Fix(Model): add missing purge action (#549)

* Fix(Model): add missing purge action

* adapt changelog

Author: stonebuzz

CHANGELOG.md

@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+- Fix missing `purge` action
+
+### Fixed
+
 - Fix user fields nullability to prevent SQL errors during injection
 - Remove groups as import link field
 - Fix `clean` function

front/model.form.php

@@ -63,6 +63,11 @@
     $specific_model = PluginDatainjectionModel::getInstance('csv');
     $specific_model->saveFields($_POST);
     Html::back();
+} elseif (isset($_POST["purge"])) {
+    $model->check($_POST['id'], PURGE);
+    $model->delete($_POST, true);
+
+    $model->redirectToList();
 } elseif (isset($_POST["validate"])) {
     /* update order */
     $model->check($_POST['id'], UPDATE);