Now can include WHERE clause on showAll() method

Core/Model.php

@@ -144,18 +144,9 @@ abstract class Model
             try {
                 $db = static::connectDB();
 
-                $result = $this->showAll('id', '=', $id);
-
-                foreach ($result as $post) {
-                    foreach ($post as $key => $val) {
-                        if (isset($args[$key])) {
-                            if ($args[$key] == $post[$key]) {
-                                return false;
-                            }
-                        }
-                    }
-                }
-
+                $result = $this->showAll([
+                    ['id', '=', $id]
+                ]);
 
                 $sql = "UPDATE {$table} SET {$fields} WHERE id = ?";