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cloud-cap-samples/db/extension.cds
2021-09-22 10:38:00 +02:00

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using {sap.capire.bookshop} from '_base/db/schema';
using {sap.capire.orders} from '_base/db/schema';
using from '_base/db/capire_common';
using {
cuid, managed, Country, sap.common.CodeList
} from '@sap/cds/common';
namespace Z_bookshop.extension;
// extend existing entity
extend orders.Orders with {
Z_Customer : Association to one Z_Customers;
Z_SalesRegion : Association to one Z_SalesRegion;
Z_priority : String @assert.range enum {high; medium; low} default 'medium';
Z_Remarks : Composition of many Z_Remarks on Z_Remarks.parent = $self;
}
// new entity - as association target
entity Z_Customers : cuid, managed
{
email : String;
firstName : String;
lastName : String;
creditCardNo : String;
dateOfBirth : Date;
status : String @assert.range enum {platinum; gold; silver; bronze} default 'bronze';
creditScore : Decimal @assert.range: [ 1.0, 100.0 ] default 50.0;
PostalAddresses : Composition of many Z_CustomerPostalAddresses on PostalAddresses.Customer = $self;
}
// new unique constraint (secondary index)
annotate Z_Customers with @assert.unique: { email: [ email ] }
{
email @mandatory; // mandatory check
}
// new entity - as composition target
entity Z_CustomerPostalAddresses : cuid, managed
{
Customer : Association to one Z_Customers;
description : String;
street : String;
town : String;
country : Country;
}
// new entity - as code list
entity Z_SalesRegion: CodeList {
key regionCode : String(11);
}
// new entity - as composition target
entity Z_Remarks : cuid, managed
{
parent : Association to one orders.Orders;
number : Integer;
remarksLine : String;
}