public bool EmailExists(Contact contact)
{
var results = from c in _dal.Contacts()
where c.Email.ToLower() == contact.Email.ToLower()
select contact;
return results.Any();
}
public void DeleteContact(Contact contact)
{
var doc = ContactDoc;
var contactToDelete = (from c in doc.Descendants("Contact")
where (int)c.Element("Id") == contact.Id
select c).SingleOrDefault();
contactToDelete.Remove();
doc.Save(System.Web.HttpContext.Current.Server.MapPath("~/App_Data/Contacts.xml"));
}
public List<Contact> GetFriends(Contact contact)
{
var doc = this.FriendDoc;
var results = from friend in doc.Descendants("Friend")
where (int)friend == contact.Id
select friend.Parent.Elements("Friend").Where(f => (int)f != contact.Id).Single();
List<Contact> contacts = new List<Contact>();
foreach (XElement elem in results)
contacts.Add(new ContactBUS().GetContact(int.Parse(elem.Value)));
return contacts;
}
public void CreateContact(Contact contact)
{
var doc = ContactDoc;
var maxId = 0;
if (doc.Descendants("Id").Count() > 0)
maxId = (from id in doc.Descendants("Id")
select (int)id).Max();
contact.Id = maxId + 1;
doc.Element("Contacts").Add(MapFromContact(contact));
doc.Save(System.Web.HttpContext.Current.Server.MapPath("~/App_Data/Contacts.xml"));
}
public void SetFriends(Contact contact, List<Contact> friends)
{
var doc = this.FriendDoc;
var results = from friend in doc.Descendants("Friend")
where (int)friend == contact.Id
select friend.Parent;
results.Remove();
foreach (var friend in friends)
{
var elem = new XElement("FriendPair",
new XElement("Friend", contact.Id),
new XElement("Friend", friend.Id));
doc.Descendants("Friends").Single().Add(elem);
}
doc.Save(System.Web.HttpContext.Current.Server.MapPath("~/App_Data/Friends.xml"));
}
public void EditContact(Contact contact)
{
_dal.EditContact(contact);
}
public void DeleteContact(Contact contact)
{
var friendsService = new FriendsBUS();
friendsService.SetFriends(contact, new List<Contact>());
_dal.DeleteContact(contact);
}
public void CreateContact(Contact contact)
{
_dal.CreateContact(contact);
}
public void SetFriends(Contact contact, List<Contact> friends)
{
friends.RemoveAll(f => f.Id == contact.Id);
this._dal.SetFriends(contact, friends);
}
public List<Contact> GetFriends(Contact contact)
{
return _dal.GetFriends(contact);
}
private XElement MapFromContact(Contact contact)
{
return new XElement("Contact",
new XElement("Id", contact.Id),
new XElement("FirstName", contact.FirstName),
new XElement("LastName", contact.LastName),
new XElement("Email", contact.Email),
new XElement("Username", contact.Username)
);
}
