// Method to retrieve all the models from the DB
public List <DbModelEmail> GetAllEmailDataFromDb()
{
List <DbModelEmail> list = new List <DbModelEmail>();
using (var connection = new MSDSC.SqlConnection("Server=(localdb)\\MSSQLLocalDB;Database=DBEmailScheduler;Trusted_Connection=True;"))
{
connection.Open();
if (connection.State.Equals(SD.ConnectionState.Open))
{
using (var command = new MSDSC.SqlCommand())
{
command.Connection = connection;
command.CommandType = SD.CommandType.Text;
command.CommandText = @"
SELECT * FROM dbo.tb_emails;
" ;
MSDSC.SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
bool IsOpened = (reader.GetInt32(2) != 0) ? true : false;
bool IsFirstEmailSent = (reader.GetInt32(3) != 0) ? true : false;
DbModelEmail dbModelEmail = new DbModelEmail(reader.GetString(1), IsOpened, IsFirstEmailSent, reader.GetInt32(4));
list.Add(dbModelEmail);
}
}
}
}
return(list);
}
// Method to update the DB with new model parameteres on the basis of email
public void UpdateDb(DbModelEmail model)
{
using (var connection = new MSDSC.SqlConnection("Server=(localdb)\\MSSQLLocalDB;Database=DBEmailScheduler;Trusted_Connection=True;"))
{
connection.Open();
if (connection.State.Equals(SD.ConnectionState.Open))
{
using (var command = new MSDSC.SqlCommand())
{
MSDSC.SqlParameter param;
command.Connection = connection;
command.CommandType = SD.CommandType.Text;
command.CommandText = @"
UPDATE dbo.tb_emails
SET isFirstEmailSent = @isFirstEmailSent, isOpened = @isEmailOpened, remainingReminderDays = @remainingReminderDays
WHERE emailID = @emailID" ;
int IsOpened = (model.IsOpened == true) ? 1 : 0;
int IsFirstEmailSent = (model.IsFirstEmailSent == true) ? 1 : 0;
param = new MSDSC.SqlParameter("@isFirstEmailSent", SD.SqlDbType.Int);
param.Value = IsFirstEmailSent;
command.Parameters.Add(param);
param = new MSDSC.SqlParameter("@isEmailOpened", SD.SqlDbType.Int);
param.Value = IsOpened;
command.Parameters.Add(param);
param = new MSDSC.SqlParameter("@remainingReminderDays", SD.SqlDbType.Int);
param.Value = model.RemainingReminderDays;
command.Parameters.Add(param);
param = new MSDSC.SqlParameter("@emailID", SD.SqlDbType.NVarChar);
param.Value = model.Email;
command.Parameters.Add(param);
int affectedRows = command.ExecuteNonQuery();
System.Console.WriteLine("DB Updated! Number of rows affected : " + affectedRows);
}
}
}
}
