Added db:migrate:redo and db:migrate:reset for rerunning existing migrations #10431, (closes #10432) [matt]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8383 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/CHANGELOG

@@ -1,6 +1,6 @@
 *SVN*
 
-* Added db:migrate:redo for rerunning existing migrations #10431 [matt]
+* Added db:migrate:redo and db:migrate:reset for rerunning existing migrations #10431, #10432  [matt]
 
 * RAILS_GEM_VERSION may be double-quoted also.  #10443 [James Cox]
 

railties/lib/tasks/databases.rake

@@ -89,6 +89,9 @@ namespace :db do
   namespace :migrate do
     desc  'Rollbacks the database one migration and re migrate up. If you want to rollback more than one step, define STEP=x'
     task :redo => [ 'db:rollback', 'db:migrate' ]
+
+    desc 'Resets your database using your migrations for the current environment'
+    task :reset => ["db:drop", "db:create", "db:migrate"]
   end
 
   desc 'Rolls the schema back to the previous version. Specify the number of steps with STEP=n'