Start Adding jdbcmysql support to new rails template.

More will come for jruby app.

railties/lib/rails/generators/app_base.rb

@@ -9,7 +9,7 @@ require 'uri'
 module Rails
   module Generators
     class AppBase < Base
-      DATABASES = %w( mysql oracle postgresql sqlite3 frontbase ibm_db )
+      DATABASES = %w( mysql oracle postgresql sqlite3 frontbase ibm_db jdbcmysql )
       JAVASCRIPTS = %w( jquery prototype )
 
       attr_accessor :rails_template
@@ -156,12 +156,13 @@ module Rails
       end
 
       def gem_for_database
-        # %w( mysql oracle postgresql sqlite3 frontbase ibm_db )
+        # %w( mysql oracle postgresql sqlite3 frontbase ibm_db jdbcmysql)
         case options[:database]
         when "oracle"     then "ruby-oci8"
         when "postgresql" then "pg"
         when "frontbase"  then "ruby-frontbase"
         when "mysql"      then "mysql2"
+        when "jdbcmysql"  then "activerecord-jdbcmysql-adapter"
         else options[:database]
         end
       end

railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml

@@ -0,0 +1,30 @@
+# MySQL.  Versions 4.1 and 5.0 are recommended.
+#
+# Install the MySQL driver:
+#   gem install activerecord-jdbcmysql-adapter
+#
+# And be sure to use new-style password hashing:
+#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
+development:
+  adapter: jdbcmysql
+  database: <%= app_name %>_development
+  username: root
+  password:
+  host: localhost
+
+# Warning: The database defined as "test" will be erased and
+# re-generated from your development database when you run "rake".
+# Do not set this db to the same as development or production.
+test:
+  adapter: jdbcmysql
+  database: <%= app_name %>_test
+  username: root
+  password:
+  host: localhost
+
+production:
+  adapter: jdbcmysql
+  database: <%= app_name %>_production
+  username: root
+  password:
+  host: localhost

railties/test/generators/app_generator_test.rb

@@ -131,6 +131,12 @@ class AppGeneratorTest < Rails::Generators::TestCase
     assert_file "Gemfile", /^gem\s+["']mysql2["']$/
   end
 
+  def test_config_jdbcmysql_database
+    run_generator([destination_root, "-d", "jdbcmysql"])
+    assert_file "config/database.yml", /jdbcmysql/
+    assert_file "Gemfile", /^gem\s+["']activerecord-jdbcmysql-adapter["']$/
+  end
+
   def test_generator_if_skip_active_record_is_given
     run_generator [destination_root, "--skip-active-record"]
     assert_no_file "config/database.yml"