Create database connection using configuration then do a test

Core/Model.php

@@ -0,0 +1,64 @@
+<?php
+namespace Core;
+
+use App\Config;
+
+class Model
+{
+    protected static $dsn;
+
+    protected static function connectDB()
+    {
+        static $conn = null;
+
+        if (!$conn) {
+            try {
+                $dsn = 'mysql:host='.Config::DB_HOST.';dbname='.Config::DB_DB;
+                $conn = new \PDO($dsn, Config::DB_UNAME, Config::DB_PWD);
+
+                $conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+            } catch (PDOException $e) {
+                echo $e->getMessage();
+            }
+        }
+
+        return $conn;
+    }
+
+    public function createTable()
+    {
+        $sql = "CREATE TABLE IF NOT EXISTS pengumuman (
+        	id			int(3)			NOT NULL	AUTO_INCREMENT,
+        	category	int(3)        	NOT NULL,
+        	created_at	timestamp		NOT NULL	DEFAULT	CURRENT_TIMESTAMP,
+            expire_at   timestamp       NOT NULL,
+            creator     int(3)          NOT NULL,
+            edited_at   timestamp,
+            editor      int(3),
+            content     varchar(255)    NOT NULL,
+
+        	PRIMARY KEY (id)
+        ) ENGINE=InnoDB	DEFAULT CHARSET=utf8;";
+
+        $db = static::connectDB();
+        $query = $db->prepare($sql);
+
+        if ($query->execute()) {
+            return true;
+        }
+        return false;
+    }
+
+    public function dropTable()
+    {
+        $sql = "DROP TABLE IF EXISTS pengumuman";
+
+        $db = static::connectDB();
+        $query = $db->prepare($sql);
+
+        if ($query->execute()) {
+            return true;
+        }
+        return false;
+    }
+}