ActiveRecord host pooling
This gem allows for one ActiveRecord connection to be used to connect to multiple databases on a server. It accomplishes this by calling select_db() as necessary to switch databases between database calls.
For now, the only backend known to work is mysql. Postgres, from an informal reading of the docs, will never support the concept of one server connection sharing multiple dbs.
$ gem install active_record_host_pooling
and make sure to require 'active_record_host_pooling' in some way.
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