public bool UsernameExists(string Username)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
return(ChatDB.Users.Any(user => user.Username == Username));
}
}
public bool IsUsertableEmpty()
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
return(!ChatDB.Users.Any());
}
}
public bool CreatePersonalMessageData(PersonalMessage personal)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.PersonalMessages.Add(personal);
return(SaveComitChanges(ChatDB));
}
}
public bool UpdateUserPassword(User UpdatedUser, string NewUserPassword)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.Users.Single(u => u.UserID == UpdatedUser.UserID).
Password = NewUserPassword;
return(SaveComitChanges(ChatDB));
}
}
public bool DeleteUser(User DeletedUser)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
User DeleteUser = ChatDB.Users.Single(u => u.UserID == DeletedUser.UserID);
ChatDB.Users.Remove(DeleteUser);
return(SaveComitChanges(ChatDB));
}
}
public bool CreateUserData(User user)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.Users.Add(user);
return(SaveComitChanges(ChatDB));
}
}
public bool UpdateUserAccess(User UpdatedUser)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.Users.Single(USER => USER.UserID == UpdatedUser.UserID).
TypeOfUser = UpdatedUser.TypeOfUser;
return(SaveComitChanges(ChatDB));
}
}
public bool CreateForumMessageData(ForumMessage forumMessage)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.ForumMessages.Add(forumMessage);
return(SaveComitChanges(ChatDB));
}
}
public bool UpdateUserName(User UpdatedUser, string NewUsername)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.Users.Single(ThisUser => ThisUser.Username == UpdatedUser.Username).
Username = NewUsername;
return(SaveComitChanges(ChatDB));
}
}
public List <PersonalMessage> ReadPersonalMessages()
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
return(ChatDB
.PersonalMessages
.Include(PM => PM.Sender)
.ToList());
}
}
public bool DeletePersonalMessage(PersonalMessage DeletedMessage, User sender)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
PersonalMessage DeletePM = ChatDB.PersonalMessages.Single(pm =>
pm.PersonalMessageId == DeletedMessage.PersonalMessageId);
ChatDB.PersonalMessages.Remove(DeletePM);
return(SaveComitChanges(ChatDB));
}
}
public bool UpdatePersonalMessage(PersonalMessage OldPersonalMessage, string NewPersonalMessageText)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.PersonalMessages.Single(PM =>
PM.PersonalMessageId == OldPersonalMessage.PersonalMessageId).
PersonalMessageText = NewPersonalMessageText;
return(SaveComitChanges(ChatDB));
}
}
public List <ForumMessage> ReadForumMessages()
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
return(ChatDB
.ForumMessages
.Include(FM => FM.Sender)
.ToList());
}
}
public bool UpdateForumMessage(ForumMessage OldForumMessage, string NewForumMessageText)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ChatDB.ForumMessages.Single(fm =>
fm.TextMessageToAll == OldForumMessage.TextMessageToAll).
TextMessageToAll = NewForumMessageText;
return(SaveComitChanges(ChatDB));
}
}
public bool MarkMessageAsRead(PersonalMessage ReadMessage)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
PersonalMessage ReadPM = ChatDB.PersonalMessages
.Single(rm => rm.PersonalMessageId == ReadMessage.PersonalMessageId);
ReadPM.isRead = true;
ReadPM.ReadDate = DateTime.Now;
return(SaveComitChanges(ChatDB));
}
}
public bool DeleteForumMessage(ForumMessage DeletedMessage, User sender)
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
ForumMessage DeletePM = ChatDB.ForumMessages.Single(fm =>
fm.TextMessageToAll == DeletedMessage.TextMessageToAll);
ChatDB.ForumMessages.Remove(DeletePM);
return(SaveComitChanges(ChatDB));
}
}
public List <User> ReadUserData()
{
using (ChatDatabase ChatDB = new ChatDatabase())
{
return(ChatDB.Users
.Include(u => u.ForumMessages)
.Include(u => u.ReceivedMessages)
.Include(u => u.SentMessages)
.ToList());
}
}
public bool SaveComitChanges(ChatDatabase chat)
{
try
{
return(chat.SaveChanges() > 0);
}
catch (Exception e)
{
Debug.Write(e.Message);
return(false);
}
}
