public PetType GetPetTypeById(int id)
{
if (id < 1)
{
throw new InvalidDataException("ID cannot be lower than 1");
}
return _petTypeRepository.ReadPetTypeById(id);
}
//Validates new pet objects
public Pet ValidatePet(Pet petToValidate, bool validateId)
{
string errorMessage = "";
if (validateId)
{
if (petToValidate.PetId < 1)
{
errorMessage += "Pet ID must be a positive integer greater than zero\n";
}
}
if (petToValidate.PreviousOwner == null || petToValidate.PreviousOwner.OwnerId < 1)
{
errorMessage += "Pet must have a previous owner and owner ID must be a positive integer greater than zero\n";
}
else
{
var foundOwner = _ownerRepository.ReadOwnerById(petToValidate.PreviousOwner.OwnerId);
if (foundOwner == null)
{
errorMessage += "No owner found with owner ID. Previous owner must be an existing owner\n";
}
else
{
petToValidate.PreviousOwner = foundOwner;
}
}
if (petToValidate.Type == null || petToValidate.Type.PetTypeId < 1)
{
errorMessage += "Pet must have a type and pet type ID must be a positive integer greater than zero\n";
}
else
{
var foundPetType = _petTypeRepository.ReadPetTypeById(petToValidate.Type.PetTypeId);
if (foundPetType == null)
{
errorMessage += "No pet type found with pet type ID. Type must be an existing pet type\n";
}
else
{
petToValidate.Type = foundPetType;
}
}
if (string.IsNullOrEmpty(petToValidate.Name) || petToValidate.Name.Length < 2)
{
errorMessage += "Name of pet must be at least two characters\n";
}
if (petToValidate.BirthDate == null || petToValidate.BirthDate == DateTime.MinValue || petToValidate.BirthDate > DateTime.Now)
{
errorMessage += "Pet must have a birth date which cannot be in the future\n";
}
//solddate is optional - maybe initialize as equal to birthdate instead of going to default value
if (petToValidate.SoldDate != null && petToValidate.SoldDate != DateTime.MinValue && petToValidate.SoldDate < petToValidate.BirthDate)
{
errorMessage += "Last selling date of the pet cannot predate it's birth\n";
}
if (string.IsNullOrEmpty(petToValidate.Color) || petToValidate.Color.Length < 3)
{
errorMessage += "Name of color must be at least three characters\n";
}
if (petToValidate.Price < 0)
{
errorMessage += "Price of pet cannot be negative\n";
}
if (errorMessage.Length > 0)
{
throw new ArgumentException(errorMessage);
}
return(petToValidate);
}