public async Task AddToGroup(string groupName)
{
string userId = Context.UserIdentifier;
var connectedUser = _db.ConnectedUsers.FirstOrDefault(x => x.AspNetUserId == userId);
connectedUser.GroupName = groupName;
_db.ConnectedUsers.Update(connectedUser);
_db.SaveChanges();
await Groups.AddToGroupAsync(connectedUser.ConnectionId, groupName);
await Clients.Group(groupName).SendAsync("ReceiveGroupAdd", $"{connectedUser.UserName} has joined the group {groupName}.");
}
public void OnPost()
{
var userName = Request.Form["UserName"];
if (!string.IsNullOrWhiteSpace(userName))
{
this.UserName = userName;
var optionsBuilder = new DbContextOptionsBuilder <KnowledgeShareDbContext>();
optionsBuilder.UseSqlServer(Configuration.GetConnectionString("KnowledgeShareDbContext"));
using (var context = new KnowledgeShareDbContext(optionsBuilder.Options))
{
context.ConnectedUsers.Add(new Models.ConnectedUser {
UserName = userName
});
context.SaveChanges();
}
}
}
