I have resolved this:
The situation was that update_attributes was only working on the second
record in a nested form arrangement. To fix this problem I found that if I
do this:
@matchup = Matchup.includes(:rosters).where("matchups.id
=#{params[:id]}").first
Rather than
@matchup = Matchup.find(params[:id])
All associated records update via the nested arrangement.
So now when I run @matchup.upate_attributes(params[:matchup]), it updates
all records (and I have three levels of nested forms below the principal
record).
I assume that the problem was that using the #find method that for some
reason that update_attributes might be having a problem with the
associations not having loaded, where when I include the first main
association and then call #first, the whole record (and apparently
associated records) are loaded... given that when I implement the above, all
the other associations start to update correctly.
On Thu, May 19, 2011 at 12:31 PM, David Kahn <d...@structuralartistry.com>wrote:
> Got a weird situation with an update put to a controller with a form with
> nested attributes.
>
> On the data below, I am updating data for both items ('0' and '1') in
> rosters_attributes (in the example below I am updating the 'name' attribute
> to a new value in both cases. What I am stuck on is that '1' gets its data
> updated, regardless of what field I update, while '0' does not get updated
> regardless of the field.
>
> However, update_attributes(params[:matchup]) returns true, so there is no
> error. If the second was not updating I would assume something is wrong in
> my code in terms of attributes getting assigned to a model, but that does
> not seem to be the case.
>
> Parameters: {
> "matchup"=>
> {
> "end_date(3i)"=>"19", "end_date(4i)"=>"16", "end_date(5i)"=>"46",
> "rosters_attributes"=>
> {
> "0"=>
> {
> "name"=>"abc", "players_rosters_attributes"=>
> {
> "0"=>{"player_id"=>"1", "id"=>"65"},
> "1"=>{"player_id"=>"2", "id"=>"66"},
> "2"=>{"player_id"=>"3", "id"=>"67"},
> "3"=>{"player_id"=>"4", "id"=>"68"}
> },
> "id"=>"17"
> },
> "1"=>
> {
> "name"=>"bcd", "players_rosters_attributes"=>
> {
> "0"=>{"player_id"=>"3", "id"=>"69"},
> "1"=>{"player_id"=>"2", "id"=>"70"},
> "2"=>{"player_id"=>"7", "id"=>"71"},
> "3"=>{"player_id"=>"8", "id"=>"72"}
> },
> "id"=>"18"
> }
> },
> "release_date(1i)"=>"2012", "release_date(2i)"=>"5",
> "release_date(3i)"=>"19", "release_date(4i)"=>"16",
> "end_date(1i)"=>"2012", "release_date(5i)"=>"46", "end_date(2i)"=>"5"},
> "commit"=>"Update Fantasy matchup",
> "authenticity_token"=>"lAOYIXDYqm965eIyAv4/MXZSTgGSsx11DIea0XLGiZo=",
> "utf8"=>"✓", "id"=>"9"}
>
>
> Also, in the server, I see that the first Roster is loading but does not
> get its name updated while the second does.
>
> User Load (0.4ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 2
> LIMIT 1
> UserProfile Load (0.4ms) SELECT `user_profiles`.* FROM `user_profiles`
> WHERE (`user_profiles`.user_id = 2) LIMIT 1
> FantasyMatchup Load (0.3ms) SELECT `matchups`.* FROM `fantasy_matchups`
> WHERE `fantasy_matchups`.`id` = 9 LIMIT 1
> SQL (0.1ms) BEGIN
> Roster Load (0.3ms) SELECT `rosters`.* FROM `rosters` WHERE
> `rosters`.`id` IN (17, 18) AND (`rosters`.matchup_id = 9)
> *# This does not update but should*
> * PlayersRoster Load (0.3ms) SELECT `players_rosters`.* FROM
> `players_rosters` WHERE `players_rosters`.`id` IN (65, 66, 67, 68) AND
> (`players_rosters`.roster_id = 17)
> CACHE (0.0ms) SELECT `matchups`.* FROM `fantasy_matchups` WHERE
> `fantasy_matchups`.`id` = 9 LIMIT 1
> * SQL (0.7ms) SELECT COUNT(*) FROM `rosters` INNER JOIN `bets` ON
> `bets`.`roster_id` = `rosters`.`id` WHERE (`rosters`.matchup_id = 9)
> CACHE (0.0ms) SELECT `matchups`.* FROM `fantasy_matchups` WHERE
> `fantasy_matchups`.`id` = 9 LIMIT 1
> CACHE (0.0ms) SELECT COUNT(*) FROM `rosters` INNER JOIN `bets` ON
> `bets`.`roster_id` = `rosters`.`id` WHERE (`rosters`.matchup_id = 9)*
> # This updates*
> * PlayersRoster Load (0.4ms) SELECT `players_rosters`.* FROM
> `players_rosters` WHERE `players_rosters`.`id` IN (69, 70, 71, 72) AND
> (`players_rosters`.roster_id = 18)
> AREL (0.4ms) UPDATE `rosters` SET `name` = 'bcd', `updated_at` =
> '2011-05-19 17:12:53' WHERE `rosters`.`id` = 18
> * SQL (0.8ms) COMMIT
>
>
> Any ideas, anyone?
>
> Thanks,
>
> David
>
>
>
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