...

_packages/bookstore/db/data/sap.capire.bookstore-Authors.csv

@@ -0,0 +1,5 @@
+ID;firstname;lastname;dateOfBirth;placeOfBirth;dateOfDeath;placeOfDeath
+101;Emily;Brontë;1818-07-30;Thornton, Yorkshire;1848-12-19;Haworth, Yorkshire
+107;Charlotte;Brontë;1818-04-21;Thornton, Yorkshire;1855-03-31;Haworth, Yorkshire
+150;Edgar Allen;Poe;1809-01-19;Boston, Massachusetts;1849-10-07;Baltimore, Maryland
+170;Richard;Carpenter;1929-08-14;King’s Lynn, Norfolk;2012-02-26;Hertfordshire, England

_packages/bookstore/db/data/sap.capire.products-Categories.csv

@@ -0,0 +1,11 @@
+ID;parent_ID;name
+1;;Poetry
+2;;Biography
+3;;Fantasy
+4;;Science Fiction
+5;;Romance
+6;;Mystery
+7;;Thriller
+8;;Dystopia
+9;;Tragedy
+10;;Novel

_packages/bookstore/db/data/sap.capire.products-Products.csv

@@ -0,0 +1,6 @@
+ID;title;descr;author_ID;stock;price;currency_code;category_ID
+201;Wuthering Heights;"Wuthering Heights, Emily Brontë's only novel, was published in 1847 under the pseudonym ""Ellis Bell"". It was written between October 1845 and June 1846. Wuthering Heights and Anne Brontë's Agnes Grey were accepted by publisher Thomas Newby before the success of their sister Charlotte's novel Jane Eyre. After Emily's death, Charlotte edited the manuscript of Wuthering Heights and arranged for the edited version to be published as a posthumous second edition in 1850.";101;12;11.11;GBP;9
+207;Jane Eyre;"Jane Eyre /ɛər/ (originally published as Jane Eyre: An Autobiography) is a novel by English writer Charlotte Brontë, published under the pen name ""Currer Bell"", on 16 October 1847, by Smith, Elder & Co. of London. The first American edition was published the following year by Harper & Brothers of New York. Primarily a bildungsroman, Jane Eyre follows the experiences of its eponymous heroine, including her growth to adulthood and her love for Mr. Rochester, the brooding master of Thornfield Hall. The novel revolutionised prose fiction in that the focus on Jane's moral and spiritual development is told through an intimate, first-person narrative, where actions and events are coloured by a psychological intensity. The book contains elements of social criticism, with a strong sense of Christian morality at its core and is considered by many to be ahead of its time because of Jane's individualistic character and how the novel approaches the topics of class, sexuality, religion and feminism.";107;11;12.34;GBP;10
+251;The Raven;"“The Raven"" is a narrative poem by American writer Edgar Allan Poe. First published in January 1845, the poem is often noted for its musicality, stylized language, and supernatural atmosphere. It tells of a talking raven's mysterious visit to a distraught lover, tracing the man's slow fall into madness. The lover, often identified as being a student, is lamenting the loss of his love, Lenore. Sitting on a bust of Pallas, the raven seems to further distress the protagonist with its constant repetition of the word ""Nevermore"". The poem makes use of folk, mythological, religious, and classical references.";150;333;13.13;USD;1
+252;Eleonora;"""Eleonora"" is a short story by Edgar Allan Poe, first published in 1842 in Philadelphia in the literary annual The Gift. It is often regarded as somewhat autobiographical and has a relatively ""happy"" ending.";150;555;14;USD;5
+271;Catweazle;Catweazle is a British fantasy television series, starring Geoffrey Bayldon in the title role, and created by Richard Carpenter for London Weekend Television. The first series, produced and directed by Quentin Lawrence, was screened in the UK on ITV in 1970. The second series, directed by David Reid and David Lane, was shown in 1971. Each series had thirteen episodes, most but not all written by Carpenter, who also published two books based on the scripts.;170;22;15;EUR;3

_packages/bookstore/db/data/sap.capire.products-Products_texts.csv

@@ -0,0 +1,4 @@
+ID;locale;title;descr
+201;de;Sturmhöhe;Sturmhöhe (Originaltitel: Wuthering Heights) ist der einzige Roman der englischen Schriftstellerin Emily Brontë (1818–1848). Der 1847 unter dem Pseudonym Ellis Bell veröffentlichte Roman wurde vom viktorianischen Publikum weitgehend abgelehnt, heute gilt er als ein Klassiker der britischen Romanliteratur des 19. Jahrhunderts.
+207;de;Jane Eyre;Jane Eyre. Eine Autobiographie (Originaltitel: Jane Eyre. An Autobiography), erstmals erschienen im Jahr 1847 unter dem Pseudonym Currer Bell, ist der erste veröffentlichte Roman der britischen Autorin Charlotte Brontë und ein Klassiker der viktorianischen Romanliteratur des 19. Jahrhunderts. Der Roman erzählt in Form einer Ich-Erzählung die Lebensgeschichte von Jane Eyre (ausgesprochen /ˌdʒeɪn ˈɛə/), die nach einer schweren Kindheit eine Stelle als Gouvernante annimmt und sich in ihren Arbeitgeber verliebt, jedoch immer wieder um ihre Freiheit und Selbstbestimmung kämpfen muss. Als klein, dünn, blass, stets schlicht dunkel gekleidet und mit strengem Mittelscheitel beschrieben, gilt die Heldin des Romans Jane Eyre nicht zuletzt aufgrund der Kino- und Fernsehversionen der melodramatischen Romanvorlage als die bekannteste englische Gouvernante der Literaturgeschichte
+252;de;Eleonora;“Eleonora” ist eine Erzählung von Edgar Allan Poe. Sie wurde 1841 erstveröffentlicht. In ihr geht es um das Paradox der Treue in der Treulosigkeit.

_packages/bookstore/db/schema.cds

@@ -0,0 +1,18 @@
+namespace sap.capire.bookstore;
+
+// We reuse Products, which are Books in our domain
+using { sap.capire.products.Products as Books } from '@sap/capire-products';
+extend Books with {
+  author : Association to Authors;
+  rating : Decimal(2,1);
+}
+
+// We reuse aspect Person to define Authors
+using { sap.capire.contacts.Person } from '@sap/capire-contacts';
+entity Authors : Person {
+  key ID : UUID;
+  books  : Association to many Books on books.author = $self;
+}
+
+// we use enhanced currencies code lists
+using from '@sap/capire-currencies';

_packages/bookstore/package.json

@@ -0,0 +1,48 @@
+{
+  "name": "@sap/capire-bookstore",
+  "version": "1.0.0",
+  "description": "A variant of the bookshop application, built on top of products-service and common reuse packages.",
+  "repository": "https://github.com/SAP-samples/cloud-cap-samples.git",
+  "license": "SAP SAMPLE CODE LICENSE",
+  "dependencies": {
+    "@sap/capire-products": "^1.0.0",
+    "@sap/capire-reviews": "^1.0.0",
+    "@sap/capire-orders": "^1.0.0",
+    "@sap/capire-media": "^1.0.0",
+    "@sap/capire-users": "^1.0.0",
+    "@sap/capire-contacts": "^1.0.0",
+    "@sap/capire-currencies": "^1.0.0",
+    "@sap/cds": "latest",
+    "express": "*"
+  },
+  "bundledDependencies": [
+      "@sap/capire-products",
+      "@sap/capire-reviews",
+      "@sap/capire-orders",
+      "@sap/capire-media",
+      "@sap/capire-users",
+      "@sap/capire-contacts",
+      "@sap/capire-currencies"
+  ],
+  "files": [
+    "app", "srv", "db"
+  ],
+  "scripts": {
+    "start": "cds run --in-memory?",
+    "watch": "cds watch"
+  },
+  "cds": {
+    "requires": {
+      "db": {
+        "kind": "sql"
+      },
+      "sap.capire.media.MediaServer": {
+        "kind": "rest"
+      },
+      "sap.capire.reviews.ReviewsService": {
+        "model": "@sap/capire-reviews",
+        "kind": "odata"
+      }
+    }
+  }
+}

_packages/bookstore/srv/_workarounds.cds

@@ -0,0 +1,12 @@
+//----------------------
+// workarounds -> should be done by @cds-compiler
+
+annotate cds.UUID with @odata.Type: 'Edm.String';
+
+using from '@sap/capire-products';
+annotate sap.capire.products.Products with { texts @odata.contained }
+annotate sap.capire.products.Categories with { texts @odata.contained }
+
+annotate sap.capire.reviews.ReviewsService with @imported;
+annotate sap.capire.reviews.Reviews with @cds.persistence.skip;
+annotate sap.capire.reviews.Likes with @cds.persistence.skip;

_packages/bookstore/srv/services.cds

@@ -0,0 +1,35 @@
+namespace sap.capire.bookstore;
+
+// Service for all users to browse books
+using { sap.capire.products } from '../db/schema';
+
+service CatalogService @(path:'browse'){
+
+  @readonly entity Books as select from products.Products { *,
+    author.firstname ||' '|| author.lastname as author : String,
+    category.name as genre,
+  } excluding { createdBy, modifiedBy };
+
+  @readonly entity Genres as projection on products.Categories;
+
+}
+
+// Reuse AdminService from @sap/capire-products...
+using { sap.capire.products.AdminService } from '@sap/capire-products';
+using { sap.capire.bookstore as my } from '../db/schema';
+
+extend service AdminService with @(impl:'srv/services.js') {
+  entity Authors as projection on my.Authors;
+}
+
+// Adding reviews via @sap/capire-reviews service
+using { sap.capire.reviews.ReviewsService as external } from '@sap/capire-reviews';
+extend service CatalogService with {
+  @readonly entity Reviews as projection on external.Reviews;
+}
+
+
+// Adding images via @sap/capire-media service
+using from '@sap/capire-media';
+// using from '@sap/capire-orders';
+// using from '@sap/capire-users';

_packages/bookstore/srv/services.js

@@ -0,0 +1,38 @@
+const cds = require('@sap/cds')
+module.exports['sap.capire.bookstore.CatalogService'] = cds.service.impl (async (srv) => {
+
+    const ReviewsService = await cds.connect.to ('sap.capire.reviews.ReviewsService')
+    const { Reviews } = ReviewsService.entities
+    const { Books } = srv.entities
+
+    // delegate requests to reviews service
+    srv.on('READ', 'Reviews', async (req) => {
+        const { SELECT } = cds.ql(req)
+        const results = await SELECT.from (Reviews)
+
+        // TODO: Should actually be using .where of fluent query API
+        if (req.query.SELECT.where) {
+            return results.filter (row => row.subject === req.query.SELECT.where[2].val)
+        }
+
+        return results
+    })
+
+    // react on event messages from reviews service
+    ReviewsService.on ('reviewed', (msg) => {
+        console.debug ('> received message:', msg.event, msg.data)
+        const {subject,rating} = msg.data
+        const tx = cds.transaction(msg)
+        return tx.run (UPDATE(Books).set({rating}) .where ({ID:subject})) //.then (console.log)
+    })
+
+})
+
+
+// FIXME: pls remove this...
+process.env.destinations = JSON.stringify([{
+    name: 'reviewsDest',
+    url: 'http://localhost:4005/reviews',
+    username: 'dummy',
+    password: 'dummy'
+}])

_packages/bookstore/tests/books.cds

@@ -0,0 +1,7 @@
+using { sap.capire.products as my } from '../db/schema';
+
+service BooksService {
+  entity Books as SELECT from my.Products;
+}
+
+annotate cds.UUID with @odata.Type: 'Edm.String';

_packages/bookstore/tests/localized-data.test.js

@@ -0,0 +1,190 @@
+const cds = require ('@sap/cds')
+
+describe('Localized data on db level', ()=>{
+
+    let db, Books
+
+    it ('should deploy the db schema to sqlite in-memory', async()=>{
+        db = await cds.deploy (__dirname+'/books') .to ('sqlite::memory:')
+        expect (db.model) .toBeDefined()
+        Books = db.entities('sap.capire.products').Products
+        expect (Books) .toBeDefined()
+    })
+
+    it ('should list all books with default language', async ()=>{
+        const books = await SELECT.from (Books, b=>b.title)
+        expect (books) .toMatchObject([
+            { title: 'Wuthering Heights' },
+            { title: 'Jane Eyre' },
+            { title: 'The Raven' },
+            { title: 'Eleonora' },
+            { title: 'Catweazle' }
+        ])
+    })
+
+
+    it ('should read translated texts from Books_texts', async ()=>{
+        const texts = await SELECT ('locale','title').from (Books+'_texts')
+        expect (texts) .toMatchObject ([
+            { locale: 'de', title: 'Sturmhöhe' },
+            { locale: 'de', title: 'Jane Eyre' },
+            { locale: 'de', title: 'Eleonora' }
+        ])
+    })
+
+    it ('should read translated texts from Books.texts', async ()=>{
+        const book = await SELECT.one.from (Books, b=>{
+            b.ID, b.title, b.texts(t=> {
+                t.locale, t.title
+            })
+        }) .where ({title:'Wuthering Heights'})
+        expect (book) .toMatchObject ({
+            title: 'Wuthering Heights', texts:[
+                {locale:'de',title:'Sturmhöhe'}
+            ]
+        })
+    })
+
+    it ('should insert books with translated texts', async ()=>{
+        const n = await INSERT.into (Books) .entries ({ ID:444, title:'A New Book', texts:[
+            {locale:'de', title:'Ein Neues Buch'},
+            {locale:'fr', title:'Un Nouveau Livre'},
+        ]})
+        expect(n).toBe(3)
+    })
+
+    it ('should delete books w/ cascaded delete to texts', async()=>{
+        const n = await DELETE.from(Books) .where ({ID:444})
+        expect(n).toBe(3)
+    })
+
+})
+
+
+describe('Localized data on service level', ()=>{
+
+    let srv, Books
+
+    it ('should serve BooksService', async()=>{
+        srv = await cds.serve('BooksService').from(__dirname+'/books')
+        expect (srv.model) .toBeDefined()
+        Books = srv.entities.Books
+        expect (Books) .toBeDefined()
+    })
+
+    it ('should list all books with default language', async ()=>{
+        const books = await srv.read (Books, b=>b.title)
+        expect (books) .toMatchObject([
+            { title: 'Wuthering Heights' },
+            { title: 'Jane Eyre' },
+            { title: 'The Raven' },
+            { title: 'Eleonora' },
+            { title: 'Catweazle' }
+        ])
+    })
+
+    it ('should read Books with translated texts', async ()=>{
+        const book = await srv.run (
+            SELECT.from (Books, b=>{ b.ID, b.title, b.texts(t=> {
+                t.locale, t.title
+            })}) .where ({title:'Wuthering Heights'})
+        )
+        expect (book) .toMatchObject ([{
+            title: 'Wuthering Heights', texts:[
+                {locale:'de',title:'Sturmhöhe'}
+            ]
+        }])
+    })
+
+    it ('should do the same with convenient method', async ()=>{
+        const book = await srv.read (Books, b=>{ b.ID, b.title, b.texts(t=> {
+            t.locale, t.title
+        })}) .where ({title:'Wuthering Heights'})
+        expect (book) .toMatchObject ([{
+            title: 'Wuthering Heights', texts:[
+                {locale:'de',title:'Sturmhöhe'}
+            ]
+        }])
+    })
+
+    it ('should read single Book with translated texts', async ()=>{
+        const book = await srv.run (
+            SELECT.one.from (Books, b=>{ b.ID, b.title, b.texts(t=> {
+                t.locale, t.title
+            })}) .where ({title:'Wuthering Heights'})
+        )
+        expect (book) .toMatchObject ({
+            title: 'Wuthering Heights', texts:[
+                {locale:'de',title:'Sturmhöhe'}
+            ]
+        })
+    })
+
+    it ('should insert books with translated texts', async ()=>{
+        const book = { ID:444, title:'A New Book', texts:[
+            {locale:'de', title:'Ein Neues Buch'},
+            {locale:'fr', title:'Un Nouveau Livre'},
+        ]}
+        const response = await srv.create (Books) .entries (book)
+        expect(response).toMatchObject(book)
+    })
+
+    it ('should delete books w/ cascaded delete to texts', async()=>{
+        await srv.delete('Books') .where ({ID:444})
+    })
+})
+
+
+describe('Localized data on OData level', () => {
+
+    const app = require('express')()
+    const srv = require('supertest')(app)
+
+    it ('should serve BooksService', async ()=>{
+        await cds.serve('BooksService').from(__dirname+'/books') .in (app)
+    })
+
+    it('should list all books with default language', async () => {
+      const books = await srv.get('/books/Books/201/title')
+      expect(books.body).toMatchObject({'value': 'Wuthering Heights'})
+    })
+
+    it('should read books with translated texts', async () => {
+      const books = await srv.get('/books/Books/201/title'). set('Accept-Language', 'de')
+      expect(books.body).toMatchObject({value: 'Sturmhöhe'})
+    })
+
+    it('should expand translated texts in Book', async () => {
+      const books = await srv. get('/books/Books/201?$select=title&$expand=texts($select=locale,title)')
+      expect(books.body).toMatchObject({
+        title: 'Wuthering Heights',
+        texts: [
+            { locale: 'de', title: 'Sturmhöhe', },
+        ],
+      })
+    })
+
+    const book = {
+        title: 'New Book', descr: 'Lorem Ipsum',
+        texts: [
+            { locale: 'de', title: 'Neues Buch', descr: 'Dolor sit amet' },
+            { locale: 'fr', title: 'Nouveau Livre', descr: 'consetetur sadipscing elitr' }
+        ],
+    }
+
+    it('should insert books with translated texts', async () => {
+        const {body} = await srv.post('/books/Books').send(book)
+        expect(body).toMatchObject(book)
+        book.ID = body.ID
+    })
+
+    it ('should read the newly created book', async()=>{
+        const {body} = await srv.get('/books/Books/'+book.ID+'?$expand=texts').send(book)
+        expect(body).toMatchObject(book)
+    })
+
+    it ('should delete books w/ cascaded delete to texts', async()=>{
+        await srv.delete('/books/Books/'+book.ID)
+        .expect(204)
+    })
+})