add: add order apis for admin panel

core/apps/admin_panel/serializers/order.py

@@ -4,8 +4,18 @@ from core.apps.orders.models import Order
 
 
 class OrderSerializer(serializers.ModelSerializer):
+    user = serializers.SerializerMethodField(method_name='get_user')
+
     class Meta:
         model = Order
         fields = [
-            'id', 'order_number', 'total_price', 'user'
-        ]
+            'id', 'order_number', 'status', 'total_price', 'user'
+        ]
+
+    def get_user(self, obj):
+        return {
+            'id': obj.user.id,
+            'first_name': obj.user.first_name,
+            'last_name': obj.user.last_name,
+            'username': obj.user.username
+        }