/// <summary>
/// If file already exists in the database
/// </summary>
/// <param name="userName"></param>
/// <param name="filePath"></param>
/// <returns>true/false</returns>
public bool fileAlreadyExist(string userName,string filePath)
{
DataBaseConn dbconn = new DataBaseConn(1);
try
{
SqlConnection conn = dbconn.DBConnect();
string queryString = "SELECT * FROM dbo.FilesInfo WHERE UserName =@UserName AND FilePath = @FilePath";
SqlCommand command = new SqlCommand(queryString, conn);
command.Parameters.AddWithValue("@UserName", userName);
command.Parameters.AddWithValue("@FilePath", filePath);
SqlDataReader reader = command.ExecuteReader();
if (reader.Read())
{
return true;
}
else
{
return false;
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return false;
}
finally
{
dbconn.DBClose();
}
}
/// <summary>
/// insert new file data into database
/// </summary>
/// <param name="userName"></param>
/// <param name="fileName"></param>
/// <param name="filePath"></param>
/// <param name="hashVaule"></param>
/// <param name="timeStamp"></param>
/// <returns></returns>
public bool insertNewFileData(string userName, string fileName, string filePath, string hashVaule, DateTime timeStamp)
{
DataBaseConn dbconn = new DataBaseConn(1);
try
{
SqlConnection conn = dbconn.DBConnect();
string queryString = "INSERT INTO dbo.FilesInfo"+
" (FileName, TimeStamp, HashValue, FilePath, UserName) VALUES"+
" (@FileName, @TimeStamp, @HashValue, @FilePath, @UserName)";
SqlCommand command = new SqlCommand(queryString, conn);
command.Parameters.AddWithValue("@UserName", userName);
command.Parameters.AddWithValue("@FilePath", filePath);
command.Parameters.AddWithValue("@FileName", fileName);
command.Parameters.AddWithValue("@TimeStamp", timeStamp);
command.Parameters.AddWithValue("@HashValue", hashVaule);
Int32 rowsAffected = command.ExecuteNonQuery();
Console.WriteLine("RowsAffected: {0}", rowsAffected);
if (rowsAffected == 0)
{
return false;
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return false;
}
finally
{
dbconn.DBClose();
}
return true;
}
/// <summary>
/// update file data in the databse
/// </summary>
/// <param name="userName"></param>
/// <param name="filePath"></param>
/// <param name="hashVaule"></param>
/// <param name="timeStamp"></param>
/// <returns></returns>
public bool updateFilesData(string userName, string filePath, string hashVaule, DateTime timeStamp)
{
DataBaseConn dbconn = new DataBaseConn(1);
try
{
SqlConnection conn = dbconn.DBConnect();
string queryString = "UPDATE Users SET TimeStamp=@TimeStamp, HashValue=@HashValue WHERE UserName=@UserName AND FilePath=@FilePath ";
SqlCommand command = new SqlCommand(queryString, conn);
command.Parameters.AddWithValue("@TimeStamp", timeStamp);
command.Parameters.AddWithValue("@HashValue", hashVaule);
command.Parameters.AddWithValue("@UserName", userName);
command.Parameters.AddWithValue("@FilePath", filePath);
Int32 rowsAffected = command.ExecuteNonQuery();
Console.WriteLine("RowsAffected: {0}", rowsAffected);
if (rowsAffected == 0)
{
return false;
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return false;
}
finally
{
dbconn.DBClose();
}
return true;
}
