On Fri, Aug 17, 2012 at 12:18 AM, Dan Tenenbaum <dtene...@fhcrc.org> wrote:
> Hello, I have the following wrapper:
> <tool id="foo" name="foo" version="0.99.0">
>   <description>foo</description>
>   <command interpreter="python">
>       tool.py $outputFileName
>   </command>
>   <inputs>
>       <param name="tp" type="text" label="label" help="help" 
> optional="false"/>
>   </inputs>
>   <outputs>
>       <data format="csv" name="outputFileName"/>
>   </outputs>
> </tool>
> I expect that when I click "Execute" I will be told that "tp" must
> have a value. However, that doesn't happen, it just goes ahead and
> executes the script.
> How do I get Galaxy to require that a text param have a value?
> Thanks,
> Dan

Probably is has the value of an empty string? That seems
logical but unhelpful - and explains the behaviour ;)

You can probably use a validator in the XML for this (e.g. insist
on at least one character).

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