Add db_schema_dump and db_schema_import rake tasks to work with the new...

Add db_schema_dump and db_schema_import rake tasks to work with the new ActiveRecord::SchemaDumper (for dumping a schema to and reading a schema from a ruby file).


git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2313 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/CHANGELOG

 *SVN*
 
+* Add db_schema_dump and db_schema_import rake tasks to work with the new ActiveRecord::SchemaDumper (for dumping a schema to and reading a schema from a ruby file).
+
 * Reformed all the config/environments/* files to conform to the new Rails::Configuration approach. Fully backwards compatible.
 
 * Added create_sessions_table, drop_sessions_table, and purge_sessions_table as rake tasks for databases that supports migrations (MySQL, PostgreSQL, SQLite) to get a table for use with CGI::Session::ActiveRecordStore

railties/lib/tasks/databases.rake

@@ -12,6 +12,20 @@ task :load_fixtures => :environment do
   end
 end
 
+desc "Create a db/schema.rb file that can be portably used against any DB supported by AR."
+task :db_schema_dump => :environment do
+  require 'active_record/schema_dumper'
+  File.open("db/schema.rb", "w") do |file|
+    ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file)
+  end
+end
+
+desc "Import a schema.rb file into the database."
+task :db_schema_import => :environment do
+  file = ENV['SCHEMA'] || "db/schema.rb"
+  load file
+end
+
 desc "Recreate the test databases from the development structure"
 task :clone_structure_to_test => [ :db_structure_dump, :purge_test_database ] do
   abcs = ActiveRecord::Base.configurations
@@ -118,4 +132,4 @@ end
 
 desc "Drop and recreate the session table (much faster than 'DELETE * FROM sessions')"
 task :purge_sessions_table => [ :drop_sessions_table, :create_sessions_table ] do
-end
\ No newline at end of file
+end