Query a Value within a MIGX Array Before Calling It?

Hello,

I have the following situation.

I have an event page to which sponsors can optionally be added to in various levels, such as Platinum or Gold, etc.

So I have a sponsors array set up where a user can add a sponsor logo, a link to the sponsor's web site, and designate the sponsorship level, i.e. Platinum or Gold.

Using the &where statement I can show just Platinum or just Gold easily enough.

But I need to show the suitable array of logos beneath a title, such as:

Platinum Sponsors
- logo
- logo
- logo

Gold Sponsors
- logo
- logo
- logo

What I did was make a chunk for each with the appropriate &where filter. But I would like to show the entire chunk with the MIGX arrays in them only if there is at least 1 of the sponsor level. So in other words, if the user just puts up all Gold sponsors, I don't need to show the Platinum chunk, and vice versa, or show both if both exist.

I've been using the If add-on extensively. Is there a way to query the value of a template variable that is not tied to the current template but buried in the MIGX variable that is tied to the current template?

The other solution is to just add a TV outside of it, attach it to the template and check if Platinum = yes, if Gold = Yes, etc. But from a user interface standpoint it would be best if the designation they choose within MIGX would automatically trigger showing the appropriate chunk with the filtered MIGX array within.

you can try the &toPlaceholder-property and show the chunk only, if the placeholder is not empty

http://forums.modx.com/thread/74718/if-statement-to-hide-migx-call-if-empty#dis-post-414340