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Posted to dev@tapestry.apache.org by "Geoff Callender (Commented) (JIRA)" <ji...@apache.org> on 2012/04/12 15:29:17 UTC
[jira] [Commented] (TAP5-1896) AjaxFormLoop corrupts list when
redisplayed after Remove then server-side failure
[ https://issues.apache.org/jira/browse/TAP5-1896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252414#comment-13252414 ]
Geoff Callender commented on TAP5-1896:
---------------------------------------
It seems to be that Form's Validation Tracker knows about added rows (thanks to the FormInjector?) but not removed rows - on redisplay it expects them to still be there.
> AjaxFormLoop corrupts list when redisplayed after Remove then server-side failure
> ---------------------------------------------------------------------------------
>
> Key: TAP5-1896
> URL: https://issues.apache.org/jira/browse/TAP5-1896
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.3, 5.2
> Reporter: Geoff Callender
> Priority: Critical
>
> To see the effect use an AjaxFormLoop with input field(s) and at least 3 rows built from existing data. It must be in a Form.
> Remove row n.
> Submit, ensuring in some way that you get a server-side validation error.
> The redisplayed loop will have all the right output values, but the input values will be corrupted:
> - the removed row (n) will be missing (good),
> - row n+1 will be correct (good),
> - every row below that will have input values that belong to the row before it (bad).
> If you try the process again but this time remove 2 adjacent rows you'll get:
> - the removed rows (n-1 and n) will be missing (good),
> - row n+1 will be correct (good),
> - row n+2 will be correct (good),
> - every row below that will have input values that belong 2 rows before it (bad).
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