public string InsertOrder(clsOrder prOrder)
{ // insert
try
{
clsBook _tempBook = GetCurrentBook(prOrder.FKBookID);
if (_tempBook.stockLevel < prOrder.qty)
{
return("Sorry but there is insufficient stock for this order, please review the stock level change.");
}
int lcRecCount = clsDbConnection.Execute("INSERT INTO `order` " +
"(orderDate, custPhone, custName, qty, pricePerItem, FKBookID) " +
"VALUES (@orderDate, @custPhone, @custName, @qty, @pricePerItem, @FKBookID)",
prepareOrderParameters(prOrder));
int lcRecCount2 = clsDbConnection.Execute("UPDATE book SET " +
"stockLevel = stocklevel - @qty " +
"WHERE bookID = @FKBookID",
prepareStockUpdateParameters(prOrder));
if (lcRecCount == 1 && lcRecCount2 == 1)
{
return("Order Confirmed");
}
else
{
return("Error, contact developer " + lcRecCount);
}
}
catch (Exception ex)
{
return(ex.GetBaseException().Message);
}
}
private Dictionary <string, object> prepareBookParameters(clsBook prBook)
{
Dictionary <string, object> par = new Dictionary <string, object>(10)
{
{ "bookName", prBook.bookName },
{ "author", prBook.author },
{ "bookType", prBook.bookType },
{ "price", prBook.price },
{ "lastModified", prBook.lastModified },
{ "stockLevel", prBook.stockLevel },
{ "publisher", prBook.publisher },
{ "description", prBook.description },
{ "ebookFormat", prBook.ebookFormat },
{ "hardback", prBook.hardback },
{ "genreName", prBook.genreName },
{ "bookID", prBook.bookID }
};
return(par);
}
public string UpdateBook(clsBook prBook)
{ // update
if (prBook.lastModified == (DateTime)(GetCurrentBook(prBook.bookID).lastModified))
{
prBook.lastModified = DateTime.Now;
}
else
{
return("Current book out of date, please review changes.");
}
try
{
int lcRecCount = clsDbConnection.Execute("UPDATE book SET " +
"bookName = @bookName," +
"author = @author," +
"bookType = @bookType," +
"price = @price," +
"lastModified = @lastModified," +
"stockLevel = @stockLevel," +
"publisher = @publisher," +
"description = @description, " +
"ebookFormat = @ebookFormat," +
"hardback = @hardback " +
"WHERE bookID = @bookID",
prepareBookParameters(prBook));
if (lcRecCount == 1)
{
return("One book updated");
}
else
{
return("Unexpected book update count: " + lcRecCount);
}
}
catch (Exception ex)
{
return(ex.GetBaseException().Message);
}
}
public string InsertBook(clsBook prBook)
{ // insert
try
{
int lcRecCount = clsDbConnection.Execute("INSERT INTO book " +
"(bookName, author, bookType, price, lastModified, stockLevel, publisher, description, ebookFormat, hardback, FKGenreName) " +
"VALUES (@bookName, @author, @bookType, @price, @lastModified, @stockLevel, @publisher, @description, @ebookFormat, @hardback, @genreName)",
prepareBookParameters(prBook));
if (lcRecCount == 1)
{
return("One book inserted");
}
else
{
return("Unexpected book insert count: " + lcRecCount);
}
}
catch (Exception ex)
{
return(ex.GetBaseException().Message);
}
}