update

inc/Hura8/System/Controller/ViewHistoryController.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Hura8\System\Controller;
+
+
+use Hura8\System\Model\WebUserModel;
+
+class ViewHistoryController
+{
+    protected $history = []; //type => [id1, id2]
+
+    protected  $objWebUserModel;
+
+    public function __construct()
+    {
+        $this->objWebUserModel = new WebUserModel(WebUserController::getUserId());
+    }
+
+
+    public function addHistory($item_type, $item_id) {
+        $current_list = $this->getHistory($item_type);
+
+        // if exist, remove it
+        $search_key = array_search($item_id, $current_list, true);
+        if($search_key !== false) {
+            array_splice($current_list, $search_key, 1);
+        }
+
+        // add to front
+        array_unshift($current_list, $item_id);
+
+        $this->history[$item_type] = $current_list;
+
+        // save to db
+        $this->objWebUserModel->setValue("view-history", $this->history);
+    }
+
+
+    public function getHistory($item_type) {
+        $history = $this->objWebUserModel->getValue("view-history");
+        return (isset($history[$item_type])) ? $history[$item_type] : [];
+    }
+
+}