref = self::setDefaultPref($core);
+
+        # top posts
+        if ($pref['topWriterPostsItems']) {
+            $lines = topWriter::posts($core, $pref['topWriterPostsPeriod'], $pref['topWriterPostsLimit']);
+            if (empty($lines)) {
+                return null;
+            }
+
+            $li = [];
+            foreach ($lines as $k => $line) {
+                $li[] = sprintf('<li><strong>%s</strong> %s (%s)</li>', $k, $line['author'], $line['count']);
+            }
+
+            # Display
+            $__dashboard_items[0][] = '<div class="box small" id="topWriterPostsItems">' .
+            '<h3>' . html::escapeHTML(__('Top writer: entries')) . '</h3>' .
+            '<ul>' . implode('', $li) . '</ul>' .
+            '</div>';
+        }
+
+        # top comments
+        if ($pref['topWriterCommentsItems']) {
+            $lines = topWriter::comments($core, $pref['topWriterCommentsPeriod'], $pref['topWriterCommentsLimit']);
+            if (empty($lines)) {
+                return null;
+            }
+
+            $li = [];
+            foreach ($lines as $k => $line) {
+                $li[] = sprintf('<li><strong>%s</strong> %s (%s)</li>', $k, $line['author'], $line['count']);
+            }
+
+            # Display
+            $__dashboard_items[0][] = '<div class="box small" id="topWriterCommentsItems">' .
+            '<h3>' . html::escapeHTML(__('Top writer: comments')) . '</h3>' .
+            '<ul>' . implode('', $li) . '</ul>' .
+            '</div>';
+        }
+    }
+
+    public static function adminDashboardOptionsForm(dcCore $core)
+    {
+        $pref = self::setDefaultPref($core);
+
+        echo
+        '<div class="fieldset">' .
+        '<h4>' . __('Top writer: entries') . '</h4>' .
+        '<p><label class="classic" for="topWriterPostsItems">' .
+        form::checkbox('topWriterPostsItems', 1, $pref['topWriterPostsItems']) . ' ' .
+        __('Show') . '</label></p>' .
+        '<p><label class="classic" for="topWriterPostsPeriod">' . __('Period:') . ' </label>' .
+        form::combo('topWriterPostsPeriod', topWriter::periods(), $pref['topWriterPostsPeriod']) . '</p>' .
+        '<p><label class="classic" for="topWriterPostsLimit">' . __('Limit:') . ' </label>' .
+        form::number('topWriterPostsLimit', ['min' => 1, 'max' => 20, 'default' => $pref['topWriterPostsLimit']]) . '</p>' .
+        '</div>' .
+
+        '<div class="fieldset">' .
+        '<h4>' . __('Top writer: comments') . '</h4>' .
+        '<p><label class="classic" for="topWriterCommentsItems">' .
+        form::checkbox('topWriterCommentsItems', 1, $pref['topWriterCommentsItems']) . ' ' .
+        __('Show') . '</label></p>' .
+        '<p><label class="classic" for="topWriterCommentsPeriod">' . __('Period:') . ' </label>' .
+        form::combo('topWriterCommentsPeriod', topWriter::periods(), $pref['topWriterCommentsPeriod']) . '</p>' .
+        '<p><label class="classic" for="topWriterCommentsLimit">' . __('Limit:') . ' </label>' .
+        form::number('topWriterCommentsLimit', ['min' => 1, 'max' => 20, 'default' => $pref['topWriterCommentsLimit']]) . '</p>' .
+        '</div>';
+    }
+
+    public static function adminAfterDashboardOptionsUpdate($user_id)
+    {
+        global $core;
+
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterPostsItems',
+            !empty($_POST['topWriterPostsItems']),
+            'boolean'
+        );
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterPostsPeriod',
+            (string) $_POST['topWriterPostsPeriod'],
+            'string'
+        );
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterPostsLimit',
+            (int) $_POST['topWriterPostsLimit'],
+            'integer'
+        );
+
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterCommentsItems',
+            !empty($_POST['topWriterCommentsItems']),
+            'boolean'
+        );
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterCommentsPeriod',
+            (string) $_POST['topWriterCommentsPeriod'],
+            'string'
+        );
+        $core->auth->user_prefs->dashboard->put(
+            'topWriterCommentsLimit',
+            (int) $_POST['topWriterCommentsLimit'],
+            'integer'
+        );
+    }
+
+    private static function setDefaultPref($core)
+    {
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterPostsItems')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterPostsItems',
+                false,
+                'boolean'
+            );
+        }
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterPostsPeriod')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterPostsPeriod',
+                'month',
+                'string'
+            );
+        }
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterPostsLimit')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterPostsLimit',
+                10,
+                'integer'
+            );
+        }
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterCommentsItems')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterCommentsItems',
+                false,
+                'boolean'
+            );
+        }
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterCommentsPeriod')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterCommentsPeriod',
+                'month',
+                'string'
+            );
+        }
+        if (!$core->auth->user_prefs->dashboard->prefExists('topWriterCommentsLimit')) {
+            $core->auth->user_prefs->dashboard->put(
+                'topWriterCommentsLimit',
+                10,
+                'integer'
+            );
+        }
+
+        return [
+            'topWriterPostsItems'     => $core->auth->user_prefs->dashboard->get('topWriterPostsItems'),
+            'topWriterPostsPeriod'    => $core->auth->user_prefs->dashboard->get('topWriterPostsPeriod'),
+            'topWriterPostsLimit'     => $core->auth->user_prefs->dashboard->get('topWriterPostsLimit') ?? 10,
+            'topWriterCommentsItems'  => $core->auth->user_prefs->dashboard->get('topWriterCommentsItems'),
+            'topWriterCommentsPeriod' => $core->auth->user_prefs->dashboard->get('topWriterCommentsPeriod'),
+            'topWriterCommentsLimit'  => $core->auth->user_prefs->dashboard->get('topWriterCommentsLimit') ?? 10
+        ];
+    }
+}
diff --git a/_define.php b/_define.php
index 655a843..a61645d 100644
--- a/_define.php
+++ b/_define.php
@@ -1,16 +1,15 @@
 <?php
 /**
  * @brief topWriter, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
@@ -28,4 +27,4 @@ $this->registerModule(
         'details'     => 'http://plugins.dotaddict.org/dc2/details/topWriter',
         'repository'  => 'https://raw.githubusercontent.com/JcDenis/topWriter/master/dcstore.xml'
     ]
-);
\ No newline at end of file
+);
diff --git a/_prepend.php b/_prepend.php
new file mode 100644
index 0000000..384aa68
--- /dev/null
+++ b/_prepend.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * @brief topWriter, a plugin for Dotclear 2
+ *
+ * @package Dotclear
+ * @subpackage Plugin
+ *
+ * @author Jean-Christian Denis, Pierre Van Glabeke
+ *
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
+if (!defined('DC_RC_PATH')) {
+    return;
+}
+
+$__autoload['topWriter'] = dirname(__FILE__) . '/inc/class.topwriter.php';
diff --git a/_public.php b/_public.php
index 3d7ac51..63fa027 100644
--- a/_public.php
+++ b/_public.php
@@ -1,18 +1,17 @@
 <?php
 /**
  * @brief topWriter, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
 
-require dirname(__FILE__) . '/_widgets.php';
\ No newline at end of file
+require dirname(__FILE__) . '/_widgets.php';
diff --git a/_widgets.php b/_widgets.php
index e79de13..e00554e 100644
--- a/_widgets.php
+++ b/_widgets.php
@@ -1,16 +1,15 @@
 <?php
 /**
  * @brief topWriter, a plugin for Dotclear 2
- * 
+ *
  * @package Dotclear
  * @subpackage Plugin
- * 
+ *
  * @author Jean-Christian Denis, Pierre Van Glabeke
- * 
+ *
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-
 if (!defined('DC_RC_PATH')) {
     return null;
 }
@@ -21,7 +20,7 @@ class topWriterWidget
 {
     public static function init($w)
     {
-    #Top comments widget
+        #Top comments widget
         $w
             ->create(
                 'topcom',
@@ -33,7 +32,7 @@ class topWriterWidget
             ->addTitle(__('Top comments'))
             ->setting(
                 'text',
-                __('Text:'),
+                __('Text:') . ' (%rank%, %author%, %count%)',
                 '%author% (%count%)',
                 'text'
             )
@@ -42,13 +41,7 @@ class topWriterWidget
                 __('Period:'),
                 'year',
                 'combo',
-                [
-                    __('day')           => 'day',
-                    __('week')      => 'week',
-                    __('month')     => 'month',
-                    __('year')      => 'year',
-                    __('from begining') => ''
-                ]
+                topWriter::periods()
             )
             ->setting(
                 'sort',
@@ -56,8 +49,8 @@ class topWriterWidget
                 'desc',
                 'combo',
                 [
-                    __('Ascending') => 'asc',
-                    __('Descending')    => 'desc'
+                    __('Ascending')  => 'asc',
+                    __('Descending') => 'desc'
                 ]
             )
             ->setting(
@@ -89,7 +82,7 @@ class topWriterWidget
             ->addTitle(__('Top entries'))
             ->setting(
                 'text',
-                __('Text:'),
+                __('Text:') . ' (%rank%, %author%, %count%)',
                 '%author% (%count%)',
                 'text'
             )
@@ -98,21 +91,16 @@ class topWriterWidget
                 __('Period:'),
                 'year',
                 'combo',
-                [
-                    __('day')           => 'day',
-                    __('week')      => 'week',
-                    __('month')     => 'month',
-                    __('year')      => 'year',
-                    __('from begining') => ''
-                ]
+                topWriter::periods()
             )
             ->setting(
                 'sort',
-                __('Sort:'),'desc',
+                __('Sort:'),
+                'desc',
                 'combo',
                 [
-                    __('Ascending') => 'asc',
-                    __('Descending')    => 'desc'
+                    __('Ascending')  => 'asc',
+                    __('Descending') => 'desc'
                 ]
             )
             ->setting(
@@ -131,85 +119,15 @@ class topWriterWidget
     {
         global $core;
 
-        if ($w->offline) {
+        if ($w->offline
+            || ($w->homeonly == 1 && !$core->url->isHome($core->url->type))
+            || ($w->homeonly == 2 && $core->url->isHome($core->url->type))
+        ) {
             return null;
         }
 
-        if (($w->homeonly == 1 && !$core->url->isHome($core->url->type)) 
-         || ($w->homeonly == 2 && $core->url->isHome($core->url->type))) {
-            return null;
-        }
-
-        $req =
-        'SELECT COUNT(*) AS count, comment_email ' .
-        "FROM " . $core->prefix . "post P,  " . $core->prefix . "comment C " .
-        'WHERE P.post_id=C.post_id ' .
-        "AND blog_id='" . $core->con->escape($core->blog->id) . "' " .
-        'AND post_status=1 AND comment_status=1 ' .
-        self::period('comment_dt', $w->period);
-
-        if ($w->exclude) {
-            $req .= 
-            'AND comment_email NOT IN (' .
-            ' SELECT U.user_email ' .
-            ' FROM ' . $core->prefix . 'user U' .
-            ' INNER JOIN ' . $core->prefix . 'post P ON P.user_id = U.user_id ' .
-            " WHERE blog_id='" . $core->con->escape($core->blog->id) . "' " .
-            ' GROUP BY U.user_email) ';
-        }
-
-        $req .=
-        'GROUP BY comment_email ' .
-        'ORDER BY count ' . ($w->sort == 'asc' ? 'ASC' : 'DESC') . ' ' .
-        $core->con->limit(abs((integer) $w->limit));
-
-        $rs = $core->con->select($req);
-
-        if ($rs->isEmpty()) {
-            return null;
-        }
-
-        $content = '';
-        $i = 0;
-        while($rs->fetch()) {
-            $user = $core->con->select(
-                "SELECT * FROM " . $core->prefix . "comment " .
-                "WHERE comment_email='" . $rs->comment_email . "' " .
-                'ORDER BY comment_dt DESC'
-            );
-
-            if (!$user->comment_author) {
-                continue;
-            }
-
-            $i++;
-            $rank = '<span class="topcomments-rank">' . $i . '</span>';
-
-            if ($user->comment_site) {
-                $author = '<a href="' . $user->comment_site . '" title="' .
-                    __('Author link') . '">' . $user->comment_author . '</a>';
-            } else {
-                $author = $user->comment_author;
-            }
-            $author = '<span class="topcomments-author">' . $author . '</span>';
-
-            if ($rs->count == 0) {
-                $count = __('no comments');
-            } else {
-                $count = sprintf(__('one comment', '%s comments', $rs->count), $rs->count);
-            }
-
-            $content .= sprintf(
-                '<li>%s</li>', 
-                str_replace(
-                    ['%rank%', '%author%', '%count%'],
-                    [$rank, $author, $count],
-                    $w->text
-                )
-            );
-        }
-
-        if ($i < 1) {
+        $lines = topWriter::comments($core, $w->period, $w->limit, $w->sort == 'desc', $w->exclude);
+        if (empty($lines)) {
             return null;
         }
 
@@ -218,7 +136,7 @@ class topWriterWidget
             'topcomments ' . $w->class,
             '',
             ($w->title ? $w->renderTitle(html::escapeHTML($w->title)) : '') .
-                sprintf('<ul>%s</ul>', $content)
+            sprintf('<ul>%s</ul>', implode('', self::lines($lines, 'comments', $w->text)))
         );
     }
 
@@ -226,80 +144,15 @@ class topWriterWidget
     {
         global $core;
 
-        if ($w->offline) {
+        if ($w->offline
+            || ($w->homeonly == 1 && !$core->url->isHome($core->url->type))
+            || ($w->homeonly == 2 && $core->url->isHome($core->url->type))
+        ) {
             return null;
         }
 
-        if (($w->homeonly == 1 && !$core->url->isHome($core->url->type)) 
-         || ($w->homeonly == 2 && $core->url->isHome($core->url->type))) {
-            return null;
-        }
-
-        $rs = $core->con->select(
-        'SELECT COUNT(*) AS count, U.user_id ' .
-        "FROM " . $core->prefix . "post P " .
-        'INNER JOIN ' . $core->prefix . 'user U ON U.user_id = P.user_id ' .
-        "WHERE blog_id='" . $core->con->escape($core->blog->id) . "' " .
-        'AND post_status=1 AND user_status=1 ' .
-        self::period('post_dt', $w->period) .
-        'GROUP BY U.user_id ' .
-        'ORDER BY count ' . ($w->sort == 'asc' ? 'ASC' : 'DESC') . ', U.user_id ASC ' .
-        $core->con->limit(abs((integer) $w->limit)));
-
-        if ($rs->isEmpty()) {
-            return null;
-        }
-
-        $content = '';
-        $i = 0;
-        while($rs->fetch()) {
-            $user = $core->con->select(
-                "SELECT * FROM " . $core->prefix . "user WHERE user_id='" . $rs->user_id . "' "
-            );
-
-            $author = dcUtils::getUserCN(
-                $user->user_id,
-                $user->user_name,
-                $user->user_firstname,
-                $user->user_displayname
-            );
-
-            if (empty($author)) {
-                continue;
-            }
-
-            $i++;
-            $rank = '<span class="topentries-rank">' . $i . '</span>';
-
-            $core->blog->settings->addNamespace('authormode');
-            if ($core->blog->settings->authormode->authormode_active) {
-                $author = '<a href="' .
-                    $core->blog->url . $core->url->getBase("author") . '/' . $user->user_id . '" ' .
-                    'title="' . __('Author posts') . '">' . $author . '</a>';
-            }
-            elseif ($user->user_url) {
-                $author = '<a href="' . $user->user_url . '" title="' .
-                    __('Author link') . '">' . $author . '</a>';
-            }
-            $author = '<span class="topentries-author">' . $author . '</span>';
-
-            if ($rs->count == 0) {
-                $count = __('no entries');
-            } else {
-                $count = sprintf(__('one entry', '%s entries', $rs->count), $rs->count);
-            }
-
-            $content .= sprintf(
-                '<li>%s</li>', 
-                str_replace(
-                    ['%rank%', '%author%', '%count%'],
-                    [$rank, $author, $count],
-                    $w->text
-                )
-            );
-        }
-
-        if ($i < 1) {
+        $lines = topWriter::posts($core, $w->period, $w->limit, $w->sort == 'desc');
+        if (empty($lines)) {
             return null;
         }
 
@@ -308,35 +161,26 @@ class topWriterWidget
             'topentries ' . $w->class,
             '',
             ($w->title ? $w->renderTitle(html::escapeHTML($w->title)) : '') .
-                sprintf('<ul>%s</ul>', $content)
+            sprintf('<ul>%s</ul>', implode('', self::lines($lines, 'posts', $w->text)))
         );
     }
 
-    private static function period($t, $p)
+    private static function lines($lines, $id, $text)
     {
-        $pat = '%Y-%m-%d %H:%M:%S';
-        switch($p) {
-            case 'day':
-                return
-                "AND $t > TIMESTAMP '" . dt::str($pat, time() - 3600*24) . "' ";
-            break;
-
-            case 'week':
-                return 
-                "AND $t > TIMESTAMP '" . dt::str($pat, time() - 3600*24*7) . "' ";
-            break;
-
-            case 'month':
-                return
-                "AND $t > TIMESTAMP '" . dt::str($pat, time() - 3600*24*30) . "' ";
-            break;
-
-            case 'year':
-                return
-                "AND $t > TIMESTAMP '" . dt::str($pat, time() - 3600*24*30*12) . "' ";
-            break;
+        $li = [];
+        foreach ($lines as $k => $line) {
+            $rank   = '<span class="top' . $id . '-rank">' . $k . '</span>';
+            $author = '<span class="top' . $id . '-author">' . (empty($line['author_link']) ? $line['author'] : $line['author_link']) . '</span>';
+            $li[]   = sprintf(
+                '<li>%s</li>',
+                str_replace(
+                    ['%rank%', '%author%', '%count%'],
+                    [$rank, $author, $line['count']],
+                    $text
+                )
+            );
         }
 
-        return '';
+        return $li;
     }
-}
\ No newline at end of file
+}
diff --git a/inc/class.topwriter.php b/inc/class.topwriter.php
new file mode 100644
index 0000000..1e8d676
--- /dev/null
+++ b/inc/class.topwriter.php
@@ -0,0 +1,189 @@
+<?php
+/**
+ * @brief topWriter, a plugin for Dotclear 2
+ *
+ * @package Dotclear
+ * @subpackage Plugin
+ *
+ * @author Jean-Christian Denis, Pierre Van Glabeke
+ *
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
+if (!defined('DC_RC_PATH')) {
+    return;
+}
+
+class topWriter
+{
+    public static function posts(dcCore $core, string $period, int $limit, bool $sort_desc = true)
+    {
+        $req = 'SELECT COUNT(*) AS count, U.user_id ' .
+            'FROM ' . $core->prefix . 'post P ' .
+            'INNER JOIN ' . $core->prefix . 'user U ON U.user_id = P.user_id ' .
+            "WHERE blog_id='" . $core->con->escape($core->blog->id) . "' " .
+            'AND post_status=1 AND user_status=1 ' .
+            self::period('post_dt', $period) .
+            'GROUP BY U.user_id ' .
+            'ORDER BY count ' . ($sort_desc ? 'DESC' : 'ASC') . ' , U.user_id ASC ' .
+            $core->con->limit(abs((int) $limit));
+
+        $rs = $core->con->select($req);
+        if ($rs->isEmpty()) {
+            return null;
+        }
+
+        $core->blog->settings->addNamespace('authormode');
+
+        $res = [];
+        $i   = 0;
+        while ($rs->fetch()) {
+            $user = $core->con->select(
+                'SELECT * FROM ' . $core->prefix . "user WHERE user_id='" . $rs->user_id . "' "
+            );
+            if ($user->isEmpty()) {
+                continue;
+            }
+
+            $author = dcUtils::getUserCN(
+                $user->user_id,
+                $user->user_name,
+                $user->user_firstname,
+                $user->user_displayname
+            );
+            if (empty($author)) {
+                continue;
+            }
+
+            $i++;
+            if ($core->blog->settings->authormode->authormode_active) {
+                $res[$i]['author_link'] = '<a href="' .
+                    $core->blog->url . $core->url->getBase('author') . '/' . $user->user_id . '" ' .
+                    'title="' . __('Author posts') . '">' . $author . '</a>';
+            } elseif ($user->user_url) {
+                $res[$i]['author_link'] = '<a href="' . $user->user_url . '" title="' .
+                    __('Author link') . '">' . $author . '</a>';
+            }
+            $res[$i]['author'] = $author;
+
+            if ($rs->count == 0) {
+                $res[$i]['count'] = __('no entries');
+            } else {
+                $res[$i]['count'] = sprintf(__('one entry', '%s entries', $rs->count), $rs->count);
+            }
+        }
+
+        if (!$i) {
+            return null;
+        }
+
+        return $res;
+    }
+
+    public static function comments(dcCore $core, string $period, int $limit, bool $sort_desc = true, $exclude = false)
+    {
+        $req = 'SELECT COUNT(*) AS count, comment_email ' .
+        'FROM ' . $core->prefix . 'post P,  ' . $core->prefix . 'comment C ' .
+        'WHERE P.post_id=C.post_id ' .
+        "AND blog_id='" . $core->con->escape($core->blog->id) . "' " .
+        'AND post_status=1 AND comment_status=1 ' .
+        self::period('comment_dt', $period);
+
+        if ($exclude) {
+            $req .= 'AND comment_email NOT IN (' .
+            ' SELECT U.user_email ' .
+            ' FROM ' . $core->prefix . 'user U' .
+            ' INNER JOIN ' . $core->prefix . 'post P ON P.user_id = U.user_id ' .
+            " WHERE blog_id='" . $core->con->escape($core->blog->id) . "' " .
+            ' GROUP BY U.user_email) ';
+        }
+
+        $req .= 'GROUP BY comment_email ' .
+        'ORDER BY count ' . ($sort_desc ? 'DESC' : 'ASC') . ' ' .
+        $core->con->limit(abs((int) $limit));
+
+        $rs = $core->con->select($req);
+        if ($rs->isEmpty()) {
+            return null;
+        }
+
+        $res = [];
+        $i   = 0;
+        while ($rs->fetch()) {
+            $user = $core->con->select(
+                'SELECT * FROM ' . $core->prefix . 'comment ' .
+                "WHERE comment_email='" . $rs->comment_email . "' " .
+                'ORDER BY comment_dt DESC'
+            );
+
+            if (!$user->comment_author) {
+                continue;
+            }
+
+            $i++;
+
+            if ($user->comment_site) {
+                $res[$i]['author_link'] = '<a href="' . $user->comment_site . '" title="' .
+                    __('Author link') . '">' . $user->comment_author . '</a>';
+            }
+            $res[$i]['author'] = $user->comment_author;
+
+            if ($rs->count == 0) {
+                $res[$i]['count'] = __('no comments');
+            } else {
+                $res[$i]['count'] = sprintf(__('one comment', '%s comments', $rs->count), $rs->count);
+            }
+        }
+
+        if (!$i) {
+            return null;
+        }
+
+        return $res;
+    }
+
+    private static function period(string $field, string $period): string
+    {
+        $pattern = '%Y-%m-%d %H:%M:%S';
+        $time    = 0;
+        switch ($period) {
+            case 'day':
+                $time = 3600 * 24;
+
+            break;
+
+            case 'week':
+                $time = 3600 * 24 * 7;
+
+            break;
+
+            case 'month':
+                $time = 3600 * 24 * 30;
+
+            break;
+
+            case 'year':
+                $time = 3600 * 24 * 30 * 12;
+
+            break;
+
+            default:
+                return '';
+
+            break;
+        }
+
+        return "AND $field > TIMESTAMP '" . dt::str($pattern, time() - $time) . "' ";
+    }
+
+    public static function periods()
+    {
+        return [
+            __('last day')      => 'day',
+            __('last week')     => 'week',
+            __('last month')    => 'month',
+            __('last year')     => 'year',
+            __('from begining') => ''
+        ];
+    }
+}
diff --git a/locales/fr/main.po b/locales/fr/main.po
index c37adcb..8bac772 100644
--- a/locales/fr/main.po
+++ b/locales/fr/main.po
@@ -1,69 +1,48 @@
-
 msgid ""
 msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Project-Id-Version: topWriter 0.8.1\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2021-09-25T16:39:29+00:00\n"
+"PO-Revision-Date: 2021-11-06T20:12:30+00:00\n"
 "Last-Translator: Jean-Christian Denis\n"
 "Language-Team: \n"
 "MIME-Version: 1.0\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
+msgid "Top writer: entries"
+msgstr "Top rédacteur : billets"
+
 msgid "Top writer: comments"
 msgstr "Top rédacteur : commentaires"
 
+msgid "Period:"
+msgstr "Période :"
+
+msgid "Limit:"
+msgstr "Limite :"
+
 msgid "List users who write more comments"
 msgstr "Liste les utilisateurs qui ont écrit le plus de commentaires"
 
 msgid "Top comments"
 msgstr "Top commentaires"
 
-msgid "Period:"
-msgstr "Période :"
-
-msgid "day"
-msgstr "jour"
-
-msgid "week"
-msgstr "semaine"
-
-msgid "month"
-msgstr "mois"
-
-msgid "year"
-msgstr "année"
-
-msgid "from begining"
-msgstr "depuis le début"
-
-msgid "Limit:"
-msgstr "Limite :"
-
 msgid "Exclude post writer from list"
 msgstr "Exclure de la liste les auteurs de billets"
 
-msgid "Top writer: entries"
-msgstr "Top rédacteur : billets"
-
 msgid "List users who write more posts"
 msgstr "Liste les utilisateurs qui ont écrit le plus de billets"
 
 msgid "Top entries"
 msgstr "Top billets"
 
-msgid "Author link"
-msgstr "Lien vers l'auteur"
-
-msgid "one comment"
-msgid_plural "%s comments"
-msgstr[0] "un commentaire"
-msgstr[1] "%s commentaires"
-
 msgid "Author posts"
 msgstr "Billets de l'auteur"
 
+msgid "Author link"
+msgstr "Lien vers l'auteur"
+
 msgid "no entries"
 msgstr "aucun billet"
 
@@ -72,6 +51,29 @@ msgid_plural "%s entries"
 msgstr[0] "une publication"
 msgstr[1] "%s publications"
 
+msgid "no comments"
+msgstr "aucun commentaire"
+
+msgid "one comment"
+msgid_plural "%s comments"
+msgstr[0] "un commentaire"
+msgstr[1] "%s commentaires"
+
+msgid "last day"
+msgstr "dernier jour"
+
+msgid "last week"
+msgstr "dernière semaine"
+
+msgid "last month"
+msgstr "dernier mois"
+
+msgid "last year"
+msgstr "dernière année"
+
+msgid "from begining"
+msgstr "depuis le début"
+
 msgid "Ranking of the most prolific writers and/or commentators"
 msgstr "Classement des plus prolifiques rédacteurs et/ou commentateurs"