Finalize ToDo's

.eslintrc

@@ -1,25 +1,22 @@
 {
-  "extends": [
-    "plugin:@sap/cds/recommended",
-    "eslint:recommended"
-  ],
+    "extends": "eslint:recommended",
     "env": {
         "browser": true,
-    "es2022": true,
         "node": true,
+        "es6": true,
         "jest": true,
         "mocha": true
     },
+    "parserOptions": {
+        "ecmaVersion": 2020
+    },
     "globals": {
         "SELECT": true,
         "INSERT": true,
-    "UPSERT": true,
         "UPDATE": true,
         "DELETE": true,
         "CREATE": true,
         "DROP": true,
-    "CDL": true,
-    "CQL": true,
         "cds": true
     },
     "rules": {

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-  - name: This channel is CLOSED. 
-    about: Use SAP community instead
-    url: https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce

.github/ISSUE_TEMPLATE/question--feedback-or-bug-.md

@@ -0,0 +1,10 @@
+---
+name: This channel is CLOSED. 
+about: Use our community at  https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Please use our community on https://answers.sap.com/tags/9f13aee1-834c-4105-8e43-ee442775e5ce

.github/workflows/node.js.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 16.x, 14.x]
+        node-version: [16.x, 14.x, 12.x]
 
     steps:
     - uses: actions/checkout@v2
@@ -24,6 +24,5 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm i -g npm@8
     - run: npm ci
     - run: npm test

.gitignore

@@ -12,13 +12,8 @@ target/
 *.mtar
 connection.properties
 default-env.json
-.cdsrc-private.json
 packages/messageBox
 reviews/msg-box
 reviews/db/test.db
 
 *.openapi3.json
-*.sqlite
-*.db
-
-**/@types

.registry/.gitignore

@@ -0,0 +1 @@
+*.tgz

.registry/server.js

@@ -0,0 +1,81 @@
+const { exec } = require ('child_process')
+const isWin = process.platform === 'win32'
+const express = require ('express')
+const fs = require ('fs')
+const app = express()
+
+const { PORT=4444 } = process.env
+const [,,port=PORT,scope='@capire'] = process.argv
+const cwd = __dirname
+
+// clean up on start (exit handler might not complete on Windows)
+exec(isWin ? 'del *.tgz' : 'rm *.tgz', {cwd})
+
+
+app.use('/-/:tarball', (req,res,next) => {
+  console.debug ('GET', req.params)
+  try {
+    const { tarball } = req.params
+    const pkgFull = tarball.substring(0, tarball.lastIndexOf('-'))
+    const [, pkg ] = /^\w+-(.+)/.exec(pkgFull)
+    fs.lstat(tarball,(err => {
+      if (err) console.debug (`npm pack ../${pkg}`)
+      if (err) exec(`npm pack ../${pkg}`,{cwd},next)
+      else next()
+    }))
+  } catch (e) {
+    console.error(e)
+    res.sendStatus(500)
+  }
+})
+
+app.use('/-', express.static(__dirname))
+
+app.get('/*', (req,res)=>{
+  const urlRegex = /^\/(@[\w-]+)\/(.+)/
+  const url = decodeURIComponent(req.url)
+  console.debug ('GET',url)
+  try {
+    if (!urlRegex.test(url))  return res.sendStatus(404)
+    const [, scpe, pkg ] = urlRegex.exec(url)
+    const package = require (`${scpe}/${pkg}/package.json`)
+    const tarball = `${scpe.slice(1)}-${pkg}-${package.version}.tgz`
+    // https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md
+    res.json({
+      "name": package.name,
+      "dist-tags": {
+        "latest": package.version
+      },
+      "versions": {
+        [package.version]: {
+          "name": package.name,
+          "version": package.version,
+          "dist": {
+            "tarball": `${server.url}/-/${tarball}`
+          },
+        }
+      },
+    })
+  } catch (e) {
+    if (e.code === 'MODULE_NOT_FOUND')  return res.sendStatus(404)
+    console.error(e);  throw e
+  }
+})
+
+const server = app.listen(port, ()=>{
+  const url = server.url = `http://localhost:${server.address().port}`
+  console.log (`npm set ${scope}:registry=${url}`)
+  exec(`npm set ${scope}:registry=${url}`)
+  console.log (`${scope} registry listening on ${url}`)
+})
+
+
+const _exit = ()=>{
+  server.close()
+  exec(`npm conf rm "${scope}:registry"`, ()=> { process.exit() })
+}
+
+process.on ('SIGTERM',_exit)
+process.on ('SIGHUP',_exit)
+process.on ('SIGINT',_exit)
+process.on ('SIGUSR2',_exit)

.tours/samples.tour

@@ -104,7 +104,7 @@
     },
     {
       "file": "fiori/app/services.cds",
-      "description": "### Annotations for SAP Fiori Elements\n\nAdds an SAP Fiori elements application to bookstore, thereby introducing:\n- OData Annotations in `.cds` files\n- Support for Fiori Draft\n- Support for Value Helps\n- Serving SAP Fiori apps locally\n\nSee the [Serving Fiori UIs](https://cap.cloud.sap/docs/advanced/fiori) documentation for more information.",
+      "description": "### Annotations for SAP Fiori Elements\n\n- [Adds an SAP Fiori elements application](https://cap.cloud.sap/docs/guides/fiori/) to bookstore, thereby introducing to:\n- [OData Annotations](https://cap.cloud.sap/docs/guides/fiori#adding-odata-annotations) in `.cds` files\n- Support for [Fiori Draft](https://cap.cloud.sap/docs/guides/fiori#draft)\n- Support for [Value Helps](https://cap.cloud.sap/docs/guides/fiori#value-help)\n- Serving SAP Fiori apps locally\n",
       "line": 1,
       "selection": {
         "start": {

.vscode/launch.json

@@ -13,7 +13,7 @@
         "<node_internals>/**",
         "**/node_modules/**",
         "**/cds/lib/lazy.js",
-        "**/cds/lib/req/cds-context.js",
+        "**/cds/lib/req/cls.js",
         "**/odata-v4/okra/**"
       ]
     },
@@ -26,24 +26,10 @@
         "<node_internals>/**",
         "**/node_modules/**",
         "**/cds/lib/lazy.js",
-        "**/cds/lib/req/cds-context.js",
+        "**/cds/lib/req/cls.js",
         "**/odata-v4/okra/**"
       ]
-    },
-    {
-      "name": "Debug Mocha Tests",
-      "type": "node",
-      "request": "attach",
-      "port": 9229,
-      "continueOnAttach": true,
-      "skipFiles": [
-        "<node_internals>/**",
-        "**/node_modules/**",
-        "**/cds/lib/lazy.js",
-        "**/cds/lib/req/cds-context.js",
-        "**/odata-v4/okra/**",
-      ]
-    },
+    }
   ],
   "inputs": [
     {

.vscode/settings.json

@@ -10,18 +10,9 @@
       "<node_internals>/**",
       "**/node_modules/**",
       "**/cds/lib/lazy.js",
-      "**/cds/lib/req/cds-context.js",
+      "**/cds/lib/req/cls.js",
       "**/odata-v4/okra/**"
     ]
   },
-  "mochaExplorer.debuggerConfig": "Debug Mocha Tests",
-  "mochaExplorer.parallel": true,
-  "eslint.probe": [
-    "cds",
-    "csn",
-    "csv",
-    "csv (semicolon)",
-    "tsv",
-    "tab"
-  ]
+  "mochaExplorer.parallel": true
 }

README.md

@@ -7,14 +7,13 @@ Find here a collection of samples for the [SAP Cloud Application Programming Mod
 
 ### Preliminaries
 
-1. Ensure you have the latest LTS version of Node.js installed (see [Getting Started](https://cap.cloud.sap/docs/get-started/))
-2. Install [**@sap/cds-dk**](https://cap.cloud.sap/docs/get-started/) globally:
+1. Install [**@sap/cds-dk**](https://cap.cloud.sap/docs/get-started/) globally:
 
    ```sh
    npm i -g @sap/cds-dk
    ```
 
-3. _Optional:_ [Use Visual Studio Code](https://cap.cloud.sap/docs/get-started/tools#vscode)
+2. _Optional:_ [Use Visual Studio Code](https://cap.cloud.sap/docs/get-started/tools#vscode)
 
 ### Download
 

bookshop/app/vue/app.js

@@ -10,7 +10,7 @@ const books = Vue.createApp ({
         list: [],
         book: undefined,
         order: { quantity:1, succeeded:'', failed:'' },
-        user: undefined
+        user: {}
       }
     },
 
@@ -42,48 +42,20 @@ const books = Vue.createApp ({
             }
         },
 
-        async login() {
+        async fetchUserInfo() {
             try {
-                const { data:user } = await axios.post('/user/login',{})
-                if (user.id !== 'anonymous') books.user = user
+                const { data } = await axios.get('/user/me')
+                books.user = data
             } catch (err) { books.user = { id: err.message } }
-        },
-
-        async getUserInfo() {
-            try {
-                const { data:user } = await axios.get('/user/me')
-                if (user.id !== 'anonymous') books.user = user
-            } catch (err) { books.user = { id: err.message } }
-        },
         }
-}).mount('#app')
+    }
+}).mount("#app")
 
-books.getUserInfo()
-books.fetch() // initially fill list of books
+// initially fill list of books
+books.fetch()
 
+books.fetchUserInfo()
 document.addEventListener('keydown', (event) => {
     // hide user info on request
     if (event.key === 'u')  books.user = undefined
 })
-
-axios.interceptors.request.use(csrfToken)
-function csrfToken (request) {
-    if (request.method === 'head' || request.method === 'get') return request
-    if ('csrfToken' in document) {
-        request.headers['x-csrf-token'] = document.csrfToken
-        return request
-    }
-    return fetchToken().then(token => {
-        document.csrfToken = token
-        request.headers['x-csrf-token'] = document.csrfToken
-        return request
-    }).catch(_ => {
-        document.csrfToken = null // set mark to not try again
-        return request
-    })
-
-    function fetchToken() {
-        return axios.get('/', { headers: { 'x-csrf-token': 'fetch' } })
-        .then(res => res.headers['x-csrf-token'])
-    }
-}

bookshop/app/vue/index.html

@@ -18,17 +18,11 @@
 <body class="small-container", style="margin-top: 70px;">
 <div id='app'>
 
-    <form class="user" @submit.prevent="login">
-        <div v-if="user">
-            <div v-if="user.tenant">Tenant: {{ user.tenant }}</div>
-            <div> User: {{ user.id }}</div>
+    <div v-if="user" class="user">
+        <div>User: {{ user.id || 'anonymous' }}</div>
         <div>Locale: {{ user.locale }}</div>
+        <div v-if="user.tenant">Tenant: {{ user.tenant }}</div>
     </div>
-        <div v-else>
-            <input type="submit" value="Login" class="muted-button">
-            <!-- <a href="/user/login()">Login</a> -->
-        </div>
-    </form>
 
     <h1> Capire Books </h1>
 

bookshop/db/data/sap.capire.bookshop-Authors.csv

@@ -1,5 +1,5 @@
-ID,name,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"
+ID;name;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

bookshop/db/data/sap.capire.bookshop-Books.csv

@@ -1,6 +1,6 @@
-ID,title,descr,author_ID,stock,price,currency_code,genre_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,11
-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,11
-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,16
-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,15
-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.",170,22,150,JPY,13
+ID;title;descr;author_ID;stock;price;currency_code;genre_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;11
+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;11
+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;16
+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;16
+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;150;JPY;13

bookshop/db/data/sap.capire.bookshop-Books.texts.csv

@@ -1,5 +0,0 @@
-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."
-201,fr,Les Hauts de Hurlevent,"Les Hauts de Hurlevent (titre original : Wuthering Heights), parfois orthographié Les Hauts de Hurle-Vent, est l'unique roman d'Emily Brontë, publié pour la première fois en 1847 sous le pseudonyme d’Ellis Bell. Loin d'être un récit moralisateur, Emily Brontë achève néanmoins le roman dans une atmosphère sereine, suggérant le triomphe de la paix et du Bien sur la vengeance et le Mal."
-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."

bookshop/db/data/sap.capire.bookshop-Books_texts.csv

@@ -0,0 +1,5 @@
+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.
+201;fr;Les Hauts de Hurlevent;Les Hauts de Hurlevent (titre original : Wuthering Heights), parfois orthographié Les Hauts de Hurle-Vent, est l'unique roman d'Emily Brontë, publié pour la première fois en 1847 sous le pseudonyme d’Ellis Bell. Loin d'être un récit moralisateur, Emily Brontë achève néanmoins le roman dans une atmosphère sereine, suggérant le triomphe de la paix et du Bien sur la vengeance et le Mal.
+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.

bookshop/db/data/sap.capire.bookshop-Genres.csv

@@ -1,16 +1,16 @@
-ID,parent_ID,name
-10,,Fiction
-11,10,Drama
-12,10,Poetry
-13,10,Fantasy
-14,10,Science Fiction
-15,10,Romance
-16,10,Mystery
-17,10,Thriller
-18,10,Dystopia
-19,10,Fairy Tale
-20,,Non-Fiction
-21,20,Biography
-22,21,Autobiography
-23,20,Essay
-24,20,Speech
+ID;parent_ID;name
+10;;Fiction
+11;10;Drama
+12;10;Poetry
+13;10;Fantasy
+14;10;Science Fiction
+15;10;Romance
+16;10;Mystery
+17;10;Thriller
+18;10;Dystopia
+19;10;Fairy Tale
+20;;Non-Fiction
+21;20;Biography
+22;21;Autobiography
+23;20;Essay
+24;20;Speech

bookshop/db/handlers/sandbox.cds

@@ -0,0 +1,2 @@
+using from '..\..\schema';
+

bookshop/db/init.js

@@ -4,21 +4,21 @@
  * currencies, if not obtained through @capire/common.
  */
 
-module.exports = async (tx)=>{
+module.exports = async (db)=>{
 
-  const has_common = tx.model.definitions['sap.common.Currencies']?.elements.numcode
+  const has_common = db.model.definitions['sap.common.Currencies'].elements.numcode
   if (has_common) return
 
-  const already_filled = await tx.exists('sap.common.Currencies',{code:'EUR'})
+  const already_filled = await db.exists('sap.common.Currencies',{code:'EUR'})
   if (already_filled) return
 
-  await tx.run (INSERT.into ('sap.common.Currencies') .columns (
-    [ 'code', 'symbol', 'name' ]
+  await INSERT.into ('sap.common.Currencies') .columns (
+    'code','symbol','name'
   ) .rows (
-    [ 'EUR', '€', 'Euro' ],
-    [ 'USD', '$', 'US Dollar' ],
-    [ 'GBP', '£', 'British Pound' ],
-    [ 'ILS', '₪', 'Shekel' ],
-    [ 'JPY', '¥', 'Yen' ],
-  ))
+    [ 'EUR','€','Euro' ],
+    [ 'USD','$','US Dollar' ],
+    [ 'GBP','£','British Pound' ],
+    [ 'ILS','₪','Shekel' ],
+    [ 'JPY','¥','Yen' ],
+  )
 }

bookshop/db/schema.cds

@@ -1,7 +1,14 @@
-using { Currency, managed, sap } from '@sap/cds/common';
+using {
+  Currency,
+  managed,
+  sap,
+  extensible
+} from '@sap/cds/common';
+
 namespace sap.capire.bookshop;
 
-entity Books : managed {
+@Extensibility.Any.Enabled : true
+entity Books : managed, extensible {
   key ID         : Integer;
       title      : localized String(111);
       descr      : localized String(1111);
@@ -11,21 +18,39 @@ entity Books : managed {
       price      : Decimal;
       currency   : Currency;
       image      : LargeBinary @Core.MediaType : 'image/png';
+      authorName : String;
 }
 
-entity Authors : managed {
+
+entity Authors : managed, extensible {
   key ID           : Integer;
       name         : String(111);
       dateOfBirth  : Date;
       dateOfDeath  : Date;
       placeOfBirth : String;
       placeOfDeath : String;
-  books  : Association to many Books on books.author = $self;
+
+      books        : Association to many Books
+                       on books.author = $self;
 }
 
-/** Hierarchically organized Code List for Genres */
+extend Authors with {
+  virtual age : Integer;
+  virtual exampleBook: String;
+}
+
+/**
+ * Hierarchically organized Code List for Genres
+ */
 entity Genres : sap.common.CodeList {
   key ID       : Integer;
       parent   : Association to Genres;
-  children : Composition of many Genres on children.parent = $self;
+      children : Composition of many Genres
+                   on children.parent = $self;
+}
+
+entity Publishers: managed {
+  key ID: Integer;
+  name: String(111);
+
 }

bookshop/handlers/AdminService.Authors.CREATE.js

@@ -0,0 +1,17 @@
+async function run() {
+  //debugger
+  //while (true) {}
+  //process.exit()
+  //1.substring()
+  // let res = await specialselect
+  let res = await SELECT.one`title`.from(`Books`).where(`ID=201`)
+  let { title } = res
+  let Author = req.data
+  //await srv.read('Books')
+  
+  Author.modifiedBy = "Custom Event handler changed this!"
+  Author.placeOfDeath = " --- Somewhere over " + title + " --- create in Sandbox"
+  //await this.emit("createdAuthor", { Author })
+  return Author
+}
+run()

bookshop/handlers/AdminService.Authors.READ.js

@@ -0,0 +1,41 @@
+function getYear(v) {
+  return parseInt(v.substr(0, 4))
+}
+function getMonth(v) {
+  return parseInt(v.substr(5, 2))
+}
+function getDay(v) {
+  return parseInt(v.substr(8, 2))
+}
+
+function getAge(from, to) {
+  if (from === undefined || from == null) return 0
+  if (to === undefined || to == null) to = new Date().toISOString()
+  let year = getYear(to) - getYear(from) - 1
+  if (
+    getMonth(to) > getMonth(from) ||
+    (getMonth(to) === getMonth(from) && getDay(to) >= getDay(from))
+  ) {
+    year++
+  }
+  return year
+}
+
+async function run() {
+  const result_ = Array.isArray(result) ? result : [result]
+  for (const row of result_) {
+    row.age = getAge(row.dateOfBirth, row.dateOfDeath)
+    let res = await SELECT.one`title`.from(`Books`).where({ author_ID: row.ID })
+    if (!res) {
+      res = {}
+    }
+    let { title } = res
+    if (!title) {
+      title = "no Books yet"
+    }
+    row.exampleBook = title
+    //let pub = await SELECT.one`name`.from(`sap_capire_bookshop_Publishers`)
+  }
+}
+
+run()

bookshop/handlers/AdminService.Books.CREATE.js

@@ -0,0 +1,9 @@
+
+async function run() {
+  const {stock, price, author_ID} = req.data
+  if (stock<0) return req.reject('409', 'Stock must not be negative')
+  if (price<0) return req.reject('409', 'Price must not be negative')
+  let {name} = await SELECT.one`name`.from(`Authors`).where({ID: author_ID})
+  req.data.authorName=name
+}
+output = run()

bookshop/handlers/AdminService.Books.READ.js

@@ -0,0 +1,6 @@
+const result_ = Array.isArray(result) ? result : [result];
+for (const row of result_) {
+  if (row.stock > 50) {
+    row.title += " ---Order now for a 10% discount!";
+  }
+}

bookshop/handlers/AdminService.renameAuthor.ON.js

@@ -0,0 +1,9 @@
+async function run() {
+  const {author, newName} = req.data
+  let a = await SELECT `name`.from(`Authors`).where({ID: author})
+  if(!a) return req.error (404, `Can't rename a non-existing author`)
+  await UPDATE (`Authors`,author).with ({ name: newName })
+    //await this.emit ('renamedAuthor', { author, newName })
+  output.msg = 'Success' 
+}
+run()

bookshop/handlers/createdAuthor.ON.js

@@ -0,0 +1,5 @@
+async function run() {
+  let {Author} = req.data
+  Author.placeOfBirth += ' --- modified in custom event' 
+}
+run()

bookshop/index.cds

@@ -2,4 +2,3 @@ namespace sap.capire.bookshop; //> important for reflection
 using from './db/schema';
 using from './srv/cat-service';
 using from './srv/admin-service';
-using from './srv/user-service';

bookshop/notebook.md

@@ -0,0 +1,112 @@
+# Base assumption
+
+Event handlers will always use **publicly available application API's**(services)
+
+- already done in Sandbox API by overwriting **SELECT**, **UPDATE**, **READ** and **CREATE**
+
+## Inbound data for validations
+
+- req.target plus expand on related data
+  - lazy loading on expand
+- event facade could have an explicit publishing of specific services or documents (e.g. remote services)
+- CQN Protocol adapter for subsequent reads --> req.data plus application service calls
+- what is the CDS subset to put in?
+  - req.data + target-rec (proxy, unloaded)
+  - ORM type lazy loading (dereferenced)
+  - application developer could actually provide custom proxies for specific functions
+  - performance impact of multiple accesses to object graph and multiple DB roundtrips
+  - can static code checking or developer annotations influence what is loaded into a graph?
+  - alternative: Stripped-down SELECT limited to req.target and ID
+    - application service only
+    - access rights of user respected
+- What about to-many relationships? For compositions essential, for associations to be questioned
+- Application Service Reads
+- outbound data for changes
+- call remote services
+  - register new remote services dynamically
+  - CAP provides an API on remote services - connect doesn't need to be done by extension developer
+  - alternative: declarative remote services plumbing with CDS service facade
+    - model looks like static internal services, remote calls done transparently behind the scenes
+
+-Emit Events
+
+- choreography of extension points
+  - deep inserts vs. fine grained operations
+  - input validation may be suited for fine grained operations
+  - today not in scope for performance reasons
+  - two different use case: Insert new page to book vs. update order-header with items-constraints in place
+- reject request, return errors and warnings - suitable for UI, too
+
+*/
+
+/*
+Annotations available:
+
+Entity level
+  @expression.constraint : [{if: 'expression evaluates to bool'}, on: ['INSERT, UPDATE, DELETE'], error: 'Transaction Rollback and error message', warning: 'Transaction proceeds and warning message']
+  @expression.computed : [{expression: 'ability to access request payload and modify it', on: ['INSERT, UPDATE']}]
+  @event : [{if: 'expression evaluates to bool', on: ['INSERT, UPDATE, DELETE, READ'], when: 'before or after, default before', emit: 'Event Name', to: 'Messaging target, optional'}]
+  @expresion.code :[{file: 'file name', on:['insert', 'update'], when: 'before or after, default before'},
+                    {source: 'each => { if (each.stock > 111) {each.title += `-- 11% discount!`; each.price= each.price*0.9}', on:['insert', 'update'], when: 'before or after'}]  
+Atribute Level
+  @assert.constraint : {if: 'stock>=0 OR stock <1000', error: 'i18n/error102'};
+  @event : {if: 'expression evaluates to bool', on: ['INSERT, UPDATE, DELETE, READ'], when: 'before or after', emit: 'Event Name', to: 'Messaging target, optional' }
+
+Functions available:
+  EXISTS(association target)
+  COUNT,AVG,MIN,MAX,SUM: Composition items, arrays etc
+  OLD:  before image
+  EACH: loop over composition items
+
+Events covered:
+CRUD --> Longhand and Shorthand supported?
+Upsert as one event?
+Before and after:
+  Before can change change request payload and stop transaction
+  After should trigger only asynchronous messages
+Specific Events for status changes? I think expression based event emitter suffices
+*/
+
+//Entity level annotations
+@expression.constraint : [{if: 'stock>100 AND price>15)', on: ['INSERT', 'UPDATE'], error: 'No Book over price 15 should have more than 100 stock' }, // error, rollback transactions
+{if: 'stock>90 AND price>15)', on: ['I', 'U'], warning: 'No Book over price 15 should have more than 100 stock' }] //warning, proceed with transaction but report warning back to UI
+@expression.computed : {expression: 'if(stock>100) then price=price*0.9', on: ['INSERT']}  //ability to modify the payload of the request, but nothing beyond it
+@expresion.code :[{file: 'sap.capire.bookshop-Books-beforeInsert', on:['insert', 'update'], when: 'before'},  //naming can be arbitrary?
+{source: 'each => { if (each.stock > 111) {each.title += `-- 11% discount!`; each.price= each.price*0.9}', on:['insert', 'update'], when: 'before'}]  //alternative
+@event : { if:'price>200', emit: 'Expensive Book', to: 'RulesEngine'}
+entity Books : managed {
+key ID : Integer;
+title  : localized String(111); @event : {if: 'old.title="Hello"', emit: 'Hello changed' }  //old refers to before Image. No "to" clause means message is emitted to any subscriber interested
+descr  : localized String(1111);
+author : Association to Authors @assert.constraint: 'exists(author)';  //function calls need to evaluate to bool
+genre  : Association to Genres;
+stock  : Integer @assert.constraint : {if: 'stock>=0 OR stock <1000', error: 'Stock not within permitted parameters'}; //when operand is used, no auto-insert
+price  : Decimal(9,2) @assert.constraint : '>0'; //insert operand on left side by default
+currency : Currency;
+image : LargeBinary @Core.MediaType : 'image/png';
+stockWorth: Decimal(9,2) @expression.computed : 'stock*price'; //persisted on write. Overhead in runtime, but performance benefit on read. Payload ignored?
+// stockWorth2 = stock*price;  -- long term goal from compiler team, not persisted on write, but calculated on read
+stockWorth3 : Decimal @expression.computed: 'if (stock*price>1000) then stockWorth3=stock.price else stockworth3=1000';  //which altenative?
+stockWorth4 : Decimal @expression.computed: {if: '(stock*price>1000)', then: 'stockWorth3=stock.price', else: 'stockworth3=1000'};
+}
+//@assert.expression: 'dateOfBirth<dateOfDeath'
+entity Authors : managed {
+key ID : Integer;
+name   : String(111);
+dateOfBirth  : Date ;
+dateOfDeath  : Date @expression.constraint: '>dateOfBirth';
+placeOfBirth : String;
+placeOfDeath : String;
+books  : Association to many Books on books.author = $self;
+}
+
+/** Hierarchically organized Code List for Genres */
+entity Genres : sap.common.CodeList {
+key ID   : Integer;
+parent   : Association to Genres;
+children : Composition of many Genres on children.parent = $self;
+}
+
+```
+
+```

bookshop/package.json

@@ -12,7 +12,8 @@
   "dependencies": {
     "@sap/cds": ">=5.9",
     "express": "^4.17.1",
-    "passport": ">=0.4.1"
+    "passport": ">=0.4.1",
+    "vm2": ">=3.9.9"
   },
   "scripts": {
     "genres": "cds serve test/genres.cds",
@@ -21,7 +22,13 @@
   },
   "cds": {
     "requires": {
-      "db": "sql"
+      "code-extensibility" : true,
+      "db": {
+        "kind": "sqlite",
+        "credentials": {
+          "database": "sqlite.db"
+        }
+      }
     }
   }
 }

bookshop/srv/admin-service.cds

@@ -1,5 +1,30 @@
-using { sap.capire.bookshop as my } from '../db/schema';
-service AdminService @(requires:'admin') {
-  entity Books as projection on my.Books;
-  entity Authors as projection on my.Authors;
+using {sap.capire.bookshop as my} from '../db/schema';
+
+service AdminService // @(requires : 'admin')
+{
+  entity Books   as projection on my.Books actions {
+    action   increaseStock(count : Integer);
+    function stock() returns Integer;
+  };
+
+@Extensibility : {
+  Fields.Enabled      : true,
+  Fields.Quota: 100,
+  Relations.Enabled   : false,
+  Annotations.Enabled : true,
+  Logic.Enabled : true,
+  Logic.constraints: true,
+  Logic.calculations: true,
+  Logic.Handler : [create, update, delete, read]
+}
+  entity Authors as projection on my.Authors;
+
+  action renameAuthor(author : Authors:ID, newName : String) returns {
+    msg : String
+  };
+  function getStock(book: Books:ID) returns Integer;
+  event newBook : {
+    book : Books:ID;
+    name : Books:title
+  };
 }

bookshop/srv/admin-service.js

@@ -1,13 +1,135 @@
-const cds = require('@sap/cds/lib')
+const cds = require("@sap/cds")
+//const cds_sandbox = require("sap/cds/sandbox")
+const { VM, VMScript } = require("vm2")
+const fs = require("fs")
+const path = require("path")
+const { nextTick } = require("process")
+
+class AdminService extends cds.ApplicationService {
+  init() {
+    this.after("READ", async (result, req) => {
+      if (!(result === undefined || result == null)) {
+        const code = getCode(req.target.name, "READ")
+        if (code) {
+          await executeCode.call(this, code, req, result)
+        }
+      }
+    })
+
+    this.before("CREATE", async (req) => {
+      const code = getCode(req.target.name, "CREATE")
+      if (code) {
+        await executeCode.call(this, code, req)
+      }
+    })
+
+    this.before("UPDATE", async (req) => {
+      const code = getCode(req.target.name, "CREATE")
+      if (code) {
+        await executeCode.call(this, code, req)
+      }
+    })
+
+    this.on("*", async (req, next) => {
+      if (!(req.target === undefined || req.target == null)) return next()
+      //ToDo: check whether action or event is part of an extension
+      // DO NOT OVERWRITE EXISTING Action Implementations!
+      // evaluate: Can we augment action implementation with super.next?
+      if (req.constructor.name === "EventMessage") {
+        const code = getCode(req.event, "ON")
+        if (code) {
+          await executeCode.call(this, code, req)
+        }
+      } else if (req.constructor.name === "ODataRequest") {
+        var output = {}
+        const code = getCode(this.name + "." + req.event, "ON")
+        if (code) {
+          await executeCode.call(this, code, req, {}, output)
+          return output
+        }
+      }
+    })
+
+    //ToDo: Prefix for Service not in event emitter
+    this.before("CREATE", "Authors", async (req) => {
+      let Author = req.data
+      await this.emit("createdAuthor", { Author })
+
+    })
  
-module.exports = class AdminService extends cds.ApplicationService { init(){
-  this.before ('NEW','Authors', genid)
-  this.before ('NEW','Books', genid)
     return super.init()
-}}
-
-/** Generate primary keys for target entity in request */
-async function genid (req) {
-  const {ID} = await cds.tx(req).run (SELECT.one.from(req.target).columns('max(ID) as ID'))
-  req.data.ID = ID - ID % 100 + 100 + 1
+  }
 }
+
+var counter = 1;
+
+function newLabel() {return "VM2 - req: " + counter++}
+
+//should only work in local exection (cds watch)
+// alternative: Upon Bootstrapping, merge files into CSN
+function getCodeFromFile(name, operation) {
+  const filename = name + "." + operation + ".js"
+  const file = path.join(__dirname, "..", "handlers", filename)
+  try {
+    const code = fs.readFileSync(file, "utf8")
+    return code
+  } catch (error) {
+    return ""
+  }
+}
+
+//after push this should be the only thing that works
+function getCodeFromAnnotation(name, operation) {
+  return ""
+}
+
+function getCode(name, operation) {
+  let code=getCodeFromAnnotation(name, operation)
+  if (code==="") {code=getCodeFromFile(name, operation)}
+  return code
+}
+
+function scanCode(code) {
+  //ESLINT
+}
+
+async function executeCode(code, req, result, output) {
+  const srv = this
+  const label=newLabel()
+  console.time(label)
+  const vm = new VM({
+    console: "inherit",
+    timeout: 500,
+    allowAsync: true,
+    sandbox: { req, //todo: isolate req.data, req.reject, req.error, req.message
+      result, //important for READ
+      output, //used for Action Implementation
+      SELECT :  (class extends require('@sap/cds/lib/ql/SELECT')  {then(r,e) {return srv.run(this).then(r,e)}})._api(),  
+      INSERT :  (class extends require('@sap/cds/lib/ql/INSERT')  {then(r,e) {return srv.run(this).then(r,e)}})._api(), 
+      UPDATE :  (class extends require('@sap/cds/lib/ql/UPDATE')  {then(r,e) {return srv.run(this).then(r,e)}})._api(), 
+      CREATE :  (class extends require('@sap/cds/lib/ql/CREATE')  {then(r,e) {return srv.run(this).then(r,e)}})._api(), 
+      //srv: this,
+      JSON },
+  })
+
+  try {
+    await vm.run(code)
+    return output
+  } catch (error) {
+    console.log(error)
+    req.reject("409", "Error in VM")
+  }
+  finally {
+    console.timeEnd(label)
+  }
+  // console.log(req.data)
+}
+/** Generate primary keys for target entity in request */
+async function genid(req) {
+  const { ID } = await cds
+    .tx(req)
+    .run(SELECT.one.from(req.target).columns("max(ID) as ID"))
+  req.data.ID = ID - (ID % 100) + 100 + 1
+}
+
+module.exports = { AdminService }

bookshop/srv/cat-service.cds

@@ -10,6 +10,8 @@ service CatalogService @(path:'/browse') {
     author.name as author
   } excluding { createdBy, modifiedBy };
 
+@readonly entity Publishers as projection on my.Publishers;
+
   @requires: 'authenticated-user'
   action submitOrder ( book: Books:ID, quantity: Integer ) returns { stock: Integer };
   event OrderedBook : { book: Books:ID; quantity: Integer; buyer: String };

bookshop/srv/cat-service.js

@@ -3,7 +3,6 @@ const cds = require('@sap/cds')
 class CatalogService extends cds.ApplicationService { init(){
 
   const { Books } = cds.entities ('sap.capire.bookshop')
-  const { ListOfBooks } = this.entities
 
   // Reduce stock of ordered books if available stock suffices
   this.on ('submitOrder', async req => {
@@ -19,7 +18,7 @@ class CatalogService extends cds.ApplicationService { init(){
   })
 
   // Add some discount for overstocked books
-  this.after ('READ', ListOfBooks, each => {
+  this.after ('READ','ListOfBooks', each => {
     if (each.stock > 111) each.title += ` -- 11% discount!`
   })
 

bookshop/srv/code-extensions.cds

@@ -0,0 +1,11 @@
+//this file is machine-created during cds.build
+namespace sap.capire.bookshop; //> important for reflection
+using from '../db/schema';
+using from '../srv/cat-service';
+using from '../srv/admin-service';
+
+annotate AdminService.Authors with @extension.logic: [{when: 'CREATE', code: 'async function run() {\r\n  \/\/debugger\r\n  \/\/while (true) {}\r\n  \/\/process.exit()\r\n  \/\/1.substring()\r\n  \/\/ let res = await specialselect\r\n  let res = await SELECT.one`title`.from(`Books`).where(`ID=201`)\r\n  let { title } = res\r\n  let Author = req.data\r\n  Author.modifiedBy = \"Custom Event handler changed this!\"\r\n  Author.placeOfDeath = \" --- Somewhere over \" + title + \" --- create in Sandbox\"\r\n  \/\/await this.emit(\"createdAuthor\", { Author })\r\n  return Author\r\n}\r\nrun()\r\n'},
+{when: 'READ', code: 'function getYear(v) {\r\n  return parseInt(v.substr(0, 4))\r\n}\r\nfunction getMonth(v) {\r\n  return parseInt(v.substr(5, 2))\r\n}\r\nfunction getDay(v) {\r\n  return parseInt(v.substr(8, 2))\r\n}\r\n\r\nfunction getAge(from, to) {\r\n  if (from === undefined || from == null) return 0\r\n  if (to === undefined || to == null) to = new Date().toISOString()\r\n  let year = getYear(to) - getYear(from) - 1\r\n  if (\r\n    getMonth(to) > getMonth(from) ||\r\n    (getMonth(to) === getMonth(from) && getDay(to) >= getDay(from))\r\n  ) {\r\n    year++\r\n  }\r\n  return year\r\n}\r\n\r\nconst result_ = Array.isArray(result) ? result : [result]\r\nfor (const row of result_) {\r\n  row.modifiedBy += \" --- read in sandbox\"\r\n  row.age = getAge(row.dateOfBirth, row.dateOfDeath)\r\n}'}
+];
+annotate AdminService.Books with @extension.logic;
+annotate CatalogService.ListOfBooks with @extension.logic;

bookshop/srv/user-service.cds

@@ -1,15 +1,16 @@
 /**
  * Exposes user information
  */
+@requires: 'authenticated-user'
 service UserService {
+
   /**
    * The current user
    */
-  @odata.singleton entity me @cds.persistence.skip {
+  @odata.singleton entity me {
     id     : String; // user id
     locale : String;
     tenant : String;
   }
 
-  action login() returns me;
 }

bookshop/srv/user-service.js

@@ -1,9 +1,4 @@
 const cds = require('@sap/cds')
-module.exports = class UserService extends cds.Service { init(){
-  this.on('READ', 'me', ({ tenant, user, locale }) => ({ id: user.id, locale, tenant }))
-  this.on('login', (req) => {
-    if (req.user._is_anonymous)
-      req._.res.set('WWW-Authenticate','Basic realm="Users"').sendStatus(401)
-    else return this.read('me')
-  })
-}}
+module.exports = cds.service.impl((srv) => {
+  srv.on('READ', 'me', ({ tenant, user, locale }) => ({ id: user.id, locale, tenant }))
+})

bookshop/test/requests.http

@@ -1,10 +1,46 @@
 @server = http://localhost:4004
 @me = Authorization: Basic {{$processEnv USER}}:
+@id = 2000
+
+
+### ------------------------------------------------------------------------
+# Fetch Authors
+GET {{server}}/admin/Authors
+
+### ------------------------------------------------------------------------
+# Fetch one Author
+GET {{server}}/admin/Authors({{id}})
+
+### ------------------------------------------------------------------------
+# Create Author
+POST {{server}}/admin/Authors
+Content-Type: application/json;IEEE754Compatible=true
+
+{
+  "ID": {{id}},
+  "name": "Nick",
+  "placeOfBirth": "Somewhere",
+  "placeOfDeath": "over the Rainbox",
+  "dateOfBirth" : "1975-05-27"
+}
+
+### ------------------------------------------------------------------------
+# rename author via unbound action
+POST {{server}}/admin/renameAuthor
+Content-Type: application/json
+{{me}}
+
+{ "author":{{id}}, "newName":"Super Nick" }
 
 
 ### ------------------------------------------------------------------------
 # Get service info
-GET {{server}}/browse
+GET {{server}}/admin
+{{me}}
+
+### ------------------------------------------------------------------------
+# Get $metadata document
+GET {{server}}/admin/$metadata
 {{me}}
 
 
@@ -23,27 +59,12 @@ GET {{server}}/browse/ListOfBooks?
 {{me}}
 
 
-### ------------------------------------------------------------------------
-# Fetch Authors as admin
-GET {{server}}/admin/Authors?
-  # &$select=name,dateOfBirth,placeOfBirth
-  # &$expand=books($select=title;$expand=currency)
-  # &$filter=ID eq 101
-  # &sap-language=de
-Authorization: Basic alice:
+
+
 
 ### ------------------------------------------------------------------------
-# Create Author
-POST {{server}}/admin/Authors
-Content-Type: application/json;IEEE754Compatible=true
-Authorization: Basic alice:
-
-{
-  "ID": 112,
-  "name": "Shakespeeeeere",
-  "age": 22
-}
-
+# Fetch Books as admin
+GET {{server}}/admin/Books
 
 ### ------------------------------------------------------------------------
 # Create book
@@ -52,12 +73,12 @@ Content-Type: application/json;IEEE754Compatible=true
 Authorization: Basic alice:
 
 {
-  "ID": 2,
-  "title": "Poems : Pocket Poets",
+  "ID": 16,
+  "title": "Deh4",
   "descr": "The Everyman's Library Pocket Poets hardcover series is popular for its compact size and reasonable price which does not compromise content. Poems: Bronte contains poems that demonstrate a sensibility elemental in its force with an imaginative discipline and flexibility of the highest order. Also included are an Editor's Note and an index of first lines.",
   "author": { "ID": 101 },
   "genre": { "ID": 12 },
-  "stock": 5,
+  "stock": -100,
   "price": "12.05",
   "currency": { "code": "USD" }
 }

bookstore/package.json

@@ -8,7 +8,6 @@
     "@capire/common": "*",
     "@capire/data-viewer": "*",
     "@sap/cds": ">=5",
-    "@sap/cds-common-content": "^1.0.0",
     "express": "^4.17.1"
   },
   "cds": {
@@ -27,8 +26,7 @@
         "[production]": { "kind": "enterprise-messaging" }
       },
       "db": {
-        "kind": "sql",
-        "schema_evolution": "auto"
+        "kind": "sql"
       }
     },
     "log": { "service": true }

bookstore/server.js

@@ -19,4 +19,4 @@ module.exports = cds.server
 
 // For didactic reasons in capire
 const { ReviewsService, OrdersService } = cds.requires
-if (!ReviewsService?.credentials && !OrdersService?.credentials) cds.requires.messaging = false
+if (!ReviewsService.credentials && !OrdersService.credentials) cds.requires.messaging = false

bookstore/srv/mashup.cds

@@ -12,11 +12,7 @@ using { sap.capire.bookshop.Books } from '@capire/bookshop';
 using { ReviewsService.Reviews } from '@capire/reviews';
 extend Books with {
   reviews : Composition of many Reviews on reviews.subject = $self.ID;
-
-  @Common.Label : '{i18n>Rating}'
   rating  : Decimal;
-
-  @Common.Label : '{i18n>NumberOfReviews}'
   numberOfReviews : Integer;
 }
 

common/data/sap.common-Countries.csv

@@ -0,0 +1,12 @@
+code;name;descr
+AU;Australia;Commonwealth of Australia
+CA;Canada;Canada
+CN;China;People's Republic of China (PRC)
+FR;France;French Republic
+DE;Germany;Federal Republic of Germany
+IN;India;Republic of India
+IL;Israel;State of Israel
+MM;Myanmar;Republic of the Union of Myanmar
+GB;United Kingdom;United Kingdom of Great Britain and Northern Ireland
+US;United States;United States of America (USA)
+EU;European Union;European Union