public ArrayList getPastCoolingData(int fanNumber, Int64 startTicks, Int64 endTicks)
{
ArrayList result = new ArrayList();
DateTime startDate = new DateTime(startTicks);
var start = startDate.Date;
DateTime endDate = new DateTime(endTicks);
var end = endDate.Date;
SqlConnection conn = new System.Data.SqlClient.SqlConnection();
try
{
string connectionString = ConfigurationManager.ConnectionStrings["KnightWatchDBConnection"].ConnectionString;
conn.ConnectionString = connectionString;
conn.Open();
String sqlQuery = "select cool_demand, cool_output, entry_date, entry_time from Fan f where fan_number = @fan_number and entry_date between @startDate and @endDate";
SqlCommand command = new SqlCommand(sqlQuery, conn);
SqlParameter fanNumb = command.Parameters.AddWithValue("@fan_number", fanNumber);
SqlParameter start_d = command.Parameters.AddWithValue("@startDate", start);
SqlParameter end_d = command.Parameters.AddWithValue("@endDate", end);
using (SqlDataReader commandReader = command.ExecuteReader())
{
while (commandReader.Read())
{
String dateOnly = commandReader["entry_date"].ToString();
String timeOnly = commandReader["entry_time"].ToString();
DateTime d = DateTime.Parse(dateOnly.Substring(0, dateOnly.IndexOf(" ")) + " " + timeOnly);
//result.Add(d);
if (DateTime.Compare(d, startDate) >= 0 && DateTime.Compare(d, endDate) <= 0)
{
CoolingData cooling = new CoolingData();
cooling.coolDemand = Double.Parse(commandReader["cool_demand"].ToString());
cooling.coolOutput = Double.Parse(commandReader["cool_output"].ToString());
cooling.ratio = cooling.coolDemand / cooling.coolOutput;
result.Add(cooling);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
conn.Close();
return result;
}
public CoolingData getCurrentCoolingData(int fanNumber)
{
CoolingData cooling = new CoolingData();
SqlConnection conn = new System.Data.SqlClient.SqlConnection();
try
{
string connectionString = ConfigurationManager.ConnectionStrings["KnightWatchDBConnection"].ConnectionString;
conn.ConnectionString = connectionString;
conn.Open();
String sqlQuery = "select cool_demand, cool_output from Fan f where fan_number = @fan_number and entry_date = (select max(entry_date) from Fan where fan_number =@fan_number) and entry_time = (select max(entry_time) from fan f1 where f1.entry_date = f.entry_date and fan_number = @fan_number)";
SqlCommand command = new SqlCommand(sqlQuery, conn);
SqlParameter fanNumb = command.Parameters.AddWithValue("@fan_number", fanNumber);
SqlDataReader commandReader = command.ExecuteReader();
while (commandReader.Read())
{
cooling.coolDemand = Double.Parse(commandReader["cool_demand"].ToString());
cooling.coolOutput = Double.Parse(commandReader["cool_output"].ToString());
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
conn.Close();
cooling.ratio = cooling.coolDemand / cooling.coolOutput;
return cooling;
}
