Merge branch 'master' of https://github.com/rails/rails

1 files changed, 13 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
index 8e74eff0ab..d88720c8bf 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb
@@ -67,12 +67,12 @@ module ActiveRecord
 
           begin
             require "active_record/connection_adapters/#{spec[:adapter]}_adapter"
-          rescue LoadError
-            raise "Please install the #{spec[:adapter]} adapter: `gem install activerecord-#{spec[:adapter]}-adapter` (#{$!})"
+          rescue LoadError => e
+            raise "Please install the #{spec[:adapter]} adapter: `gem install activerecord-#{spec[:adapter]}-adapter` (#{e})"
           end
 
           adapter_method = "#{spec[:adapter]}_connection"
-          if !respond_to?(adapter_method)
+          unless respond_to?(adapter_method)
             raise AdapterNotFound, "database configuration specifies nonexistent #{spec[:adapter]} adapter"
           end
 
@@ -89,6 +89,16 @@ module ActiveRecord
         retrieve_connection
       end
 
+      # Returns the configuration of the associated connection as a hash:
+      #
+      #  ActiveRecord::Base.connection_config
+      #  # => {:pool=>5, :timeout=>5000, :database=>"db/development.sqlite3", :adapter=>"sqlite3"}
+      #
+      # Please use only for reading.
+      def connection_config
+        connection_pool.spec.config
+      end
+
       def connection_pool
         connection_handler.retrieve_connection_pool(self)
       end