namespace :db do desc "Migrate the database through scripts in db/migrate. Target specific version with VERSION=x" task :migrate => :environment do ActiveRecord::Migrator.migrate("db/migrate/", ENV["VERSION"] ? ENV["VERSION"].to_i : nil) Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end namespace :fixtures do desc "Load fixtures into the current environment's database" task :load => :environment do require 'active_record/fixtures' ActiveRecord::Base.establish_connection(RAILS_ENV.to_sym) Dir.glob(File.join(RAILS_ROOT, 'test', 'fixtures', '*.{yml,csv}')).each do |fixture_file| Fixtures.create_fixtures('test/fixtures', File.basename(fixture_file, '.*')) end end end namespace :schema do desc "Create a db/schema.rb file that can be portably used against any DB supported by AR" task :dump => :environment do require 'active_record/schema_dumper' File.open(ENV['SCHEMA'] || "db/schema.rb", "w") do |file| ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file) end end desc "Load a schema.rb file into the database" task :load => :environment do file = ENV['SCHEMA'] || "db/schema.rb" load(file) end end namespace :structure do desc "Dump the database structure to a SQL file" task :dump => :environment do abcs = ActiveRecord::Base.configurations case abcs[RAILS_ENV]["adapter"] when "mysql", "oci" ActiveRecord::Base.establish_connection(abcs[RAILS_ENV]) File.open("db/#{RAILS_ENV}_structure.sql", "w+") { |f| f << ActiveRecord::Base.connection.structure_dump } when "postgresql" ENV['PGHOST'] = abcs[RAILS_ENV]["host"] if abcs[RAILS_ENV]["host"] ENV['PGPORT'] = abcs[RAILS_ENV]["port"].to_s if abcs[RAILS_ENV]["port"] ENV['PGPASSWORD'] = abcs[RAILS_ENV]["password"].to_s if abcs[RAILS_ENV]["password"] search_path = abcs[RAILS_ENV]["schema_search_path"] search_path = "--schema=#{search_path}" if search_path `pg_dump -i -U "#{abcs[RAILS_ENV]["username"]}" -s -x -O -f db/#{RAILS_ENV}_structure.sql #{search_path} #{abcs[RAILS_ENV]["database"]}` when "sqlite", "sqlite3" dbfile = abcs[RAILS_ENV]["database"] || abcs[RAILS_ENV]["dbfile"] `#{abcs[RAILS_ENV]["adapter"]} #{dbfile} .schema > db/#{RAILS_ENV}_structure.sql` when "sqlserver" `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /f db\\#{RAILS_ENV}_structure.sql /q /A /r` `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /F db\ /q /A /r` else raise "Task not supported by '#{abcs["test"]["adapter"]}'" end if ActiveRecord::Base.connection.supports_migrations? File.open("db/#{RAILS_ENV}_structure.sql", "a") { |f| f << ActiveRecord::Base.connection.dump_schema_information } end end end namespace :test do desc "Recreate the test database from the current environment's database schema" task :clone => "db:schema:dump" do ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['test']) ActiveRecord::Schema.verbose = false Rake::Task["db:schema:load"].invoke end desc "Recreate the test databases from the development structure" task :clone_structure => [ "db:structure:dump", "db:test:purge" ] do abcs = ActiveRecord::Base.configurations case abcs["test"]["adapter"] when "mysql" ActiveRecord::Base.establish_connection(:test) ActiveRecord::Base.connection.execute('SET foreign_key_checks = 0') IO.readlines("db/#{RAILS_ENV}_structure.sql").join.split("\n\n").each do |table| ActiveRecord::Base.connection.execute(table) end when "postgresql" ENV['PGHOST'] = abcs["test"]["host"] if abcs["test"]["host"] ENV['PGPORT'] = abcs["test"]["port"].to_s if abcs["test"]["port"] ENV['PGPASSWORD'] = abcs["test"]["password"].to_s if abcs["test"]["password"] `psql -U "#{abcs["test"]["username"]}" -f db/#{RAILS_ENV}_structure.sql #{abcs["test"]["database"]}` when "sqlite", "sqlite3" dbfile = abcs["test"]["database"] || abcs["test"]["dbfile"] `#{abcs["test"]["adapter"]} #{dbfile} < db/#{RAILS_ENV}_structure.sql` when "sqlserver" `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{RAILS_ENV}_structure.sql` when "oci" ActiveRecord::Base.establish_connection(:test) IO.readlines("db/#{RAILS_ENV}_structure.sql").join.split(";\n\n").each do |ddl| ActiveRecord::Base.connection.execute(ddl) end else raise "Task not supported by '#{abcs["test"]["adapter"]}'" end end desc "Empty the test database" task :purge => :environment do abcs = ActiveRecord::Base.configurations case abcs["test"]["adapter"] when "mysql" ActiveRecord::Base.establish_connection(:test) ActiveRecord::Base.connection.recreate_database(abcs["test"]["database"]) when "postgresql" ENV['PGHOST'] = abcs["test"]["host"] if abcs["test"]["host"] ENV['PGPORT'] = abcs["test"]["port"].to_s if abcs["test"]["port"] ENV['PGPASSWORD'] = abcs["test"]["password"].to_s if abcs["test"]["password"] enc_option = "-E #{abcs["test"]["encoding"]}" if abcs["test"]["encoding"] `dropdb -U "#{abcs["test"]["username"]}" #{abcs["test"]["database"]}` `createdb #{enc_option} -U "#{abcs["test"]["username"]}" #{abcs["test"]["database"]}` when "sqlite","sqlite3" dbfile = abcs["test"]["database"] || abcs["test"]["dbfile"] File.delete(dbfile) if File.exist?(dbfile) when "sqlserver" dropfkscript = "#{abcs["test"]["host"]}.#{abcs["test"]["database"]}.DP1".gsub(/\\/,'-') `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{dropfkscript}` `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{RAILS_ENV}_structure.sql` when "oci" ActiveRecord::Base.establish_connection(:test) ActiveRecord::Base.connection.structure_drop.split(";\n\n").each do |ddl| ActiveRecord::Base.connection.execute(ddl) end else raise "Task not supported by '#{abcs["test"]["adapter"]}'" end end desc 'Prepare the test database and load the schema' task :prepare => :environment do Rake::Task[{ :sql => "db:test:clone_structure", :ruby => "db:test:clone" }[ActiveRecord::Base.schema_format]].invoke end end namespace :sessions do desc "Creates a sessions table for use with CGI::Session::ActiveRecordStore" task :create => :environment do raise "Task unavailable to this database (no migration support)" unless ActiveRecord::Base.connection.supports_migrations? ActiveRecord::Base.connection.create_table(session_table_name) do |t| t.column :session_id, :string t.column :data, :text t.column :updated_at, :datetime end ActiveRecord::Base.connection.add_index(session_table_name, :session_id) end desc "Drop the sessions table" task :drop => :environment do raise "Task unavailable to this database (no migration support)" unless ActiveRecord::Base.connection.supports_migrations? ActiveRecord::Base.connection.drop_table(session_table_name) end desc "Drop and recreate the session table (much faster than 'DELETE * FROM sessions')" task :recreate => [ "db:sessions:drop", "db:sessions:create" ] do end end end def session_table_name ActiveRecord::Base.pluralize_table_names ? :sessions : :session end