public void DeleteContact(int id)
{
if (this.Contacts % id == 0)
{
this.Contacts /= id;
MyDatabase.DeleteColumn(table, "C" + id * this.Id);
int oldContact1 = MyDatabase.RetrieveInt(table, "Contacts", "ID", this.Id);
int oldContact2 = MyDatabase.RetrieveInt(table, "Contacts", "ID", id);
MyDatabase.ChangeInt(table, "Contacts", oldContact1 / id, "ID", this.Id);
MyDatabase.ChangeInt(table, "Contacts", oldContact2 / id, "ID", id);
}
}
public Contact AddNewContact(int id)
{
if (!Methods.IsPrime(id) || Contacts % id == 0)
{
return(null); // check for the number to be possible to be an ID
}
IDs = new List <int>();
MyDatabase.RetrieveInfo(table, "ID", ref IDs);
if (!Methods.IntBelongsToArray(id, IDs.ToArray(), IDs.Count - 1))
{
return(null);
}
this.AddContactToDatabase(id);
int oldContact2 = MyDatabase.RetrieveInt(table, "Contacts", "ID", id);
MyDatabase.ChangeInt(table, "Contacts", oldContact2 * this.Id, "ID", id);
Conversation.AddConversationToDatabase(id, this.Id);
this.Contacts *= id;
return(new Contact(id));
}
public Contact AddNewContact(string username)
{
Usernames = new List <string>();
MyDatabase.RetrieveInfo(table, "Username", ref Usernames);
foreach (string uname in Usernames)
{
if (uname == username && this.Username != username && username != "admin")
{
int id = MyDatabase.RetrieveInt(table, "ID", "Username", username);
if (this.Contacts % id == 0)
{
return(null);
}
MyDatabase.ChangeInt(table, "Contacts", this.Contacts * id, "Username", this.Username);
int contacts = MyDatabase.RetrieveInt(table, "Contacts", "ID", id);
MyDatabase.ChangeInt(table, "Contacts", contacts * this.Id, "ID", id);
Conversation.AddConversationToDatabase(id, this.Id);
this.Contacts *= id;
return(new Contact(id));
}
}
return(null);
}
