redding/mr — pull request #36 by jcredding (2013-06-10 20:02:17+00:00)
Title: Add `has_one` association for `MR::Model`

This adds a `has_one` method for specifying has one associations
for a `MR::Model`. This is mostly syntactic sugar, as MR doesn't
know any difference between a `BelongsTo` and a `HasOne`. Thus,
this is mostly an expressive and intent-revealing syntax, instead
of providing new functionality.