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Added instructions for ad-hoc tests in cds repl

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Daniel Hutzel
2025-07-16 14:08:25 +02:00
parent 7cd3a6d1e3
commit 4fc324c7fb
1 changed files with 16 additions and 9 deletions
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25
bookshop/server.js
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@@ -1,21 +1,28 @@
// //
// Quick and dirty implementation for cds.validate() using db-level constraints // Quick and dirty implementation for cds.validate() using db-level constraints
// Test in cds.repl like that:
// await cds.run (()=> INSERT.into (Books, { title:' ', author_ID:150 }) .then (cds.validate(Books)))
// //
const cds = require('@sap/cds') const cds = require('@sap/cds')
cds.on('served', ()=> { cds.on('served', ()=> {
const $ = cds.validate; cds.validate = async function (entity, key, ...columns) { const $ = cds.validate; cds.validate = function (entity, key, ...columns) {
if (!entity.is_entity) return $(...arguments) if (!entity.is_entity) return $(...arguments)
if (!key) return key => cds.validate(entity,key)
if (entity.constraints) entity = entity.constraints if (entity.constraints) entity = entity.constraints
if (key?.results) key = key.results[0].lastInsertRowid if (key.results) key = key.results[0].lastInsertRowid
const checks = await SELECT.one.from (entity, key, columns.length && columns)
const failed = {}; for (let c in checks) { return SELECT.one.from (entity, key, columns.length && columns) .then (checks => {
if (c in entity.keys) continue const failed = {}; for (let c in checks) {
if (c[0] == '_') continue if (c in entity.keys) continue
if (checks[c]) failed[c] = checks[c] if (c[0] == '_') continue
} if (checks[c]) failed[c] = checks[c]
if (Object.keys(failed).length) throw cds.error `Invalid input: ${failed}` }
if (Object.keys(failed).length) throw cds.error `Invalid input: ${failed}`
})
} }
}) })