private DiscountUntilExpired ReadDiscountUntilExpiredFromDatabase(int id)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("SELECT * FROM DiscountPolicies WHERE ID = " + id, connection))
{
IDataReader dr = command.ExecuteReader();
if (dr.Read())
{
DiscountUntilExpired discountUntilExpired = new DiscountUntilExpired();
discountUntilExpired.Id = (int) dr["ID"];
DateTime from = (DateTime) dr["FromTo_Start"];
DateTime to = (DateTime) dr["FromTo_End"];
discountUntilExpired.FromTo = new DateSpan {StartDate = from, EndDate = to};
Percentage percentage = new Percentage((int)dr["DiscountPercentage"]);
discountUntilExpired.DiscountPercentage = percentage;
return discountUntilExpired;
}
throw new ArgumentException("no id " + id + " found");
}
}
}
private PromoDay ReadPromoDayFromDatabase(int id)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("SELECT * FROM DiscountPolicies WHERE ID = " + id, connection))
{
IDataReader dr = command.ExecuteReader();
if (dr.Read())
{
PromoDay promoDay = new PromoDay();
promoDay.Id = (int)dr["ID"];
Percentage percentage = new Percentage((int)dr["DiscountPercentage"]);
promoDay.DiscountPercentage = percentage;
promoDay.DayDate = (DateTime)dr["DayDate"];
return promoDay;
}
throw new ArgumentException("no id " + id + " found");
}
}
}
protected bool Equals(Percentage other)
{
return value == other.value;
}