/// <summary>
/// Find the effective (inherited) value of a column in a debt class.
/// </summary>
/// <typeparam name="T">The type of the column.</typeparam>
/// <param name="debtClassId">The DebtClassId of the debt class in question.</param>
/// <param name="field">The column to retrieve.</param>
/// <returns>Effective value of the indicated column, eg. the value in the debt class with the indicated ID, or, if that debt class has no
/// value for the column, the value of the column in nearest ancestor debt class that has a value for that column. If no value can be found,
/// returns null.</returns>
private static object FindEffectiveField <T>(Guid debtClassId, DataColumn field)
{
object value = null;
lock (DataModel.SyncRoot)
{
DebtClassRow parent = DebtClass.FindParentWithField(debtClassId, field);
if (parent != null)
{
value = (object)parent.Field <T>(field);
}
}
return(value);
}
/// <summary>
/// Find the debt rule assocatiated with a debt class of a particular type. This function locks the DataModel.
/// </summary>
/// <param name="debtClassId">The DebtClassId of the debt class.</param>
/// <param name="typeId">The TypeId of the debt class.</param>
/// <returns>The debt rule. If none can be found either in the debt class or its ancestors, null is returned.</returns>
public static DebtRule GetDebtRule(Guid debtClassId, Guid typeId)
{
DebtRule rule = null;
lock (DataModel.SyncRoot)
{
DebtClassRow parent = DebtClass.FindParentWithField(debtClassId, DataModel.DebtClass.DebtRuleIdColumn);
if (parent != null)
{
rule = new DebtRule(parent.DebtRuleRow);
}
}
return(rule);
}