Assign variable to newly generated ID

Question

I'm running this query in my new project:

dbClient.setQuery("INSERT INTO `rooms` (`roomtype`, `caption`, `owner`, `description`, `category`, `state`, `users_now`, `users_max`, `model_name`, `public_ccts`, `score`, `tags`, `icon_bg`, `icon_fg`, `icon_items`, `password`, `wallpaper`, `floor`, `landscape`, `allow_pets`, `allow_pets_eat`, `allow_walkthrough`, `allow_hidewall`, `wallthick`, `floorthick`, `achievement`, `group_id`, `game_id`, `mute_settings`, `ban_settings`, `kick_settings`) VALUES " +
                                    "('private', 'VIP CADEAU: Penthouse', @username, 'Ontvang deze kamer GRATIS bij het lid worden van VIP (http://wonderhotel.nl/vip).', 11, 'open', 0, 25, 'model_i', '', 1, '', 1, 0, '', '', '0.0', '0.0', '0.0', '1', '0', '0', '0', -2, -2, 0, 0, 0, '0', '1', '1');");
                                    dbClient.addParameter("username", Session.GetHabbo().Username);
                                    dbClient.runQuery();

But now, I want to get the newly generated 'id' (=NULL) from this query and assign a parameter to it to use it in the following query as @newid:

dbClient.setQuery("INSERT INTO `items` (`user_id`, `room_id`, `base_item`, `extra_data`, `x`, `y`, `z`, `rot`, `wall_pos`, `rareid`) VALUES " +
"(@id, @newid, 99036, '0', 6, 6, 0.0002, 0, '', 0);");
                                    dbClient.addParameter("id", Session.GetHabbo().Id);
                                    dbClient.runQuery();

How can I assign the value generated in the first query to @newid? This solution looks logical to me, but it doesn't work:

dbClient.addParameter("roomid", dbClient.setQuery("LAST_INSERT_ID();");

Error: http://puu.sh/7GmCI/f5b6794d02.png

Thanks for the help!

@Tewr

dbClient.setQuery("INSERT INTO `rooms` (`id`, `roomtype`, `caption`, `owner`, `description`, `category`, `state`, `users_now`, `users_max`, `model_name`, `public_ccts`, `score`, `tags`, `icon_bg`, `icon_fg`, `icon_items`, `password`, `wallpaper`, `floor`, `landscape`, `allow_pets`, `allow_pets_eat`, `allow_walkthrough`, `allow_hidewall`, `wallthick`, `floorthick`, `achievement`, `group_id`, `game_id`, `mute_settings`, `ban_settings`, `kick_settings`) VALUES " +
                                    "(NULL, 'private', 'VIP CADEAU: Penthouse', @username, 'Ontvang deze kamer GRATIS bij het lid worden van VIP (http://wonderhotel.nl/vip).', 11, 'open', 0, 25, 'model_i', '', 1, '', 1, 0, '', '', '0.0', '0.0', '0.0', '1', '0', '0', '0', -2, -2, 0, 0, 0, '0', '1', '1');");
                                    dbClient.addParameter("username", Session.GetHabbo().Username);
                                    dbClient.setQuery("SELECT LAST_INSERT_ID();");
                        dbClient.runQuery();
dbClient.addParameter("roomid", dbClient.getRow()[0].ToString());

After that, the following code follows and uses the @roomid that we've defined previously.

  dbClient.setQuery("INSERT INTO `items` (`user_id`, `room_id`, `base_item`, `extra_data`, `x`, `y`, `z`, `rot`, `wall_pos`, `rareid`) VALUES " +
"(@id, @roomid, 99036, '0', 6, 6, 0.0002, 0, '', 0);");
                                    dbClient.addParameter("id", Session.GetHabbo().Id);
                                    dbClient.runQuery();

But this results in an error saying that @roomid isn't defined.

Answer 1

Your compilation errors and your existing code gave some clues:

This line does not compile since you are missing a parenthesis at the end, and setQuery() does not return a value:

dbClient.addParameter("roomid", dbClient.setQuery("LAST_INSERT_ID();");

So replace that with:

dbClient.setQuery("SELECT LAST_INSERT_ID();")
dbClient.runQuery();
dbClient.addParameter("roomid", dbClient.getRow()[0].ToString());

Now that this line in your code is compiling, it's not a guarantee that it will work... It looks like your code should have already worked in the first place. Make sure your table is configured correctly with AUTO_INCREMENT.