数组属性上的 OData 过滤器以返回空数组或数组

Question

I have a JSON object similar to this one:

{
  "customers": [
    {
      "id": 1,
      "name": "bob",
      "orders": [{"id": 1, "customerId": 1, "itemId": 6}]
    },
    {
      "id": 2,
      "name": "jane",
      "orders": [{"id": 2, "customerId": 2, "itemId": 7}]
    }
  ]
}

I'd like to query it like....

...odata/customers?$expand=orders&$filter=orders/any(order: order/itemId eq 6)

...and get...

{
  "customers": [
    {
      "id": 1,
      "name": "bob",
      "orders": [{"id": 1, "customerId": 1, "itemId": 6}]
    },
    {
      "id": 2,
      "name": "jane",
      "orders": []
    }
  ]
}

but what I get is...

{
  "customers": [
    {
      "id": 1,
      "name": "bob",
      "orders": [{"id": 1, "customerId": 1, "itemId": 6}]
    }
  ]
}

I want to get all the customers and I only want the filter to apply to the "orders".

What can I do to get this result?

Answer 1

Just got the same problem! Solved by filtering my expand by the same condition in any().

applications?$expand=accounts($filter=idUser eq 5)&$filter=accounts/any(account: account/idUser eq 5)

Maybe to late but hope it will help someone else ;)