brmbar v3 ItemEdit: Support for saving changes and restocking

brmbar3/TODO

@@ -11,10 +11,11 @@
 	+ Use for withdrawal
 / Restocking view (Stock management)
 	+ Item picker with edit button
-	/ Item editor (name, buy price, sale price, quantity)
+	+ Item editor (name, buy price, sale price, quantity)
-	/ Item-barcode assignment
+	+ Item-barcode assignment
+	- Support for adding new items
 + Alphanumeric manual entry support
-	- Use in item editor
+	+ Use in item editor
 - Withdrawal for brmbar receipts
 	1. User responsible
 	2. Amount and description
@@ -28,6 +29,7 @@
 	- Delete user
 	- Forbid negative credit
 - Stock management
+	- Allow overriding item barcodes
 	- Group quantity changes in a single transaction (for single receipt, many stock)
 	- Support for directly paying for stocked items from user credit
 - Statistics

brmbar3/brmbar-gui-qt4.py

@@ -106,6 +106,19 @@ class ShopAdapter(QtCore.QObject):
 	def addBarcode(self, dbid, barcode):
 		return brmbar.Account.load(db, id = dbid).add_barcode(barcode)
 
+	@QtCore.Slot('QVariant', 'QVariant', result='QVariant')
+	def saveItem(self, dbid, invmap):
+		acct = brmbar.Account.load(db, id = dbid)
+		buy, sell = acct.currency.rates(currency)
+		if (sell != invmap["price"]):
+			acct.currency.update_sell_rate(currency, invmap["price"])
+		if (buy != invmap["buy_price"]):
+			acct.currency.update_buy_rate(currency, invmap["buy_price"])
+		cost = ""
+		if (acct.balance() < int(invmap["balance"])):
+			cost = shop.buy_for_cash(acct, invmap["balance"] - acct.balance())
+		return { "dbid": dbid, "cost": currency.str(cost) }
+
 db = psycopg2.connect("dbname=brmbar")
 shop = brmbar.Shop.new_with_defaults(db)
 currency = shop.currency

brmbar3/brmbar-gui-qt4/ItemEdit.qml

@@ -299,8 +299,12 @@ Item {
         text: "Save"
         onButtonClick: {
 	    info["name"] = name
-            shop.saveAccount(dbid, info)
+            var res = shop.saveItem(dbid, info)
-            status_text.setStatus("Changes saved", "#ffff7c")
+	    if (res.cost) {
+		status_text.setStatus("Restocked! Take " + res.cost + " from the money box.", "#ffff7c")
+	    } else {
+		status_text.setStatus("Changes saved", "#ffff7c")
+	    }
             loadPage("StockMgmt")
         }
     }