internal virtual bool Validate(StringBuilder validationMessages)
{
var retval = true;
retval &= Incomes.OfType <IModelValidate>().ToList().All(i => i.Validate(validationMessages));
retval &= Expenses.OfType <IModelValidate>().ToList().All(e => e.Validate(validationMessages));
if (Expenses.Any(e => e.Bucket.Code == SurplusBucket.SurplusCode))
{
validationMessages.AppendFormat(CultureInfo.CurrentCulture,
"You can not use SURPLUS as an expense code.");
retval = false;
}
IEnumerable <string> duplicates = Expenses
.GroupBy(i => i.Bucket.Code)
.Where(g => g.Count() > 1)
.Select(g => g.Key);
foreach (var duplicateCode in duplicates)
{
retval = false;
validationMessages.AppendFormat(CultureInfo.CurrentCulture,
"Expense {0} is listed multiple time, each bucket must have a different name.", duplicateCode);
}
return(retval);
}