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Description: Merb Plugins: Even more modules to hook up your Merb installation
Homepage: http://www.merbivore.com
Clone URL: git://github.com/auser/merb-plugins.git
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Implementation of IRB sandbox methods

To support the --sandbox option for the IRB console, open_sandbox! and 
close_sandbox! have been added (as module singleton methods).
fabien (author)
Wed Mar 12 13:31:23 -0700 2008
commit  f3ec2c50a0695f6d3a135d28a2a552feac0b5d32
tree    8a5c184b2eb810cc75fe8e90473d6cffe8d1c333
parent  4024820c9f4b1832c65ad4f605513ad0ae5ae012
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merb_activerecord/lib/merb/orms/active_record/connection.rb 
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@@ -4,6 +4,23 @@ require 'active_record'
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 module Merb
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   module Orms
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     module ActiveRecord
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+      
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+      # Start a transaction.
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+      #
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+      # Used by Merb::Rack::Console#open_sandbox!
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+      def self.open_sandbox!
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+        ::ActiveRecord::Base.send :increment_open_transactions
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+        ::ActiveRecord::Base.connection.begin_db_transaction
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+      end
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+      
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+      # Rollback a transaction.
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+      #
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+      # Used by Merb::Rack::Console#open_sandbox!
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+      def self.close_sandbox!
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+        ::ActiveRecord::Base.connection.rollback_db_transaction
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+        ::ActiveRecord::Base.send :decrement_open_transactions
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+      end     
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+      
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       class << self
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         def config_file() Merb.dir_for(:config) / "database.yml" end
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         def sample_dest() Merb.dir_for(:config) / "database.yml.sample" end

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