theSteveMitchell/postgres_upsert — pull request #3 by simsalabim (2014-11-06 23:16:22+00:00)
Title: Feature/abstract connection

Changelist:
- work with instance of `PG::Connection` in the writer which has to be passed on initialize
- test `PostgresUpsert::Writer` rather than invoke it implicitly through AR mixin