As part of a location-aware project I've been working on, I've started work on this SpatialAssociations plugin.
It provides model helpers like 'has_many' and 'belongs_to' for spatial associations, those whose results are determined by the result of a spatial function linking two models.
So far there's only one type, is_enclosed_by / encloses, but I hope to include several more common spatial associations that would be helpful.
I've just started up the github here: github.com/bspaulding/ spatialassociations.
I'd appreciate it if anyone who's interested would take a look and tell me what you think of the idea, plus any associations you'd like to see implemented.
