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Description: ActiveRecord connection proxy for master/slave connections
Clone URL: git://github.com/technoweenie/masochism.git 
Added support for declaring your master database configuration 
per-environment (with a fallback to the old behavior of looking for a 
single declaration of "master_database").

To use, simply nest a master_database declaration in the desired 
environment:

login: &login
  adapter: mysql
  username: database_user
  password: foo

staging:
  database: staging_database
  host: stage-db-server.local
  <<: *login
  master_database:
    database: staging_database
    host: master-db-server.local
    <<: *login
jsmecham (author)
Tue Jul 01 12:54:07 -0700 2008
commit  0b58f4511dbc2747912935b24725892cae403ec9
tree    302af071042fbc414832e3c4569c6851a4cf781f
parent  cccfa41154f28953944f063c9682a4a05308e861
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README 
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@@ -1,13 +1,14 @@
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 masochism
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-==============
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+=========
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 The masochism plugin provides an easy solution for Ruby on Rails applications to
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 work in a replicated database environment. Connection proxy sends some database
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 queries (those in a transaction, update statements, and ActiveRecord::Base#reload) 
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 to a master database, and the rest to the slave database. 
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-The ActiveReload::MasterDatabase model uses a 'master_database' setting in 
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-database.yml to serve as the master database.
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+The ActiveReload::MasterDatabase model uses a 'master_database' setting that
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+can either be defined for all of your environments, or for each environment as
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+a nested declaration:
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   # config/database.yml
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   login: &login
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@@ -16,11 +17,24 @@ database.yml to serve as the master database.
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     port: 5432
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   production:
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-    database: slave_database_name
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+    database: production_slave_database_name
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     <<: *login
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-    
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+
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   master_database:
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-    database: master_database_name
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+    database: production_master_database_name
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+    <<: *login
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+
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+  staging:
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+    database: staging_database_name
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+    host: slave-db-pool.local
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+    <<: *login
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+    master_database: 
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+      database: staging_database_name
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+      host: master-db-server.local
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+      <<: *login
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+
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+  development: # Does not use masochism
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+    database: development_database_name
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     <<: *login
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 To setup:
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lib/active_reload/connection_proxy.rb 
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@@ -1,7 +1,7 @@
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 module ActiveReload
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   class MasterDatabase < ActiveRecord::Base
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     self.abstract_class = true
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-    establish_connection :master_database
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+    establish_connection configurations[Rails.env]['master_database'] || :master_database
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   end
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   class ConnectionProxy

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