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Posted to commits@wicket.apache.org by "Andrea Del Bene (JIRA)" <ji...@apache.org> on 2015/02/07 16:29:34 UTC
[jira] [Updated] (WICKET-5790) VariableInterpolator &
#getThrowExceptionOnMissingResource
[ https://issues.apache.org/jira/browse/WICKET-5790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrea Del Bene updated WICKET-5790:
------------------------------------
Fix Version/s: 7.0.0-M6
6.20.0
> VariableInterpolator & #getThrowExceptionOnMissingResource
> ----------------------------------------------------------
>
> Key: WICKET-5790
> URL: https://issues.apache.org/jira/browse/WICKET-5790
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 6.18.0, 7.0.0-M4
> Reporter: Sebastien Briquet
> Assignee: Andrea Del Bene
> Fix For: 6.20.0, 7.0.0-M6
>
> Attachments: WICKET-5790.zip
>
>
> This ticket is a 2 in 1 issue:
> h4. #getThrowExceptionOnMissingResource() is given as VariableInterpolator ctor arg.
> When you want to raise a validation error like:
> {code:java}
> ValidationError error = new ValidationError();
> error.addKey("MyComponent.ConversionError");
> error.setVariable("myvar", myvalue);
> this.error(error);
> {code}
> A call is made to FormComponent.MessageSource.substitute which returns {{new VariableInterpolator(...).toString()}}
> The second arg to VariableInterpolator is meant for "exceptionOnNullVarValue" but what is supplied in #substitute() is {{Application.get().getResourceSettings().getThrowExceptionOnMissingResource().}}
> That's where it looks strange because #getThrowExceptionOnMissingResource() represents a flag about missing resources (like _MyComponent.properties_) and has nothing related to null values in my understanding.
> h4. ${var} is not replaced in case of null value (and null is allowed)
> In the previous example, if *#getThrowExceptionOnMissingResource()* return *false* (meaning *exceptionOnNullVarValue* is *false*) and *myvalue* is *null*, the validation error message gives something of the form "value of myvar: ${myvar}" instead of "value of myvar: null".
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