model support

Author: mehedimi

src/Kitar/Dynamodb/Model/Model.php

@@ -171,6 +171,40 @@ public function save(array $options = [])
         return $saved;
     }
 
+    /**
+     * @inheritdoc
+     */
+    protected function incrementOrDecrement($column, $amount, $extra, $method)
+    {
+        if (! $this->exists) {
+            return $this->newQuery()
+                ->key($this->getKey())
+                ->{$method}($column, $amount, $extra);
+        }
+
+        if ($this->fireModelEvent('updating') === false) {
+            return false;
+        }
+
+        return tap($this->newQuery()
+            ->key($this->getKey())
+            ->{$method}($column, $amount, $extra), function () use($column, $amount, $method) {
+
+            $old = $this->{$column} ?? 0;
+            switch ($method) {
+                case 'increment':
+                    $old += $amount;
+                    break;
+                case 'decrement':
+                    $old -= $amount;
+                    break;
+            }
+
+            $this->setAttribute($column, $old);
+            $this->fireModelEvent('updated', false);
+        });
+    }
+
     /**
      * Perform a model update operation.
      *
@@ -326,10 +360,12 @@ public function __call($method, $parameters)
             "keyCondition",
             "keyConditionIn",
             "keyConditionBetween",
-            'increment',
-            'decrement'
         ];
 
+        if (in_array($method, ['increment', 'decrement'])) {
+            return $this->$method(...$parameters);
+        }
+
         if (! in_array($method, $allowedBuilderMethods)) {
             static::throwBadMethodCallException($method);
         }