Don't check for pending migrations if Active Record isn't loaded

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8338 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/lib/tasks/databases.rake

@@ -127,6 +127,7 @@ namespace :db do
 
   desc "Raises an error if there are pending migrations"
   task :abort_if_pending_migrations => :environment do
+    if defined? ActiveRecord
       pending_migrations = ActiveRecord::Migrator.new(:up, 'db/migrate').pending_migrations
 
       if pending_migrations.any?
@@ -137,6 +138,7 @@ namespace :db do
         abort "Run `rake db:migrate` to update your database then try again."
       end
     end
+  end
 
   namespace :fixtures do
     desc "Load fixtures into the current environment's database.  Load specific fixtures using FIXTURES=x,y"
@@ -304,7 +306,7 @@ namespace :db do
 
     desc 'Prepare the test database and load the schema'
     task :prepare => %w(environment db:abort_if_pending_migrations) do
-      if defined?(ActiveRecord::Base) && !ActiveRecord::Base.configurations.blank?
+      if defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank?
         Rake::Task[{ :sql  => "db:test:clone_structure", :ruby => "db:test:clone" }[ActiveRecord::Base.schema_format]].invoke
       end
     end