First push

bookshop/handlers/AdminService.Authors.CREATE.js

@@ -1,13 +1,16 @@
+
 async function run() {
   //debugger
   //while (true) {}
   //process.exit()
   //1.substring()
-  let res = await cds.read(SELECT.one`title`.from(`Books`).where(`ID=201`))
+  // let res = await specialselect
+  let res = await SELECT.one`title`.from(`Books`).where(`ID=201`)
   let { title } = res
-  const data = req.data
-  data.modifiedBy = "Custom Event handler read changed this!"
-  data.placeOfDeath = " --- Somewhere over " + title + " --- create in Sandbox"
-  return data
+  let Author = req.data
+  Author.modifiedBy = "Custom Event handler changed this!"
+  Author.placeOfDeath = " --- Somewhere over " + title + " --- create in Sandbox"
+  //await this.emit("createdAuthor", { Author })
+  return Author
 }
-output = run()
+run()

bookshop/handlers/AdminService.Authors.READ.js

@@ -1,5 +1,28 @@
+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
+}
+
 const result_ = Array.isArray(result) ? result : [result]
 for (const row of result_) {
   row.modifiedBy += " --- read in sandbox"
-  row.age = 27
+  row.age = getAge(row.dateOfBirth, row.dateOfDeath)
 }

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()