public ExpenseCategory Create(ExpenseCategory expenseCategory)
{
Contract.Requires <ArgumentException>(expenseCategory != null);
Contract.Requires <ArgumentException>(!string.IsNullOrWhiteSpace(expenseCategory.Name));
Contract.Requires <ArgumentException>(!Exists(expenseCategory.Name), $"Expense category '{expenseCategory.Name}' is already defined");
_repository.Create(expenseCategory);
return(expenseCategory);
}
public void Create(ExpenseCategory expenseCategory)
{
_repository.Create(expenseCategory);
}
