The paint is barely dry on 37Signals’ latest product teaser, Sunrise, but DHH has already confirmed that Rails continues to benefit from the lessons learned in the wild:
BTW, for those keeping tab on Rails development, we’ve already started abstracting the tech we’re using in Sunrise. Polymorphic associations and join models are both abstractions from Sunrise.
Join models promise relief from occasional habtm “pushback” and are something I first saw used in the “Pursuit of Beauty” presentation. Being the geek that I am, join models excite me to no end.
If you want these features you’ll need to be on the edge. But fear not! Working on the edge couldn’t be easier, what with the rake freeze_edge task, so don’t wait for 1.1 to try out these new goodies.
Rick Olson talked a little bit about polymorphic joins in the Rails Podcast.
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