Create DbModel.php and implement save

Rename Register.php into User.php and extend from DbModel

Author: thecodeholic

controllers/SiteController.php

@@ -10,7 +10,7 @@
 
 use app\core\Controller;
 use app\core\Request;
-use app\models\Register;
+use app\models\User;
 
 /**
  * Class SiteController
@@ -35,10 +35,10 @@ public function login()
 
     public function register(Request $request)
     {
-        $registerModel = new Register();
+        $registerModel = new User();
         if ($request->getMethod() === 'post') {
             $registerModel->loadData($request->getBody());
-            if ($registerModel->validate() && $registerModel->register()) {
+            if ($registerModel->validate() && $registerModel->save()) {
                 return 'Show success page';
             }
 

core/DbModel.php

@@ -0,0 +1,46 @@
+<?php
+/**
+ * User: TheCodeholic
+ * Date: 7/10/2020
+ * Time: 9:19 AM
+ */
+
+namespace app\core;
+
+
+/**
+ * Class DbModel
+ *
+ * @author  Zura Sekhniashvili <[email protected]>
+ * @package app\core
+ */
+abstract class DbModel extends Model
+{
+    abstract public static function tableName(): string;
+
+    abstract public function attributes(): array;
+
+    public function primaryKey(): string
+    {
+        return 'id';
+    }
+
+    public function save()
+    {
+        $tableName = $this->tableName();
+        $attributes = $this->attributes();
+        $params = array_map(fn($attr) => ":$attr", $attributes);
+        $statement = $this->prepare("INSERT INTO $tableName (" . implode(",", $attributes) . ") 
+                VALUES (" . implode(",", $params) . ")");
+        foreach ($attributes as $attribute) {
+            $statement->bindValue(":$attribute", $this->{$attribute});
+        }
+        $statement->execute();
+        return true;
+    }
+
+    public function prepare($sql): \PDOStatement
+    {
+        return Application::$app->db->pdo->prepare($sql);
+    }
+}

models/Register.php renamed to models/User.php

@@ -8,6 +8,7 @@
 namespace app\models;
 
 
+use app\core\DbModel;
 use app\core\Model;
 
 /**
@@ -16,14 +17,24 @@
  * @author  Zura Sekhniashvili <[email protected]>
  * @package app\models
  */
-class Register extends Model
+class User extends DbModel
 {
     public string $firstname = '';
     public string $lastname = '';
     public string $email = '';
     public string $password = '';
     public string $passwordConfirm = '';
 
+    public static function tableName(): string
+    {
+        return 'users';
+    }
+
+    public function attributes(): array
+    {
+        return ['firstname', 'lastname', 'email', 'password'];
+    }
+
     public function rules()
     {
         return [