fix: reject all path expressions w/o foreign keys #806
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For a draft enabled model:
```
namespace my;
entity Books {
key ID : Integer;
title : String;
stock : Integer;
author : Association to Authors;
}
entity Authors {
key ID : Integer;
name : String;
alive : Boolean;
}
service CatalogService {
@odata.draft.enabled
@readonly entity Books as projection on my.Books;
@readonly entity Authors as projection on my.Authors;
}
```
`my.Books` will have a field:
```
"IsActiveEntity": {
"type": "cds.Boolean",
"key": true,
"default": {
"val": true
},
"@UI.Hidden": true
},
```
which is marked as virtual by the lean draft implementation.
This virtual key must not be part of the primary key matching
which is done for a path expression in a `UPDATE.where`:
https://github.com/cap-js/cds-dbs/blob/982b8b796da4b577c5641039d2036816209c0437/db-service/test/cqn4sql/UPDATE.test.js#L73-L97
TODO:
- [] test this
reject all path expressions which navigate along a managed association which does not provide foreign keys. In this case, we can't construct join conditions, where exists subqueries or correlated subqueries for expands.
patricebender
requested review from
danjoa,
johannes-vogel,
stewsk,
BobdenOs and
sjvans
as code owners
stewsk
reviewed
Sep 13, 2024
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reject all path expressions which navigate along a managed association which does not provide foreign keys. In this case, we can't construct join conditions, where exists subqueries or correlated subqueries for expands.