func (s SqlChannelStore) UpdateMember(member *model.ChannelMember) StoreChannel { storeChannel := make(StoreChannel) go func() { result := StoreResult{} member.PreUpdate() if result.Err = member.IsValid(); result.Err != nil { storeChannel <- result close(storeChannel) return } if _, err := s.GetMaster().Update(member); err != nil { result.Err = model.NewLocAppError("SqlChannelStore.UpdateMember", "store.sql_channel.update_member.app_error", nil, "channel_id="+member.ChannelId+", "+"user_id="+member.UserId+", "+err.Error()) } else { result.Data = member } storeChannel <- result close(storeChannel) }() return storeChannel }