public void Post(int groupId, [FromBody] Message message)
{
message.GroupId = groupId;
_db.Messages.Add(message);
Group group = _db.Groups.FirstOrDefault(gp => gp.GroupId == message.GroupId);
group.Messages.Add(message);
_db.Entry(group).State = EntityState.Modified;
_db.SaveChanges();
}
public void Put(int id, [FromBody] Group group)
{
group.GroupId = id;
_db.Entry(group).State = EntityState.Modified;
_db.SaveChanges();
}