[jira] [Commented] (WICKET-4620) Ability to choose the child ID for repeating views and the row ID for DataTable

["Sven Meier (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WICKET-4620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400047#comment-13400047 ] 

Sven Meier commented on WICKET-4620:
------------------------------------

What do you gain when the child ids are based on your model objects' IDs?
                
> Ability to choose the child ID for repeating views and the row ID for DataTable
> -------------------------------------------------------------------------------
>
>                 Key: WICKET-4620
>                 URL: https://issues.apache.org/jira/browse/WICKET-4620
>             Project: Wicket
>          Issue Type: New Feature
>          Components: wicket
>            Reporter: Trejkaz
>
> We are extensively using stateless behaviour in our application.
> Because our pages are stateless, we can't rely on the IDs for rows being the same between two visits to the same page - something might have happened to shift the rows up or down such as another user inserting or removing rows.
> Because of this, I would like to use the ID of our actual model objects as the child ID, but there are two barriers to achieving this:
> 1. Even though newChildId() in RepeatingView is public, it isn't passed the model object so I can't derive the ID from the model object.
> 2. Even though I could extend DataGridView, I can't customise my DataTable subclass to return the subclass because it's being constructed in the constructor.

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