/// <summary>
/// Determines whether the contact can be saved.
/// </summary>
/// <param name="contact">The contact.</param>
/// <returns>
/// Operation Result including information about success of execution
/// </returns>
public OperationResult CanSave(IContact contact)
{
OperationResult operationResult;
operationResult = null;
if (string.IsNullOrEmpty(contact.FirstName))
{
operationResult = new OperationResult("First name not set.");
}
if (string.IsNullOrEmpty(contact.LastName))
{
if (operationResult == null)
{
operationResult = new OperationResult("Last name not set.");
}
else
{
operationResult.Errors.Add("Last name not set;");
}
}
if (operationResult == null)
{
this.contactPersistence.CanSave(contact);
}
return operationResult ?? new OperationResult();
}
private static void ValidateContractForEqualOperation(OperationResult operationResult, bool value)
{
Contract.Ensures(
(operationResult == null && Contract.Result<bool>() == false) ||
(Contract.Result<bool>() == (operationResult != null && operationResult.Success == value)));
}
