// add new person to organization
internal void AddPerson(PersonDTO personDTOAdd)
{
// if new person is null
if (personDTOAdd == null) throw new ArgumentNullException("personDTOAdd", "Переданный объект не указывает на конкретный экзампляр");
using (var entities = new ORGANIZATIONEntities())
{
// create transaction scope to make full transaction
using (var transaction = new TransactionScope(TransactionScopeOption.RequiresNew))
{
try
{
// add new person from parameters
var person = personDTOAdd.GetPerson();
entities.AddToPeople(person);
entities.SaveChanges(SaveOptions.DetectChangesBeforeSave);
personDTOAdd.Id = person.Id;
personDTO.Add(personDTOAdd);
transaction.Complete();
}
catch (Exception)
{
// error while add person
// throw exception again
throw;
}
}
}
}
// delete existed person
internal void DeletePerson(PersonDTO personDTODelete)
{
using (var entities = new ORGANIZATIONEntities())
{
try
{
// get personDTO id
var id = personDTODelete.Id;
// select deleted person and delete it
if (entities.People.Any(pers => pers.Id == id))
{
var personToDelete = entities.People.Where(pers => pers.Id == id).First();
entities.People.DeleteObject(personToDelete);
entities.SaveChanges(SaveOptions.DetectChangesBeforeSave);
personDTO.Remove(personDTODelete);
}
else
{
throw new ArgumentException("Не найден сотрудник с указанным идентификатором (Id)");
}
}
catch (Exception)
{
// error while delete person
// throw exception again
throw;
}
}
}
// edit existed person
internal void EditPerson(PersonDTO personDTOEdit)
{
using (var entities = new ORGANIZATIONEntities())
{
try
{
// get personDTO id
var id = personDTOEdit.Id;
// select person with specified id
if (entities.People.Any(pers => pers.Id == id))
{
var personToEdit = entities.People.Where(pers => pers.Id == id).First();
// edit existed person in DB
personToEdit.UpdatePerson(personDTOEdit);
entities.SaveChanges(SaveOptions.DetectChangesBeforeSave);
// update existed personDTO
var personDTOEdited = personDTO.Where(pers => pers.Id == id).First();
personDTOEdited.UpdatePersonDTO(personDTOEdit);
}
else
{
throw new ArgumentException("Не найден сотрудник с указанным идентификатором (Id)");
}
}
catch (Exception)
{
// throw exception again
throw;
}
}
}