re cap

.env

@@ -1 +1,8 @@
-cds.features.snapi = y
+cds.features.snapi = true
+cds.odata.version = v4
+cds.odata.containment = true
+cds.odata.proxies = true
+cds.odata.format = structured
+cds.cdsc.beta.uniqueconstraints = true
+cds.cdsc.beta.aspectCompositions = true
+cds.cdsc.severities.unexpected-key = info

ext/.eslintrc

@@ -1,24 +0,0 @@
-{
-    "extends": "eslint:recommended",
-    "env": {
-        "node": true,
-        "es6": true,
-        "jest": true
-    },
-    "parserOptions": {
-        "ecmaVersion": 2017
-    },
-    "globals": {
-        "SELECT": true,
-        "INSERT": true,
-        "UPDATE": true,
-        "DELETE": true,
-        "CREATE": true,
-        "DROP": true,
-        "cds": true
-    },
-    "rules": {
-        "no-console": "off",
-        "require-atomic-updates": "off"
-    }
-}

ext/.gitignore

@@ -1,30 +0,0 @@
-# CAP ext
-_out
-*.db
-connection.properties
-default-*.json
-gen/
-node_modules/
-package-lock.json
-target/
-
-# Web IDE, App Studio
-.che/
-.gen/
-
-# MTA
-*_mta_build_tmp
-*.mtar
-mta_archives/
-
-# Other
-.DS_Store
-*.orig
-*.log
-
-*.iml
-*.flattened-pom.xml
-
-# IDEs
-.vscode
-.idea

ext/db/schema.cds

@@ -1,6 +0,0 @@
-using { sap.capire.bookshop.Books } from '@capire/bookshop';
-
-extend Books with {
-  ISBN : String;
-  discount : Decimal @assert.range:[0,1];
-}

ext/package.json

@@ -1,19 +0,0 @@
-{
-  "name": "ext",
-  "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
-  "license": "UNLICENSED",
-  "private": true,
-  "dependencies": {
-    "@capire/bookshop": "../bookshop",
-    "@sap/cds": "^4",
-    "express": "^4"
-  },
-  "devDependencies": {
-    "sqlite3": "^4"
-  },
-  "scripts": {
-    "start": "npx cds run"
-  }
-}

ext/server.js

@@ -1,40 +0,0 @@
-const cds = require ('@sap/cds')
-const path = require ('path')
-const fs = require ('fs')
-const protected = {db:1,messaging:1,auth:1}
-const { isfile } = cds.utils
-
-cds.on('served', ()=>{
-  for (let each of cds.services) {
-    if (each.name in protected) continue
-    // search for local srv/<each>.js files and if exist
-    // activate them in a service extension sandbox
-    const impl = isfile (path.resolve('srv/'+each.name+'.js'))
-    if (impl) activate_sandboxed (each,impl)
-  }
-})
-
-function activate_sandboxed (srv,impl) {
-  console.log (`[cds] - extending ${srv.name} with sandboxed:`, {impl:path.relative(process.cwd(),impl)})
-  const src = fs.readFileSync (impl)
-  const sandbox = Object.keys(global).filter(name => name !== 'cds')
-  const fn = new Function (
-    'module','cds','global','process', ...sandbox,
-    src
-  )
-  // restricted sandboxed variant of 'module' and 'cds'
-  const module = {}
-  const cds = {
-    service: {
-      impl: fn=>fn
-    }
-  }
-  fn (module,cds,undefined,undefined, ...sandbox.map((()=>(undefined))))
-  if (typeof module.exports === 'function') try {
-    module.exports.call (srv,srv)
-  } catch (e) {
-    console.log (e)
-  }
-}
-
-module.exports = cds.server

ext/srv/AdminService.js

@@ -1,10 +0,0 @@
-module.exports = cds.service.impl(function(){
-
-  this.before(['CREATE','UPDATE'],'Books', req => {  //> ....
-    const book = req.data
-    if (book.stock < 10 && book.discount > 0.5) {
-      req.error('Hey, da sind so wenig übrig, die wollen wir nicht zu billig verticken')
-    }
-  })
-
-})

ext/srv/CatalogService.js

@@ -1,9 +0,0 @@
-console.log ('Böses Zeug', global, process, cds)
-// process.exit()
-// const fs = require('fs')
-// cds.run('Böses Zeugs')
-// SELECT.from ('Foo')
-
-module.exports = cds.service.impl(function(){
-  this.after('READ','Books', each => each.title += ' (served through sandbox)')
-})

orders/.env

@@ -0,0 +1,8 @@
+cds.features.snapi = true
+cds.odata.version = v4
+cds.odata.containment = true
+cds.odata.proxies = true
+cds.odata.format = structured
+cds.cdsc.beta.uniqueconstraints = true
+cds.cdsc.beta.aspectCompositions = true
+cds.cdsc.severities.unexpected-key = info

recap/assoc-paths-w-filters.cds

@@ -0,0 +1,5 @@
+using { sap.capire.bookshop.Authors } from '@capire/bookshop';
+
+define view Foo as select from Authors {
+  ID, name, books[where title like 'Cat%'].currency.code
+};

recap/extend-w-named-aspects.cds

@@ -0,0 +1,27 @@
+using { User, cuid, managed } from '@sap/cds/common';
+
+// Looks like inheritance, but isn't
+entity Foo @bar : cuid, managed { bar:Car; }
+
+// It's just syntactical sugar for Aspects
+entity Boo {}
+extend Boo with cuid;
+extend Boo with managed;
+extend Boo with { bar:Car; }
+annotate Boo with @bar;
+
+// There's close to no limits
+entity Moo : Foo {}
+entity Zoo {}; extend Zoo with Foo;
+
+// This one will apply to all uses above
+type Car : String;
+annotate Car with @car;
+
+// And these to all uses here and wherever else
+extend managed with {
+  notes : String;
+}
+
+// CDS is built with CDS
+annotate cds.UUID with @odata.Type: 'Edm.Integer';

recap/extending-views.cds

@@ -0,0 +1,10 @@
+using { CatalogService } from '@capire/bookshop';
+
+extend sap.capire.bookshop.Books with {
+  ISBN : String;
+}
+
+/** your docs go here */
+extend projection CatalogService.Books with {
+  ISBN
+}