Added check for RAILS_CONNECTION_ADAPTERS on startup and only load th…

…e connection adapters specified within if its present (available in Rails through config.connection_adapters using the new config) #1958 [skae]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2249 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,6 +1,6 @@
 *SVN*
 
-* Added check for RAILS_CONNECTION_ADAPTERS on startup and only load the connection adapters specified within if its present (available in Rails through config.connection_adapters using the new config) #1958
+* Added check for RAILS_CONNECTION_ADAPTERS on startup and only load the connection adapters specified within if its present (available in Rails through config.connection_adapters using the new config) #1958 [skae]
 
 * Fixed various problems with has_and_belongs_to_many when using customer finder_sql #2094 [Florian Weber]
 

railties/lib/initializer.rb

@@ -58,7 +58,8 @@ def set_load_path
     end
 
     def set_connection_adapters
-      RAILS_CONNECTION_ADAPTERS = configuration.connection_adapters
+      adapters = configuration.connection_adapters
+      silence_warnings { Object.const_set("RAILS_CONNECTION_ADAPTERS", adapters) if adapters }
     end
 
     def require_frameworks
@@ -161,7 +162,6 @@ def initialize
       self.cache_classes                = default_cache_classes
       self.breakpoint_server            = default_breakpoint_server
       self.whiny_nils                   = default_whiny_nils
-      self.connection_adapters          = default_connection_adapters
       self.database_configuration_file  = default_database_configuration_file
 
       for framework in default_frameworks
@@ -265,9 +265,5 @@ def default_breakpoint_server
       def default_whiny_nils
         false
       end
-
-      def default_connection_adapters
-        %w(mysql postgresql sqlite sqlserver db2 oci)
-      end
   end
 end