7b92463394
* Remove OData v2 show case: Genres TreeView * Refactored bookstore and fiori services: consolidate routing and remove deprecated files * Add Jest configuration file with silent mode enabled * Refactor test files: streamline imports and remove redundant code * Change price field type to Price for better clarity and precision * Example for separation of concerns: access-control.cds
60 lines
2.3 KiB
JavaScript
60 lines
2.3 KiB
JavaScript
const cds = require ('@sap/cds')
|
|
|
|
// Add routes to UIs from imported packages
|
|
cds.once ('bootstrap', require('../app/routes'))
|
|
|
|
// Mashing up bookshop services with required services...
|
|
cds.once ('served', async ()=>{ // called by server.js
|
|
|
|
const CatalogService = await cds.connect.to ('CatalogService')
|
|
const ReviewsService = await cds.connect.to ('ReviewsService')
|
|
const OrdersService = await cds.connect.to ('OrdersService')
|
|
const db = await cds.connect.to ('db')
|
|
|
|
// reflect entity definitions used below...
|
|
const { Books } = db.entities ('sap.capire.bookshop')
|
|
|
|
//
|
|
// Delegate requests to read reviews to the ReviewsService
|
|
// Note: prepend is neccessary to intercept generic default handler
|
|
//
|
|
CatalogService.prepend (srv => srv.on ('READ', 'Books/reviews', (req) => {
|
|
console.debug ('> delegating request to ReviewsService') // eslint-disable-line no-console
|
|
const [id] = req.params, { columns, limit } = req.query.SELECT
|
|
return ReviewsService.read ('Reviews',columns).limit(limit).where({subject:String(id)})
|
|
}))
|
|
|
|
//
|
|
// Create an order with the OrdersService when CatalogService signals a new order
|
|
//
|
|
CatalogService.on ('OrderedBook', async (msg) => {
|
|
const { book, quantity, buyer } = msg.data
|
|
const { title, price } = await db.read (Books, book, b => { b.title, b.price })
|
|
return OrdersService.create ('OrdersNoDraft').entries({
|
|
OrderNo: 'Order at '+ (new Date).toLocaleString(),
|
|
Items: [{ product:{ID:`${book}`}, title, price, quantity }],
|
|
buyer, createdBy: buyer
|
|
})
|
|
})
|
|
|
|
//
|
|
// Update Books' average ratings when ReviewsService signals updated reviews
|
|
//
|
|
ReviewsService.on ('reviewed', (msg) => {
|
|
console.debug ('> received:', msg.event, msg.data) // eslint-disable-line no-console
|
|
const { subject, count, rating } = msg.data
|
|
return UPDATE(Books,subject).with({ numberOfReviews:count, rating })
|
|
})
|
|
|
|
//
|
|
// Reduce stock of ordered books for orders are created from Orders admin UI
|
|
//
|
|
OrdersService.on ('OrderChanged', (msg) => {
|
|
console.debug ('> received:', msg.event, msg.data) // eslint-disable-line no-console
|
|
const { product, deltaQuantity } = msg.data
|
|
return UPDATE (Books) .where ('ID =', product)
|
|
.and ('stock >=', deltaQuantity)
|
|
.set ('stock -=', deltaQuantity)
|
|
})
|
|
})
|