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https://issues.apache.org/jira/browse/TAPESTRY-1635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship updated TAPESTRY-1635:
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Fix Version/s: (was: 5.0.6)
5.0.7
> Support for optional validator constraints
> ------------------------------------------
>
> Key: TAPESTRY-1635
> URL: https://issues.apache.org/jira/browse/TAPESTRY-1635
> Project: Tapestry
> Issue Type: Improvement
> Components: tapestry-core
> Affects Versions: 5.0.5
> Reporter: Dan Adams
> Assignee: Dan Adams
> Fix For: 5.0.7
>
>
> I have a validator called 'method' that takes an optional string constraint
> which defaults to a reasonable value based on the field name. As of 5.0.5 you
> could do:
> <t:textfield t:id="name" validate="method" />
> you have to do:
> <t:textfield t:id="name" validate="method=" />
> to make the parameter an empty string. otherwise you get an exception that
> you didn't specify the constraint. I need a way of specifying that this
> constraint can be optional so you can use it with the first method. Also, I'm
> not sure if being able to do the second method should be considered a bug
> since the constraint is required but the value is empty.
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