On Fri, Aug 17, 2012 at 12:39 AM, Peter Cock wrote:
> On Fri, Aug 17, 2012 at 12:18 AM, Dan Tenenbaum wrote:
>> Hello, I have the following wrapper:
>>
>>
>> foo
>>
>> tool.py $outputFileName
>>
>>
>> > optional="false"/>
>>
>>
>>
>>
>>
>>
>> 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 ;)
OK. I'll buy that. But perhaps when type="text", optional="false"
should treat the empty string as though there is no value.
>
> You can probably use a validator in the XML for this (e.g. insist
> on at least one character).
This worked for me:
Thanks very much!
Dan
>
> Peter
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