private static Dictionary <int, HeadOfHousehold> GetHeadOfHouseholdMap(DataTable dtHoh)
{
if (HeadOfHouseholdMapCache != null)
{
return(HeadOfHouseholdMapCache);
}
HeadOfHouseholdMapCache = new Dictionary <int, HeadOfHousehold>();
foreach (DataRow headOfHousehold in dtHoh.Rows)
{
var individualId = headOfHousehold.Field <int>("individual_id");
var householdId = headOfHousehold.Field <int>("household_id");
var subStatusName = headOfHousehold.Field <string>("SubStatus_Name");
HeadOfHouseholdMapCache[householdId] = new HeadOfHousehold
{
IndividualId = individualId,
SubStatusName = subStatusName
};
}
return(HeadOfHouseholdMapCache);
}
/// <summary>
/// Gets a dictionary mapping of <see cref="HeadOfHousehold"/> objects.
/// </summary>
/// <param name="dtHoh">The <see cref="DataTable"/> with Head of Household data.</param>
private static Dictionary <int, HeadOfHousehold> GetHeadOfHouseholdMap(DataTable dtIndividuals)
{
if (_HeadOfHouseholdMapCache != null)
{
return(_HeadOfHouseholdMapCache);
}
_HeadOfHouseholdMapCache = new Dictionary <int, HeadOfHousehold>();
var householdPositionIndex = new Dictionary <int, int>();
foreach (DataRow drIndividual in dtIndividuals.Rows)
{
var householdId = drIndividual.Field <int>("household_id");
if (householdPositionIndex.ContainsKey(householdId) && householdPositionIndex[householdId] == 10)
{
// We already found a Head of Household for this family, so we can skip this record.
continue;
}
var position = drIndividual.Field <string>("Household_Position").ToLower();
int positionIndex = 0;
switch (position)
{
case "head":
positionIndex = 10;
break;
case "spouse":
positionIndex = 8;
break;
case "child":
positionIndex = 6;
break;
case "Other":
positionIndex = 4;
break;
case "Visitor":
positionIndex = 2;
break;
}
if (householdPositionIndex.ContainsKey(householdId) && householdPositionIndex[householdId] >= positionIndex)
{
// This record is not in a higher position than the one we already found, so we can ignore it.
continue;
}
var individualId = drIndividual.Field <int>("individual_id");
var subStatusName = drIndividual.Field <string>("SubStatus_Name");
var individual = new HeadOfHousehold
{
IndividualId = individualId,
SubStatusName = subStatusName
};
if (householdPositionIndex.ContainsKey(householdId))
{
// This record is a better match than the one already assigned, so replace the existing one.
householdPositionIndex[householdId] = positionIndex;
_HeadOfHouseholdMapCache[householdId] = individual;
}
else
{
// This is the first time we've seen this family, so we'll assume (for now) that this is the
// best match. We'll replace it later if we find a better one.
householdPositionIndex.Add(householdId, positionIndex);
_HeadOfHouseholdMapCache.Add(householdId, individual);
}
}
return(_HeadOfHouseholdMapCache);
}