diff --git a/hook.php b/hook.php
index 09ef3a1..475b964 100644
--- a/hook.php
+++ b/hook.php
@@ -225,9 +225,7 @@ function plugin_webapplications_uninstall()
                     "glpi_dropdowntranslations"];
 
     foreach ($tables_glpi as $table_glpi) {
-        $DB->doQuery("DELETE
-                  FROM `$table_glpi`
-                  WHERE `itemtype` LIKE 'PluginWebapplications%'");
+        $DB->delete($table_glpi, ['itemtype' => ['LIKE' => 'PluginWebapplications%']]);
     }
 
     //Delete rights associated with the plugin
diff --git a/inc/profile.class.php b/inc/profile.class.php
index bad23c2..ac1fb67 100644
--- a/inc/profile.class.php
+++ b/inc/profile.class.php
@@ -269,10 +269,10 @@ public static function migrateOneProfile($profiles_id)
             $current_rights = ProfileRight::getProfileRights($profiles_id, array_values($matching));
             foreach ($matching as $old => $new) {
                 if (!isset($current_rights[$old])) {
-                    $query = "UPDATE `glpi_profilerights` 
-                         SET `rights`='" . self::translateARight($profile_data[$old]) . "' 
-                         WHERE `name`='$new' AND `profiles_id`='$profiles_id'";
-                    $DB->doQuery($query);
+                    $DB->update('glpi_profilerights', ['rights' => self::translateARight($profile_data[$old])], [
+                        'name'        => $new,
+                        'profiles_id' => $profiles_id
+                    ]);
                 }
             }
         }
@@ -297,17 +297,22 @@ public static function initProfile()
         }
 
         //Migration old rights in new ones
-        foreach ($DB->request("SELECT `id` FROM `glpi_profiles`") as $prof) {
+        $it = $DB->request([
+            'SELECT' => ['id'],
+            'FROM' => 'glpi_profiles'
+        ]);
+        foreach ($it as $prof) {
             self::migrateOneProfile($prof['id']);
         }
-        foreach (
-            $DB->request(
-                "SELECT *
-                           FROM `glpi_profilerights` 
-                           WHERE `profiles_id`='" . $_SESSION['glpiactiveprofile']['id'] . "' 
-                              AND `name` LIKE '%plugin_webapplications%'"
-            ) as $prof
-        ) {
+
+        $it = $DB->request([
+            'FROM' => 'glpi_profilerights',
+            'WHERE' => [
+                'profiles_id' => $_SESSION['glpiactiveprofile']['id'],
+                'name' => ['LIKE', '%plugin_webapplications%']
+            ]
+        ]);
+        foreach ($it as $prof) {
             if (isset($_SESSION['glpiactiveprofile'])) {
                 $_SESSION['glpiactiveprofile'][$prof['name']] = $prof['rights'];
             }