//Delete an auction
internal bool DeleteAuctionById(int id)
{
bool successful = false;
var options = new TransactionOptions
{
IsolationLevel = IsolationLevel.RepeatableRead
};
ImageHandler imageHandler = new ImageHandler();
bool deleted = false;
//queries statements
string deleteAuction = "DELETE FROM Auction WHERE id = @Id";
string deleteImage = "DELETE FROM Image WHERE Auction_Id = @Id";
string deleteBid = "DELETE FROM Bid WHERE Auction_Id = @Id";
string getUser = "******";
using (var scope = new TransactionScope(TransactionScopeOption.Required, options)) {
using (var conn = new SqlConnection(_connectionString))
{
try
{
conn.Open();
using (var scopeGetAndCalc = new TransactionScope(TransactionScopeOption.Required, options))
{
using (var DBAuction = new SqlCommand(getUser, conn))
{
int user_id = 0;
DBAuction.Parameters.AddWithValue("@Id", id);
SqlDataReader reader = DBAuction.ExecuteReader();
while (reader.Read())
{
user_id = reader.GetInt32(0);
}
reader.Close();
imageHandler.DeleteAuctionFolder(id, user_id); //delete auctionfolder with images
}
using (var DBAuction = new SqlCommand(deleteImage, conn))
{
DBAuction.Parameters.AddWithValue("@Id", id);
DBAuction.ExecuteNonQuery();
}
using (var DBAuction = new SqlCommand(deleteBid, conn))
{
DBAuction.Parameters.AddWithValue("@Id", id);
DBAuction.ExecuteNonQuery();
}
using (var DBAuctions = new SqlCommand(deleteAuction, conn))
{ //add the @Id and the id value from the parameters
DBAuctions.Parameters.AddWithValue("@Id", id);
DBAuctions.ExecuteNonQuery();
}
scopeGetAndCalc.Complete(); //close nested transaction
successful = true;
}
}
catch (Exception e)
{
throw e;
}
finally
{
conn.Close();
}
}
scope.Complete();//close whole transaction
}
return(successful);
}
/// <summary>
/// Inserts pictures into database and folders.
/// </summary>
/// <param name="images"></param>
/// <returns></returns>
public bool InsertPictures(List <ImageData> images)
{
bool successful = false;
//Set isolation level
var options = new TransactionOptions
{
IsolationLevel = IsolationLevel.ReadCommitted
};
string insertImage = "INSERT INTO Image (Auction_Id, Img_URL, DateAdded, Description, Name) " +
"VALUES(@auctionId,@imgUrl,@dateAdded, @description, @name)";
//Transaction
using (var scope = new TransactionScope(TransactionScopeOption.Required, options))
{
using (var conn = new SqlConnection(_connectionString))
{
try
{
//Open connection to database.
conn.Open();
foreach (ImageData image in images)
{
using (var cmdIImage = new SqlCommand(insertImage, conn))
{
cmdIImage.Parameters.AddWithValue("auctionId", image.AuctionId);
cmdIImage.Parameters.AddWithValue("imgUrl", image.ImgUrl);
cmdIImage.Parameters.AddWithValue("dateAdded", image.DateAdded);
cmdIImage.Parameters.AddWithValue("description", image.Description);
cmdIImage.Parameters.AddWithValue("name", image.FileName);
cmdIImage.ExecuteScalar();
}
}
ImageHandler iHandler = new ImageHandler();
bool succsesful = iHandler.InsertPicturesToFolder(images);
if (!succsesful)
{
scope.Dispose();
return(successful = false);
}
//If everything went well, will commit.
scope.Complete();
}
catch (TransactionAbortedException e)
{
successful = false;
throw e;
}
finally
{
scope.Dispose();
}
}
}
return(successful);
}
