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changed modeling of suppliers

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d045778
2021-03-11 16:58:29 +01:00
parent 0ddd70acbc
commit 803432b8d9
1 changed files with 10 additions and 37 deletions
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47
suppliers/srv/mashup.cds
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@@ -3,53 +3,26 @@
you actually want to use from there. you actually want to use from there.
*/ */
using { API_BUSINESS_PARTNER as S4 } from './external/API_BUSINESS_PARTNER.csn'; using {API_BUSINESS_PARTNER as S4} from './external/API_BUSINESS_PARTNER.csn';
extend service S4 with {
context replica {
@cds.autoexpose // or expose explicitly in Catalog and AdminService
@cds.persistence: {table, skip: false}
entity Suppliers as projection on S4.A_BusinessPartner { entity Suppliers as projection on S4.A_BusinessPartner {
key BusinessPartner as ID, key BusinessPartner as ID,
BusinessPartnerFullName as name, BusinessPartnerFullName as name
// REVISIT: following is not supported so far in cds compiler...
// to_BusinessPartnerAddress as city {
// CityCode as code,
// CityName as name
// }
// REVISIT: following is not supported so far in cqn2odata...
// to_BusinessPartnerAddress.CityCode as city,
// to_BusinessPartnerAddress.CityName as city_name,
} }
} }
/*
You can mashup entities from external services, or projections
thereof, with your project's own entities
*/
using { sap.capire.bookshop.Books, CatalogService } from '@capire/bookshop'; using { sap.capire.bookshop.Books, CatalogService } from '@capire/bookshop';
extend Books with { extend Books with {
supplier : Association to S4.Suppliers; supplier : Association to replica.Suppliers;
} }
extend service AdminService with { // why is AdminService visible?
/* entity Suppliers as projection on replica.Suppliers;
You can also expose external entities through your own services
For this to work, you need to delegate the respective calls
addressed to your services into calls to the external service.
*/
extend service AdminService with {
entity Suppliers as projection on S4.Suppliers;
} }
/*
Optionally add a local persistence to keep replicas of external
entities to have data in fast access locally; much like a cache.
*/
annotate S4.Suppliers with @cds.persistence:{table,skip:false};
/**
Having locally cached replicas also allows us to display supplier
data in lists of books, which otherwise would generate unwanted
traffic on S4 backends.
*/
extend projection CatalogService.ListOfBooks with { extend projection CatalogService.ListOfBooks with {
supplier supplier
} }