I'm trying to figure out how to properly use conditions for shipping quotes but can't seem to wrap my head around this one. Products are 2 food types - frozen or nonfrozen. Our shipping methods are USPS and local delivery. Here's a high level set of conditions we have in place:
1. USPS - must contain nonfrozen (forbid other products). This works fine;
2. Local delivery - contains frozen or nonfrozen products. Also works fine;
How do we enforce that if your cart only contains nonfrozen, then USPS is the only option?
Is there a cleaner way to enforce a zip code validation via shipping quote conditions? Meaning, local delivery no longer becomes an option if you're outside the delivery zone? Right now, we have this working with a slightly tweaked module found here - https://drupal.org/node/1133812
Thanks in advance!