Don't have an opportunity to check this but as I know Tapestry treats
empty parameters as nulls. Just curious, why do you want empty
parameter in query string? Conceptually, parameters not being set
makes it null.
On Mon, Nov 9, 2009 at 3:50 PM, Angelo Chen <angelochen...@yahoo.com.hk> wrote:
>
> Hi,
> Thanks for the reply, but it does not work, still same error, i check the
> LinkImpl:
>
> public void addParameter(String parameterName, String value)
> {
> Defense.notBlank(parameterName, "parameterName");
> Defense.notBlank(value, "value");
>
> if (parameters == null)
> parameters = CollectionFactory.newMap();
>
> parameters.put(parameterName, value);
> }
>
> it is making sure the value is not blank, but I believe query string having
> blank value is often.
>
>
> Alexey Hanin wrote:
>>
>> Just make it empty string when it's null:
>>
>> lnk.addParameter("country", country == null ? "" : country);
>>
>> On Mon, Nov 9, 2009 at 3:24 PM, Angelo Chen <angelochen...@yahoo.com.hk>
>> wrote:
>>>
>>> Hi,
>>>
>>> I have a query string that I need to append to a Link object, the query
>>> string is:
>>>
>>> ?gender=M&country=
>>>
>>> I got two questions:
>>>
>>> 1) is there a simple way to append this string to a Link object instead
>>> of
>>> using addParameter?
>>>
>>> 2) if I do a lnk.addParameter("country", null) and I got following:
>>>
>>> RequestExceptionHandler Unexpected runtime exception: Parameter value
>>> was
>>> null or contained only whitespace.
>>>
>>> and I need to make the country part of query string even it is null, any
>>> idea? thanks,
>>>
>>> A.C.
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>>>
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>>
>
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