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Benefiting from cds.context

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This commit is contained in:
Daniel
2020-12-17 16:39:01 +01:00
parent 86e5c429bd
commit 9e45ac2f0c
6 changed files with 20 additions and 26 deletions
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10
orders/srv/orders-service.js
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@@ -8,18 +8,14 @@ class OrdersService extends cds.ApplicationService {
this.before ('UPDATE', 'Orders', async function(req) {
const { ID, Items } = req.data
if (Items) for (let { product_ID, amount } of Items) {
const { amount:before } = await cds.tx(req).run (
SELECT.one.from (OrderItems, oi => oi.amount) .where ({up__ID:ID, product_ID})
)
if (amount != before) this.orderChanged (product_ID, amount-before)
const { amount:before } = await SELECT.one.from (OrderItems, oi => oi.amount) .where ({up__ID:ID, product_ID})
if (amount != before) await this.orderChanged (product_ID, amount-before)
}
})
this.before ('DELETE', 'Orders', async function(req) {
const { ID } = req.data
const Items = await cds.tx(req).run (
SELECT.from (OrderItems, oi => { oi.product_ID, oi.amount }) .where ({up__ID:ID})
)
const Items = await SELECT.from (OrderItems, oi => { oi.product_ID, oi.amount }) .where ({up__ID:ID})
if (Items) for (let it of Items) this.orderChanged (it.product_ID, -it.amount)
})