diff --git a/_admin.php b/_admin.php
index d40adb8..7c99124 100644
--- a/_admin.php
+++ b/_admin.php
@@ -14,44 +14,44 @@ if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
 
-require dirname(__FILE__) . '/_widgets.php';
+require __DIR__ . '/_widgets.php';
 
 # Admin menu
-if ($core->blog->settings->postwidgettext->postwidgettext_active) {
-    $_menu['Plugins']->addItem(
+if (dcCore::app()->blog->settings->postwidgettext->postwidgettext_active) {
+    dcCore::app()->menu[dcAdmin::MENU_PLUGINS]->addItem(
         __('Post widget text'),
-        $core->adminurl->get('admin.plugin.postWidgetText'),
+        dcCore::app()->adminurl->get('admin.plugin.postWidgetText'),
         dcPage::getPF('postWidgetText/icon.png'),
-        preg_match('/' . preg_quote($core->adminurl->get('admin.plugin.postWidgetText')) . '(&.*)?$/', $_SERVER['REQUEST_URI']),
-        $core->auth->check('contentadmin', $core->blog->id)
+        preg_match('/' . preg_quote(dcCore::app()->adminurl->get('admin.plugin.postWidgetText')) . '(&.*)?$/', $_SERVER['REQUEST_URI']),
+        dcCore::app()->auth->check(dcAuth::PERMISSION_CONTENT_ADMIN, dcCore::app()->blog->id)
     );
 
-    $core->addBehavior('adminDashboardFavorites', ['adminPostWidgetText', 'adminDashboardFavorites']);
+    dcCore::app()->addBehavior('adminDashboardFavoritesV2', ['adminPostWidgetText', 'adminDashboardFavorites']);
 }
 # Pref
-$core->addBehavior('adminFiltersLists', ['adminPostWidgetText', 'adminFiltersLists']);
-$core->addBehavior('adminBlogPreferencesForm', ['adminPostWidgetText', 'adminBlogPreferencesForm']);
-$core->addBehavior('adminBeforeBlogSettingsUpdate', ['adminPostWidgetText', 'adminBeforeBlogSettingsUpdate']);
+dcCore::app()->addBehavior('adminFiltersListsV2', ['adminPostWidgetText', 'adminFiltersLists']);
+dcCore::app()->addBehavior('adminBlogPreferencesFormV2', ['adminPostWidgetText', 'adminBlogPreferencesForm']);
+dcCore::app()->addBehavior('adminBeforeBlogSettingsUpdate', ['adminPostWidgetText', 'adminBeforeBlogSettingsUpdate']);
 
 # Post
-$core->addBehavior('adminPostHeaders', ['adminPostWidgetText', 'adminPostHeaders']);
-$core->addBehavior('adminPostFormItems', ['adminPostWidgetText', 'adminPostFormItems']);
-$core->addBehavior('adminAfterPostUpdate', ['adminPostWidgetText', 'adminAfterPostSave']);
-$core->addBehavior('adminAfterPostCreate', ['adminPostWidgetText', 'adminAfterPostSave']);
-$core->addBehavior('adminBeforePostDelete', ['adminPostWidgetText', 'adminBeforePostDelete']);
+dcCore::app()->addBehavior('adminPostHeaders', ['adminPostWidgetText', 'adminPostHeaders']);
+dcCore::app()->addBehavior('adminPostFormItems', ['adminPostWidgetText', 'adminPostFormItems']);
+dcCore::app()->addBehavior('adminAfterPostUpdate', ['adminPostWidgetText', 'adminAfterPostSave']);
+dcCore::app()->addBehavior('adminAfterPostCreate', ['adminPostWidgetText', 'adminAfterPostSave']);
+dcCore::app()->addBehavior('adminBeforePostDelete', ['adminPostWidgetText', 'adminBeforePostDelete']);
 
 # Plugin "pages"
-$core->addBehavior('adminPageHeaders', ['adminPostWidgetText', 'adminPostHeaders']);
-$core->addBehavior('adminPageFormItems', ['adminPostWidgetText', 'adminPostFormItems']);
-$core->addBehavior('adminAfterPageUpdate', ['adminPostWidgetText', 'adminAfterPostSave']);
-$core->addBehavior('adminAfterPageCreate', ['adminPostWidgetText', 'adminAfterPostSave']);
-$core->addBehavior('adminBeforePageDelete', ['adminPostWidgetText', 'adminBeforePostDelete']);
+dcCore::app()->addBehavior('adminPageHeaders', ['adminPostWidgetText', 'adminPostHeaders']);
+dcCore::app()->addBehavior('adminPageFormItems', ['adminPostWidgetText', 'adminPostFormItems']);
+dcCore::app()->addBehavior('adminAfterPageUpdate', ['adminPostWidgetText', 'adminAfterPostSave']);
+dcCore::app()->addBehavior('adminAfterPageCreate', ['adminPostWidgetText', 'adminAfterPostSave']);
+dcCore::app()->addBehavior('adminBeforePageDelete', ['adminPostWidgetText', 'adminBeforePostDelete']);
 
 # Plugin "importExport"
-if ($core->blog->settings->postwidgettext->postwidgettext_importexport_active) {
-    $core->addBehavior('exportFull', ['adminPostWidgetText', 'exportFull']);
-    $core->addBehavior('exportSingle', ['adminPostWidgetText', 'exportSingle']);
-    $core->addBehavior('importInit', ['adminPostWidgetText', 'importInit']);
-    $core->addBehavior('importSingle', ['adminPostWidgetText', 'importSingle']);
-    $core->addBehavior('importFull', ['adminPostWidgetText', 'importFull']);
+if (dcCore::app()->blog->settings->postwidgettext->postwidgettext_importexport_active) {
+    dcCore::app()->addBehavior('exportFull', ['adminPostWidgetText', 'exportFull']);
+    dcCore::app()->addBehavior('exportSingle', ['adminPostWidgetText', 'exportSingle']);
+    dcCore::app()->addBehavior('importInit', ['adminPostWidgetText', 'importInit']);
+    dcCore::app()->addBehavior('importSingle', ['adminPostWidgetText', 'importSingle']);
+    dcCore::app()->addBehavior('importFull', ['adminPostWidgetText', 'importFull']);
 }
diff --git a/_define.php b/_define.php
index 5cf8913..1e8dc01 100644
--- a/_define.php
+++ b/_define.php
@@ -18,10 +18,13 @@ $this->registerModule(
     'Post widget text',
     'Add a widget with a text related to an entry',
     'Jean-Christian Denis and Contributors',
-    '2021.11.06',
+    '2022.11.12',
     [
-        'requires'    => [['core', '2.20']],
-        'permissions' => 'usage,contentadmin',
+        'requires'    => [['core', '2.24']],
+        'permissions' => dcCore::app()->auth->makePermissions([
+            dcAuth::PERMISSION_USAGE,
+            dcAuth::PERMISSION_CONTENT_ADMIN,
+        ]),
         'type'        => 'plugin',
         'support'     => 'https://github.com/JcDenis/postWidgetText',
         'details'     => 'https://plugins.dotaddict.org/dc2/details/postWidgetText',
diff --git a/_install.php b/_install.php
index 55d7794..f647767 100644
--- a/_install.php
+++ b/_install.php
@@ -14,8 +14,8 @@ if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
 
-$new_version = $core->plugins->moduleInfo('postWidgetText', 'version');
-$old_version = $core->getVersion('postWidgetText');
+$new_version = dcCore::app()->plugins->moduleInfo('postWidgetText', 'version');
+$old_version = dcCore::app()->getVersion('postWidgetText');
 
 if (version_compare($old_version, $new_version, '>=')) {
     return;
@@ -24,7 +24,7 @@ if (version_compare($old_version, $new_version, '>=')) {
 try {
     # Table is the same for plugins
     # pollsFactory, postTask, postWidgetText
-    $s = new dbStruct($core->con, $core->prefix);
+    $s = new dbStruct(dcCore::app()->con, dcCore::app()->prefix);
     $s->post_option
         ->option_id('bigint', 0, false)
         ->post_id('bigint', 0, false)
@@ -41,12 +41,12 @@ try {
         ->index('idx_post_option_post', 'btree', 'post_id')
         ->index('idx_post_option_type', 'btree', 'option_type');
 
-    $si      = new dbStruct($core->con, $core->prefix);
+    $si      = new dbStruct(dcCore::app()->con, dcCore::app()->prefix);
     $changes = $si->synchronize($s);
 
     # Settings
-    $core->blog->settings->addNamespace('postwidgettext');
-    $core->blog->settings->postwidgettext->put(
+    dcCore::app()->blog->settings->addNamespace('postwidgettext');
+    dcCore::app()->blog->settings->postwidgettext->put(
         'postwidgettext_active',
         true,
         'boolean',
@@ -54,7 +54,7 @@ try {
         false,
         true
     );
-    $core->blog->settings->postwidgettext->put(
+    dcCore::app()->blog->settings->postwidgettext->put(
         'postwidgettext_importexport_active',
         true,
         'boolean',
@@ -64,18 +64,18 @@ try {
     );
 
     # Transfert records from old table to the new one
-    if ($core->getVersion('postWidgetText') !== null
-     && version_compare($core->getVersion('postWidgetText'), '0.5', '<')
+    if (dcCore::app()->getVersion('postWidgetText') !== null
+     && version_compare(dcCore::app()->getVersion('postWidgetText'), '0.5', '<')
     ) {
-        require_once dirname(__FILE__) . '/inc/patch.0.5.php';
+        require_once __DIR__ . '/inc/patch.0.5.php';
     }
 
     # Set module version
-    $core->setVersion('postWidgetText', $new_version);
+    dcCore::app()->setVersion('postWidgetText', $new_version);
 
     return true;
 } catch (Exception $e) {
-    $core->error->add($e->getMessage());
+    dcCore::app()->error->add($e->getMessage());
 }
 
 return false;
diff --git a/_widgets.php b/_widgets.php
index 907b1a2..8c1babc 100644
--- a/_widgets.php
+++ b/_widgets.php
@@ -14,9 +14,9 @@ if (!defined('DC_RC_PATH')) {
     return null;
 }
 
-$core->blog->settings->addNamespace('postwidgettext');
+dcCore::app()->blog->settings->addNamespace('postwidgettext');
 
-$core->addBehavior('initWidgets', ['postWidgetTextWidget', 'init']);
+dcCore::app()->addBehavior('initWidgets', ['postWidgetTextWidget', 'init']);
 
 /**
  * @ingroup DC_PLUGIN_POSTWIDGETTEXT
@@ -55,15 +55,13 @@ class postWidgetTextWidget
 
     public static function display($w)
     {
-        global $core, $_ctx;
-
         if ($w->offline) {
             return null;
         }
 
-        if (!$core->blog->settings->postwidgettext->postwidgettext_active
-            || !$_ctx->exists('posts')
-            || !$_ctx->posts->post_id
+        if (!dcCore::app()->blog->settings->postwidgettext->postwidgettext_active
+            || !dcCore::app()->ctx->exists('posts')
+            || !dcCore::app()->ctx->posts->post_id
         ) {
             return null;
         }
@@ -71,8 +69,8 @@ class postWidgetTextWidget
         $title   = $w->title ?: null;
         $content = '';
 
-        $pwt = new postWidgetText($core);
-        $rs  = $pwt->getWidgets(['post_id' => $_ctx->posts->post_id]);
+        $pwt = new postWidgetText();
+        $rs  = $pwt->getWidgets(['post_id' => dcCore::app()->ctx->posts->post_id]);
 
         if ($rs->isEmpty()) {
             return null;
@@ -85,7 +83,7 @@ class postWidgetTextWidget
             $content = $rs->option_content_xhtml;
         }
         if ('' == $content && $w->excerpt) {
-            $content = $_ctx->posts->post_excerpt_xhtml;
+            $content = dcCore::app()->ctx->posts->post_excerpt_xhtml;
         }
 
         return $w->renderDiv(
diff --git a/inc/class.postwidgettext.php b/inc/class.postwidgettext.php
index 72da245..7be8b31 100644
--- a/inc/class.postwidgettext.php
+++ b/inc/class.postwidgettext.php
@@ -21,17 +21,15 @@ if (!defined('DC_RC_PATH')) {
  */
 class postWidgetText
 {
-    public $core;
     public $con;
     private $table;
     private $blog;
 
-    public function __construct($core)
+    public function __construct()
     {
-        $this->core  = & $core;
-        $this->con   = & $this->core->con;
-        $this->table = $this->core->prefix . 'post_option';
-        $this->blog  = $core->con->escape($core->blog->id);
+        $this->con   = dcCore::app()->con;
+        $this->table = dcCore::app()->prefix . 'post_option';
+        $this->blog  = dcCore::app()->con->escape(dcCore::app()->blog->id);
     }
 
     public function tableName()
@@ -56,7 +54,7 @@ class postWidgetText
 
     public function triggerBlog()
     {
-        $this->core->blog->triggerBlog();
+        dcCore::app()->blog->triggerBlog();
     }
 
     public function getWidgets($params, $count_only = false)
@@ -77,7 +75,7 @@ class postWidgetText
         if (!isset($params['from'])) {
             $params['from'] = '';
         }
-        $params['from'] .= 'LEFT JOIN ' . $this->table . ' W ON P.post_id=W.post_id ';
+        $params['join'] = 'LEFT JOIN ' . $this->table . ' W ON P.post_id=W.post_id ';
 
         if (!isset($params['sql'])) {
             $params['sql'] = '';
@@ -92,12 +90,15 @@ class postWidgetText
             $params['post_type'] = '';
         }
 
-        return $this->core->blog->getPosts($params, $count_only);
+        return dcCore::app()->blog->getPosts($params, $count_only);
     }
 
     public function addWidget($cur)
     {
-        if (!$this->core->auth->check('usage,contentadmin', $this->blog)) {
+        if (!dcCore::app()->auth->check(dcCore::app()->auth->makePermissions([
+            dcAuth::PERMISSION_USAGE,
+            dcAuth::PERMISSION_CONTENT_ADMIN,
+        ]), $this->blog)) {
             throw new Exception(__('You are not allowed to create an entry text widget'));
         }
         if ($cur->post_id == '') {
@@ -135,7 +136,10 @@ class postWidgetText
 
     public function updWidget($id, &$cur)
     {
-        if (!$this->core->auth->check('usage,contentadmin', $this->blog)) {
+        if (!dcCore::app()->auth->check(dcCore::app()->auth->makePermissions([
+            dcAuth::PERMISSION_USAGE,
+            dcAuth::PERMISSION_CONTENT_ADMIN,
+        ]), $this->blog)) {
             throw new Exception(__('You are not allowed to update entries text widget'));
         }
 
@@ -149,9 +153,9 @@ class postWidgetText
 
         $cur->option_upddt = date('Y-m-d H:i:s');
 
-        if (!$this->core->auth->check('contentadmin', $this->blog)) {
+        if (!dcCore::app()->auth->check(dcAuth::PERMISSION_CONTENT_ADMIN, $this->blog)) {
             $params['option_id']  = $id;
-            $params['user_id']    = $this->con->escape($this->core->auth->userID());
+            $params['user_id']    = $this->con->escape(dcCore::app()->auth->userID());
             $params['no_content'] = true;
             $params['limit']      = 1;
 
@@ -168,7 +172,10 @@ class postWidgetText
 
     public function delWidget($id, $type = 'postwidgettext')
     {
-        if (!$this->core->auth->check('delete,contentadmin', $this->blog)) {
+        if (!dcCore::app()->auth->check(dcCore::app()->auth->makePermissions([
+            dcAuth::PERMISSION_DELETE,
+            dcAuth::PERMISSION_CONTENT_ADMIN,
+        ]), $this->blog)) {
             throw new Exception(__('You are not allowed to delete entries text widget'));
         }
 
@@ -178,9 +185,9 @@ class postWidgetText
             throw new Exception(__('No such ID'));
         }
 
-        if (!$this->core->auth->check('contentadmin', $this->blog)) {
+        if (!dcCore::app()->auth->check(dcAuth::PERMISSION_CONTENT_ADMIN, $this->blog)) {
             $params['option_id']  = $id;
-            $params['user_id']    = $this->con->escape($this->core->auth->userID());
+            $params['user_id']    = $this->con->escape(dcCore::app()->auth->userID());
             $params['no_content'] = true;
             $params['limit']      = 1;
 
@@ -220,16 +227,16 @@ class postWidgetText
     public function setWidgetContent($option_id, $format, $lang, &$content, &$content_xhtml)
     {
         if ($format == 'wiki') {
-            $this->core->initWikiPost();
-            $this->core->wiki2xhtml->setOpt('note_prefix', 'wnote-' . $option_id);
+            dcCore::app()->initWikiPost();
+            dcCore::app()->wiki2xhtml->setOpt('note_prefix', 'wnote-' . $option_id);
             if (strpos($lang, 'fr') === 0) {
-                $this->core->wiki2xhtml->setOpt('active_fr_syntax', 1);
+                dcCore::app()->wiki2xhtml->setOpt('active_fr_syntax', 1);
             }
         }
 
         if ($content) {
-            $content_xhtml = $this->core->callFormater($format, $content);
-            $content_xhtml = $this->core->HTMLfilter($content_xhtml);
+            $content_xhtml = dcCore::app()->callFormater($format, $content);
+            $content_xhtml = dcCore::app()->HTMLfilter($content_xhtml);
         } else {
             $content_xhtml = '';
         }
@@ -237,7 +244,7 @@ class postWidgetText
         $excerpt = $excerpt_xhtml = '';
 
         # --BEHAVIOR-- coreAfterPostContentFormat
-        $this->core->callBehavior('coreAfterPostContentFormat', [
+        dcCore::app()->callBehavior('coreAfterPostContentFormat', [
             'excerpt'       => &$excerpt,
             'content'       => &$content,
             'excerpt_xhtml' => &$excerpt_xhtml,
diff --git a/inc/lib.pwt.admin.php b/inc/lib.pwt.admin.php
index b9e2d71..f1101f6 100644
--- a/inc/lib.pwt.admin.php
+++ b/inc/lib.pwt.admin.php
@@ -27,7 +27,7 @@ class adminPostWidgetText
         ];
     }
 
-    public static function adminFiltersLists(dcCore $core, $sorts)
+    public static function adminFiltersLists($sorts)
     {
         $sorts['pwt'] = [
             __('Post widget text'),
@@ -38,7 +38,7 @@ class adminPostWidgetText
         ];
     }
 
-    public static function adminBlogPreferencesForm(dcCore $core, dcSettings $blog_settings)
+    public static function adminBlogPreferencesForm(dcSettings $blog_settings)
     {
         echo '
         <div class="fieldset">
@@ -65,14 +65,14 @@ class adminPostWidgetText
         $blog_settings->postwidgettext->put('postwidgettext_importexport_active', !empty($_POST['importexport_active']));
     }
 
-    public static function adminDashboardFavorites(dcCore $core, $favs)
+    public static function adminDashboardFavorites(dcFavorites $favs)
     {
         $favs->register('postWidgetText', [
             'title'       => __('Post widget text'),
-            'url'         => $core->adminurl->get('admin.plugin.postWidgetText'),
+            'url'         => dcCore::app()->adminurl->get('admin.plugin.postWidgetText'),
             'small-icon'  => dcPage::getPF('postWidgetText/icon.png'),
             'large-icon'  => dcPage::getPF('postWidgetText/icon-big.png'),
-            'permissions' => $core->auth->check('usage,contentadmin', $core->blog->id),
+            'permissions' => dcCore::app()->auth->check('usage,contentadmin', dcCore::app()->blog->id),
             'active_cb'   => ['adminPostWidgetText', 'adminDashboardFavoritesActive']
         ]);
     }
@@ -92,11 +92,10 @@ class adminPostWidgetText
 
     public static function adminPostHeaders()
     {
-        global $core;
-        $editor = $core->auth->getOption('editor');
+        $editor = dcCore::app()->auth->getOption('editor');
 
         return
-            $core->callBehavior('adminPostEditor', $editor['xhtml'], 'pwt', ['#post_wtext'], 'xhtml') .
+            dcCore::app()->callBehavior('adminPostEditor', $editor['xhtml'], 'pwt', ['#post_wtext'], 'xhtml') .
             dcPage::jsLoad(dcPage::getPF('postWidgetText/js/post.js'));
     }
 
@@ -110,7 +109,7 @@ class adminPostWidgetText
         if ($post) {
             $post_id = (int) $post->post_id;
 
-            $pwt = new postWidgetText($GLOBALS['core']);
+            $pwt = new postWidgetText();
             $w   = $pwt->getWidgets(['post_id' => $post_id]);
 
             # Existing widget
@@ -145,7 +144,7 @@ class adminPostWidgetText
         $content = $_POST['post_wtext']  ?? '';
 
         # Object
-        $pwt = new postWidgetText($GLOBALS['core']);
+        $pwt = new postWidgetText();
 
         # Get existing widget
         $w = $pwt->getWidgets(['post_id' => $post_id]);
@@ -181,7 +180,7 @@ class adminPostWidgetText
         $post_id = (int) $post_id;
 
         # Object
-        $pwt = new postWidgetText($GLOBALS['core']);
+        $pwt = new postWidgetText();
 
         # Get existing widget
         $w = $pwt->getWidgets(['post_id' => $post_id]);
@@ -198,8 +197,8 @@ class adminPostWidgetText
             'postwidgettext',
             'SELECT option_type, option_content, ' .
             'option_content_xhtml, W.post_id ' .
-            'FROM ' . $core->prefix . 'post_option W ' .
-            'LEFT JOIN ' . $core->prefix . 'post P ' .
+            'FROM ' . dcCore::app()->prefix . 'post_option W ' .
+            'LEFT JOIN ' . dcCore::app()->prefix . 'post P ' .
             'ON P.post_id = W.post_id ' .
             "WHERE P.blog_id = '" . $blog_id . "' " .
             "AND W.option_type = 'postwidgettext' "
@@ -212,8 +211,8 @@ class adminPostWidgetText
             'postwidgettext',
             'SELECT option_type, option_content, ' .
             'option_content_xhtml, W.post_id ' .
-            'FROM ' . $core->prefix . 'post_option W ' .
-            'LEFT JOIN ' . $core->prefix . 'post P ' .
+            'FROM ' . dcCore::app()->prefix . 'post_option W ' .
+            'LEFT JOIN ' . dcCore::app()->prefix . 'post P ' .
             'ON P.post_id = W.post_id ' .
             "WHERE W.option_type = 'postwidgettext' "
         );
@@ -221,10 +220,10 @@ class adminPostWidgetText
 
     public static function importInit($bk, dcCore $core)
     {
-        $bk->cur_postwidgettext = $core->con->openCursor(
-            $core->prefix . 'post_option'
+        $bk->cur_postwidgettext = dcCore::app()->con->openCursor(
+            dcCore::app()->prefix . 'post_option'
         );
-        $bk->postwidgettext = new postWidgetText($core);
+        $bk->postwidgettext = new postWidgetText();
     }
 
     public static function importSingle($line, $bk, dcCore $core)
diff --git a/inc/lib.pwt.list.php b/inc/lib.pwt.list.php
index a378bdf..a4a2bc1 100644
--- a/inc/lib.pwt.list.php
+++ b/inc/lib.pwt.list.php
@@ -71,7 +71,7 @@ class listPostWidgetText extends adminGenericList
                 !$this->rs->isEditable()
             ) . '</td>' .
             '<td class="maximal"><a href="' .
-                $this->core->getPostAdminURL(
+                dcCore::app()->getPostAdminURL(
                     $this->rs->post_type,
                     $this->rs->post_id
                 ) . '#post-wtext-form">' .
diff --git a/inc/patch.0.5.php b/inc/patch.0.5.php
index d8cc958..e8954ac 100644
--- a/inc/patch.0.5.php
+++ b/inc/patch.0.5.php
@@ -10,18 +10,18 @@
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-$records = $core->con->select(
-    'SELECT W.*, P.post_lang, P.post_format FROM ' . $core->prefix . 'post_wtext W ' .
-    'LEFT JOIN ' . $core->prefix . 'post P ON P.post_id=W.post_id '
+$records = dcCore::app()->con->select(
+    'SELECT W.*, P.post_lang, P.post_format FROM ' . dcCore::app()->prefix . 'post_wtext W ' .
+    'LEFT JOIN ' . dcCore::app()->prefix . 'post P ON P.post_id=W.post_id '
 );
 if (!$records->isEmpty()) {
-    $cur = $core->con->openCursor($core->prefix . 'post_option');
+    $cur = dcCore::app()->con->openCursor(dcCore::app()->prefix . 'post_option');
     while ($records->fetch()) {
-        $core->con->writeLock($core->prefix . 'post_option');
+        dcCore::app()->con->writeLock(dcCore::app()->prefix . 'post_option');
 
         try {
-            $id = $core->con->select(
-                'SELECT MAX(option_id) FROM ' . $core->prefix . 'post_option'
+            $id = dcCore::app()->con->select(
+                'SELECT MAX(option_id) FROM ' . dcCore::app()->prefix . 'post_option'
             )->f(0) + 1;
 
             $cur->clean();
@@ -38,9 +38,9 @@ if (!$records->isEmpty()) {
             $cur->option_content_xhtml = $records->wtext_content_xhtml;
 
             $cur->insert();
-            $core->con->unlock();
+            dcCore::app()->con->unlock();
         } catch (Exception $e) {
-            $core->con->unlock();
+            dcCore::app()->con->unlock();
 
             throw $e;
         }
diff --git a/index.php b/index.php
index 0c6ddec..0a8d0cb 100644
--- a/index.php
+++ b/index.php
@@ -14,9 +14,12 @@ if (!defined('DC_CONTEXT_ADMIN')) {
     return null;
 }
 
-dcPage::check('usage,contentadmin');
+dcPage::check(dcCore::app()->auth->makePermissions([
+            dcAuth::PERMISSION_USAGE,
+            dcAuth::PERMISSION_CONTENT_ADMIN,
+        ]));
 
-$pwt = new postWidgetText($core);
+$pwt = new postWidgetText();
 
 # Delete widgets
 if (!empty($_POST['save']) && !empty($_POST['widgets'])) {
@@ -26,21 +29,21 @@ if (!empty($_POST['save']) && !empty($_POST['widgets'])) {
             $pwt->delWidget($id);
         }
 
-        dcPage::addSuccessNotice(
+        dcAdminNotices::addSuccessNotice(
             __('Posts widgets successfully delete.')
         );
         if (!empty($_POST['redir'])) {
             http::redirect($_POST['redir']);
         } else {
-            $core->adminurl->redirect('admin.plugin.postWidgetText');
+            dcCore::app()->adminurl->redirect('admin.plugin.postWidgetText');
         }
     } catch (Exception $e) {
-        $core->error->add($e->getMessage());
+        dcCore::app()->error->add($e->getMessage());
     }
 }
 
 # filters
-$filter = new adminGenericFilter($core, 'pwt');
+$filter = new adminGenericFilter(dcCore::app(), 'pwt');
 $filter->add(dcAdminFilters::getPageFilter());
 $params = $filter->params();
 
@@ -48,16 +51,16 @@ $params = $filter->params();
 try {
     $posts      = $pwt->getWidgets($params);
     $counter    = $pwt->getWidgets($params, true);
-    $posts_list = new listPostWidgetText($core, $posts, $counter->f(0));
+    $posts_list = new listPostWidgetText(dcCore::app(), $posts, $counter->f(0));
 } catch (Exception $e) {
-    $core->error->add($e->getMessage());
+    dcCore::app()->error->add($e->getMessage());
 }
 
 # Display
 echo '
 <html><head><title>' . __('Post widget text') . '</title>' .
 dcPage::jsLoad(dcPage::getPF('postWidgetText/js/index.js')) .
-$filter->js($core->adminurl->get('admin.plugin.postWidgetText')) . '
+$filter->js(dcCore::app()->adminurl->get('admin.plugin.postWidgetText')) . '
 </head>
 <body>' .
 
@@ -72,14 +75,14 @@ $filter->display('admin.plugin.postWidgetText', form::hidden('p', 'postWidgetTex
 $posts_list->display(
     $filter->page,
     $filter->nb,
-    '<form action="' . $core->adminurl->get('admin.plugin.postWidgetText') . '" method="post" id="form-entries">' .
+    '<form action="' . dcCore::app()->adminurl->get('admin.plugin.postWidgetText') . '" method="post" id="form-entries">' .
     '%s' .
     '<div class="two-cols">' .
     '<p class="col checkboxes-helpers"></p>' .
     '<p class="col right">' .
     '<input id="do-action" type="submit" name="save" value="' . __('Delete selected widgets') . '" /></p>' .
-    $core->adminurl->getHiddenFormFields('admin.plugin.postWidgetText', array_merge(['p' => 'postWidgetText'], $filter->values(true))) .
-    $core->formNonce() .
+    dcCore::app()->adminurl->getHiddenFormFields('admin.plugin.postWidgetText', array_merge(['p' => 'postWidgetText'], $filter->values(true))) .
+    dcCore::app()->formNonce() .
     '</div>' .
     '</form>'
 );