Rename amount -> quantity

Author: danjoa

bookshop/app/vue/app.js

@@ -10,7 +10,7 @@ const books = new Vue ({
     data: {
         list: [],
         book: undefined,
-        order: { amount:1, succeeded:'', failed:'' }
+        order: { quantity:1, succeeded:'', failed:'' }
     },
 
     methods: {
@@ -26,18 +26,18 @@ const books = new Vue ({
             const book = books.book = books.list [eve.currentTarget.rowIndex-1]
             const res = await GET(`/Books/${book.ID}?$select=descr,stock,image`)
             Object.assign (book, res.data)
-            books.order = { amount:1 }
+            books.order = { quantity:1 }
             setTimeout (()=> $('form > input').focus(), 111)
         },
 
         async submitOrder () {
-            const {book,order} = books, amount = parseInt (order.amount) || 1 // REVISIT: Okra should be less strict
+            const {book,order} = books, quantity = parseInt (order.quantity) || 1 // REVISIT: Okra should be less strict
             try {
-                const res = await POST(`/submitOrder`, { amount, book: book.ID })
+                const res = await POST(`/submitOrder`, { quantity, book: book.ID })
                 book.stock = res.data.stock
-                books.order = { amount, succeeded: `Successfully ordered ${amount} item(s).` }
+                books.order = { quantity, succeeded: `Successfully ordered ${quantity} item(s).` }
             } catch (e) {
-                books.order = { amount, failed: e.response.data.error.message }
+                books.order = { quantity, failed: e.response.data.error.message }
             }
         }
 

bookshop/app/vue/index.html

@@ -48,7 +48,7 @@ <h1> {{ document.title }} </h1>
             &nbsp;&nbsp; {{ book.stock }} in stock
         </label>
         <form @submit.prevent="submitOrder" style="float:right; display:flex; flex-direction:row-reverse">
-            <input type="number" v-model="order.amount" v-bind:class="{ failed: order.failed }" style="width:5em">
+            <input type="number" v-model="order.quantity" v-bind:class="{ failed: order.failed }" style="width:5em">
             <input type="submit" value="Order:" class="muted-button">
         </form>
         <h4> {{ book.title }} </h4>

bookshop/srv/cat-service.cds

@@ -11,6 +11,6 @@ service CatalogService @(path:'/browse') {
   } excluding { createdBy, modifiedBy };
 
   @requires: 'authenticated-user'
-  action submitOrder ( book: Books:ID, amount: Integer ) returns { stock: Integer };
-  event OrderedBook : { book: Books:ID; amount: Integer; buyer: String };
+  action submitOrder ( book: Books:ID, quantity: Integer ) returns { stock: Integer };
+  event OrderedBook : { book: Books:ID; quantity: Integer; buyer: String };
 }

bookshop/srv/cat-service.js

@@ -5,14 +5,14 @@ class CatalogService extends cds.ApplicationService { init(){
 
   // Reduce stock of ordered books if available stock suffices
   this.on ('submitOrder', async req => {
-    const {book,amount} = req.data
+    const {book,quantity} = req.data
     let {stock} = await SELECT `stock` .from (Books,book)
-    if (stock >= amount) {
-      await UPDATE (Books,book) .with (`stock -=`, amount)
-      await this.emit ('OrderedBook', { book, amount, buyer:req.user.id })
+    if (stock >= quantity) {
+      await UPDATE (Books,book) .with (`stock -=`, quantity)
+      await this.emit ('OrderedBook', { book, quantity, buyer:req.user.id })
       return { stock }
     }
-    else return req.error (409,`${amount} exceeds stock for book #${book}`)
+    else return req.error (409,`${quantity} exceeds stock for book #${book}`)
   })
 
   // Add some discount for overstocked books

bookshop/test/requests.http

@@ -71,7 +71,7 @@ POST {{server}}/browse/submitOrder
 Content-Type: application/json
 {{me}}
 
-{ "book":201, "amount":5 }
+{ "book":201, "quantity":5 }
 
 
 ### ------------------------------------------------------------------------

fiori/srv/mashup.js

@@ -27,11 +27,11 @@ module.exports = async()=>{ // called by server.js
   // Create an order with the OrdersService when CatalogService signals a new order
   //
   CatalogService.on ('OrderedBook', async (msg) => {
-    const { book, amount, buyer } = msg.data
+    const { book, quantity, buyer } = msg.data
     const { title, price } = await db.tx(msg).read (Books, book, b => { b.title, b.price })
     return OrdersService.tx(msg).create ('Orders').entries({
       OrderNo: 'Order at '+ (new Date).toLocaleString(),
-      Items: [{ product:{ID:`${book}`}, title, price, amount }],
+      Items: [{ product:{ID:`${book}`}, title, price, quantity }],
       buyer, createdBy: buyer
     })
   })
@@ -51,9 +51,9 @@ module.exports = async()=>{ // called by server.js
   //
   OrdersService.on ('OrderChanged', (msg) => {
     console.debug ('> received:', msg.event, msg.data)
-    const { product, deltaAmount } = msg.data
+    const { product, deltaQuantity } = msg.data
     return UPDATE (Books) .where ('ID =', product)
-    .and ('stock >=', deltaAmount)
-    .set ('stock -=', deltaAmount)
+    .and ('stock >=', deltaQuantity)
+    .set ('stock -=', deltaQuantity)
   })
 }

orders/app/orders/fiori-service.cds

@@ -74,10 +74,10 @@ annotate OrdersService.Orders_Items with @(
 			{Value: product_ID, Label:'Product ID'},
 			{Value: title, Label:'Product Title'},
 			{Value: price, Label:'Unit Price'},
-			{Value: amount, Label:'Quantity'},
+			{Value: quantity, Label:'Quantity'},
 		],
 		Identification: [ //Is the main field group
-			{Value: amount, Label:'Amount'},
+			{Value: quantity, Label:'Quantity'},
 			{Value: title, Label:'Product'},
 			{Value: price, Label:'Unit Price'},
 		],
@@ -86,7 +86,7 @@ annotate OrdersService.Orders_Items with @(
 		],
 	},
 ) {
-	amount @(
+	quantity @(
 		Common.FieldControl: #Mandatory
 	);
 };

orders/db/data/sap.capire.orders-Orders_Items.csv

@@ -1,4 +1,4 @@
-ID;up__ID;amount;product_ID;title;price
+ID;up__ID;quantity;product_ID;title;price
 58040e66-1dcd-4ffb-ab10-fdce32028b79;7e2f2640-6866-4dcf-8f4d-3027aa831cad;1;201;Wuthering Heights;11.11
 64e718c9-ff99-47f1-8ca3-950c850777d4;7e2f2640-6866-4dcf-8f4d-3027aa831cad;1;271;Catweazle;15
 e9641166-e050-4261-bfee-d1e797e6cb7f;64e718c9-ff99-47f1-8ca3-950c850777d4;2;252;Eleonora;28

orders/db/schema.cds

@@ -12,7 +12,7 @@ entity Orders_Items {
   key ID    : UUID;
   up_       : Association to Orders;
   product   : Association to Products @assert.integrity:false; // REVISIT: this is a temporary workaround for a glitch in cds-runtime
-  amount    : Integer;
+  quantity  : Integer;
   title     : String; //> intentionally replicated as snapshot from product.title
   price     : Double;
 }

orders/srv/orders-service.js

@@ -7,30 +7,30 @@ class OrdersService extends cds.ApplicationService {
 
     this.before ('UPDATE', 'Orders', async function(req) {
       const { ID, Items } = req.data
-      if (Items) for (let { product_ID, amount } of Items) {
-        const { amount:before } = await cds.tx(req).run (
-          SELECT.one.from (OrderItems, oi => oi.amount) .where ({up__ID:ID, product_ID})
+      if (Items) for (let { product_ID, quantity } of Items) {
+        const { quantity:before } = await cds.tx(req).run (
+          SELECT.one.from (OrderItems, oi => oi.quantity) .where ({up__ID:ID, product_ID})
         )
-        if (amount != before) await this.orderChanged (product_ID, amount-before)
+        if (quantity != before) await this.orderChanged (product_ID, quantity-before)
       }
     })
 
     this.before ('DELETE', 'Orders', async function(req) {
       const { ID } = req.data
       const Items = await cds.tx(req).run (
-        SELECT.from (OrderItems, oi => { oi.product_ID, oi.amount }) .where ({up__ID:ID})
+        SELECT.from (OrderItems, oi => { oi.product_ID, oi.quantity }) .where ({up__ID:ID})
       )
-      if (Items) await Promise.all (Items.map(it => this.orderChanged (it.product_ID, -it.amount)))
+      if (Items) await Promise.all (Items.map(it => this.orderChanged (it.product_ID, -it.quantity)))
     })
 
     return super.init()
   }
 
   /** order changed -> broadcast event */
-  orderChanged (product, deltaAmount) {
+  orderChanged (product, deltaQuantity) {
     // Emit events to inform subscribers about changes in orders
-    console.log ('> emitting:', 'OrderChanged', { product, deltaAmount })
-    return this.emit ('OrderChanged', { product, deltaAmount })
+    console.log ('> emitting:', 'OrderChanged', { product, deltaQuantity })
+    return this.emit ('OrderChanged', { product, deltaQuantity })
   }
 
 }