Como estructuro mi firebase

[Juan_Eduardo_Brennan]

Necesito con firebase realtime database hacer una estructura de pedidos así...

Numero de pedido 001
- Producto1
- Producto2
- Producto3

Numero de pedido 002
- Producto1
- Producto2

etc.

Como deberia plantearla al momento de guardar los datos porque he intentado distintas formas y no lo he logrado...

[TIMAI2]

What have you tried so far (show your relevant blocks) ?

Your data structure appears very simplistic for an "order". What about price/quantity/customer details etc. ?

[Juan_Eduardo_Brennan]

The Order only have Product number, is a practice but i cant make this.

I make Order with number Ej. 0001 (OK)
When I make the products of this Order not know howto be save this data.

Ej. productcs to Order 0001

1234
4321
5678
8765
A456
Z341

etc.
My block only save the Order without problem.

[TIMAI2]

@Juan_Eduardo_Brennan

I make Order with number Ej. 0001 (OK)
When I make the products of this Order not know howto be save this data.

Ej. productcs to Order 0001

I do not understand this.....

[Juan_Eduardo_Brennan]

This is my bd result...
In screen1 save Order Num 0001 0002
In screen2 save Items Num 1 aaaaa 2 ddddd etc.

Howto see in listview the items for this order in the screen2?

The block screen1 is...

The block screen2 is...

Understand?

[Juan_Eduardo_Brennan]

I solution add ITEM and number de item with item data and save how many item exist in the order.