Initial implementation of salemodel

src/core/sale.cpp

@@ -31,6 +31,13 @@ int Sale::sumInCents()
     return sum;
 }
 
+std::string Sale::sumAsString()
+{
+    std::stringstream sumStream;
+    sumStream << std::right << std::setw(12) << std::showbase << std::put_money(sumInCents(), false);
+    return sumStream.str();
+}
+
 std::string Sale::getTimestamp() { return timestamp_; }
 
 void Sale::setTimestamp(const std::string& timestamp) { timestamp_ = timestamp; }