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From "Janne Jalkanen (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (JSPWIKI-114) VariableManger does not check "RealPage" for variables during variable lookup
Date Sat, 19 Jan 2008 17:26:34 GMT

     [ https://issues.apache.org/jira/browse/JSPWIKI-114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Janne Jalkanen resolved JSPWIKI-114.
------------------------------------

    Resolution: Fixed

Fixed in 2.6.1-cvs-8

> VariableManger does not check "RealPage" for variables during variable lookup
> -----------------------------------------------------------------------------
>
>                 Key: JSPWIKI-114
>                 URL: https://issues.apache.org/jira/browse/JSPWIKI-114
>             Project: JSPWiki
>          Issue Type: Bug
>          Components: Core & storage
>    Affects Versions: 2.4.104, 2.6.0
>            Reporter: Stephen Solka
>            Priority: Minor
>             Fix For: 2.6.1
>
>         Attachments: RealPageVariables.patch
>
>
> When one sets a page variable jspwiki attaches that variable to the realpage variable
which exists in the engine's context. But when looking up a variable reference only page is
checked for that variable. The result is when realpage and page differ all previously defined
variables vanish from scope. This can be seen when defining a variable then using the insertpage
plugin. the inserted page can not see any variables defined in the inserter page and thus
returns a variable not found error. 
> Initial Conversation on HowToUseAVariable which lead to bug:
> ========
> Lets pretend the code on one page called TestPage is
> Hello [{$tname}]
> Then the code for another page called Tester is
> [{SET tname='Stephen'}]
> [{InsertPage page='TestPage'}]
> It doesnt seem to be working as I would expect. I would expect the output to be
> Hello Stephen
> but instead I get
> Hello No such variable: No variable tname defined.
> What am I doing wrong? Why is InsertPage parsing the content of the inserted page prior
to insertion? --Stephen
> The tname variable is referring to the page variable called "tname" on page "Tester".
Variables are always interpreted in the context of the including page, not the included page.
This allows you to e.g. create templates which you can insert and control with page variables.
> -- JanneJalkanen
> If variables are interpreted in the context of the including page why does Tester claim
not to know what tname is when inserting a page that references that variable? Controlling
a inserted page through page variables is EXACTLY what I am trying to do. But if all page
variables defined in the including page lose scope prior to insertion then I fail to see how
this is possible? Is it possible to directly manipulate the variables for a page prior to
insertion?
> -- Stephen 

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