Really hoping someone out there can help with, I'm looking for some plugin or hack suggestions to enable the following...
I'm setting up a site that has a business listing (over 1200 posts) with a custom post type 'business' and various custom fields for addresses, contact details etc.
Basically, I've got all that set up and working great but I'm now looking for a solution to group various businesses by postcode and area allowing the visitor to search.
Each postcode has about 10-20 related postcodes (region/area) and I want a person searching for one postcode to be shown entries from any business in the related / close areas via the additional postcodes.
I've tried assigning a custom field of 'grouping' to each business which includes all related postcodes but unfortunately this is an unworkable solution considering the vast amount of businesses I have.
Does anyone have any idea how I could accomplish this?
Thanks so much!