/// <summary>
/// Implementation of IPhoneBookRepository.AddContact(contact) which adds contact to database
/// </summary>
/// <param name="contact">Contact object to be added</param>
/// <returns>Unique contact identifier</returns>
public int AddContact(Contact contact)
{
if (contact == null || contact.Id != 0 || !IsContactConsistent(contact)) return 0;
using (var db = GetPhoneBookContextInstance())
{
contact.Owner = Owner;
var contactRecord = new ContactRecord(contact);
db.Contacts.Add(contactRecord);
db.SaveChanges();
contact.Id = contactRecord.Id;
return contact.Id;
}
}
/// <summary>
/// Method checks if repository user is authorized to access ContactRecord retrieved from database
/// </summary>
/// <param name="contactRecord">ContactRecord retrieved from database</param>
/// <returns></returns>
public bool IsRecordOwner(ContactRecord contactRecord)
{
return contactRecord != null && contactRecord.Owner == Owner;
}