ValueSetter Module with Url Loader Module

[cmak]

I have some pulldowns that I would like to prepopulate. I would like to prepopulate my pulldowns based on the URL parameters. However, if there are no URL params, I would like to have a default value for the pulldowns so they are not empty. It seems like I should be using URLLoader with the ValueSetter module.

However, it seems that these two modules conflict with each other. The downstream module would take precedence.

If the URL loader is downstream from the Valuesetter module and no URL parameters are passed, then no pulldown selections will be made.

If the ValueSetter module is downstream from the URL Loader, then the default values will always be chosen.

Is there a way to fix this behavior?

[sideview · Accepted solution]

This is what the allowClobber param is for, on the ValueSetter module.

Put your ValueSetter module downstream from the URLLoader and upstream from your Pulldown, give the ValueSetter the same "name" as the Pulldown, which is in turn the same name as the argument name from the URL. But set the 'allowClobber' param on the ValueSetter to "False".

This will mean that the ValueSetter will only send its value when there is no value coming from the URLLoader.