//Objective: Find ItemPairs
//Create list that pairs up items
public static List <ItemPair> getItemPair(int testID, List <ItemPair> itemPairList)
{
// Get all items from the database
List <Item> itemList = new List <Item>();
string errorString = "Could not load items: ";
ItemList.getItems(itemList, testID, ref errorString);
// Pair up items
for (int j = 0; j <= itemList.Count - 2; j++)
{
//// Loops through and pairs up item starting at count +1
for (int i = j + 1; i <= itemList.Count - 1; i++)
{
// Creates new itempair instance
ItemPair itemInsta = new ItemPair();
// Populates first parameter of itemPair
itemInsta.Item1 = itemList[j];
itemInsta.Item2 = itemList[i];
itemPairList.Add(itemInsta);
}
}
return(itemPairList);
}
/// <summary>
/// Randmizes the number that will be used to assign itempairs to populate radio buttons
/// </summary>
public static List <Item> itemToAssign(ItemPair itemPair, List <Item> itemToAssign, Test currentTest)
{
List <Item> randomItemList = new List <Item>();
// Assign "Undecided" as an item
Item unChoice = new Item(0, "Undecided", itemPair.Item1.TestID);
//Updated for Custom Test Presentation
//If the custom test has the shuffle option selected, shuffle the options. JDM
if (currentTest.Shuffle == 1)
{
// Generate random number
Random rndNum = new Random();
// Assigns rndNum to itemPair
randomItemList.Add(itemPair.Item1);
randomItemList.Add(itemPair.Item2);
randomItemList.Add(unChoice);
// items to assign
// puts the itempair in random order
while (randomItemList.Count > 0)
{
int rndNumAssign = rndNum.Next(0, randomItemList.Count);
itemToAssign.Add(randomItemList[rndNumAssign]);
randomItemList.RemoveAt(rndNumAssign);
}
}
else
{
itemToAssign.Add(itemPair.Item1);
itemToAssign.Add(itemPair.Item2);
itemToAssign.Add(unChoice);
}
return(itemToAssign);
}
// Check to see if the user
public static bool userTookTest(UserClass currentUser, ItemPair itemPair)
{
List <TestSession> currentTestSessions = new List <TestSession>();
List <Test> testList = new List <Test>();
bool alreadyTookTest = false;
int itemID = 0;
string errorStuff = "Error getting test sessions";
// Get Test ID but needs item id first
itemID = itemPair.Item1.ItemID;
// Grab Existing Test Sessions
TestSessionDB.GetTestSessions(currentTestSessions, ref errorStuff);
// Get list of tests
int testID = 1;
foreach (var currentTestSession in currentTestSessions)
{
if (currentTestSession.intTestID == testID && currentTestSession.intUserID == currentUser.intUserID)
{
alreadyTookTest = true;
}
}
return(alreadyTookTest);
}
//Programmer: Jeremiah Montano
//Date: November 11, 2018
//Summary: Get list of ItemPairs for Custom Comparison
public List <ItemPair> GetCustomItemPairs(int intTestID)
{
SqlConnection conn = DatabaseHelper.Connect();
SqlCommand cmd = new SqlCommand("SPGetItemPairs", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter(ITEMPAIRS_TESTID_COLUMN, intTestID));
List <ItemPair> itemPairs = new List <ItemPair>();
ItemPair itemPair;
try
{
conn.Open();
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
itemPair = new ItemPair();
itemPair.Item1 = Item.getItem(Convert.ToInt32(reader[ITEMPAIRS_ITEMID1_COLUMN]));
itemPair.Item2 = Item.getItem(Convert.ToInt32(reader[ITEMPAIRS_ITEMID2_COLUMN]));
itemPairs.Add(itemPair);
}
return(itemPairs);
}
catch
{
return(null);
}
finally
{
conn.Close();
conn.Dispose();
}
}
