if defined?(ActiveRecord) namespace :ar do namespace :create do desc 'Create all the local databases defined in config/database.yml' task :all => :environment do ActiveRecord::Base.configurations.each_value do |config| # Skip entries that don't have a database key, such as the first entry here: # # defaults: &defaults # adapter: mysql # username: root # password: # host: localhost # # development: # database: blog_development # <<: *defaults next unless config['database'] # Only connect to local databases local_database?(config) { create_database(config) } end end end desc 'Create the database defined in config/database.yml for the current Padrino.env' task :create => :environment do create_database(ActiveRecord::Base.configurations[Padrino.env]) end def create_database(config) begin if config['adapter'] =~ /sqlite/ if File.exist?(config['database']) $stderr.puts "#{config['database']} already exists" else begin # Create the SQLite database ActiveRecord::Base.establish_connection(config) ActiveRecord::Base.connection rescue $stderr.puts $!, *($!.backtrace) $stderr.puts "Couldn't create database for #{config.inspect}" end end return # Skip the else clause of begin/rescue else ActiveRecord::Base.establish_connection(config) ActiveRecord::Base.connection end rescue case config['adapter'] when 'mysql' @charset = ENV['CHARSET'] || 'utf8' @collation = ENV['COLLATION'] || 'utf8_unicode_ci' creation_options = {:charset => (config['charset'] || @charset), :collation => (config['collation'] || @collation)} begin ActiveRecord::Base.establish_connection(config.merge('database' => nil)) ActiveRecord::Base.connection.create_database(config['database'], creation_options) ActiveRecord::Base.establish_connection(config) rescue Mysql::Error => sqlerr if sqlerr.errno == Mysql::Error::ER_ACCESS_DENIED_ERROR print "#{sqlerr.error}. \nPlease provide the root password for your mysql installation\n>" root_password = $stdin.gets.strip grant_statement = "GRANT ALL PRIVILEGES ON #{config['database']}.* " \ "TO '#{config['username']}'@'localhost' " \ "IDENTIFIED BY '#{config['password']}' WITH GRANT OPTION;" ActiveRecord::Base.establish_connection(config.merge( 'database' => nil, 'username' => 'root', 'password' => root_password)) ActiveRecord::Base.connection.create_database(config['database'], creation_options) ActiveRecord::Base.connection.execute grant_statement ActiveRecord::Base.establish_connection(config) else $stderr.puts sqlerr.error $stderr.puts "Couldn't create database for #{config.inspect}, charset: #{config['charset'] || @charset}, collation: #{config['collation'] || @collation}" $stderr.puts "(if you set the charset manually, make sure you have a matching collation)" if config['charset'] end end when 'postgresql' @encoding = config[:encoding] || ENV['CHARSET'] || 'utf8' begin ActiveRecord::Base.establish_connection(config.merge('database' => 'postgres', 'schema_search_path' => 'public')) ActiveRecord::Base.connection.create_database(config['database'], config.merge('encoding' => @encoding)) ActiveRecord::Base.establish_connection(config) rescue $stderr.puts $!, *($!.backtrace) $stderr.puts "Couldn't create database for #{config.inspect}" end end else $stderr.puts "#{config['database']} already exists" end end namespace :drop do desc 'Drops all the local databases defined in config/database.yml' task :all => :environment do ActiveRecord::Base.configurations.each_value do |config| # Skip entries that don't have a database key next unless config['database'] begin # Only connect to local databases local_database?(config) { drop_database(config) } rescue Exception => e puts "Couldn't drop #{config['database']} : #{e.inspect}" end end end end desc 'Drops the database for the current Padrino.env' task :drop => :environment do config = ActiveRecord::Base.configurations[Padrino.env || 'development'] begin drop_database(config) rescue Exception => e puts "Couldn't drop #{config['database']} : #{e.inspect}" end end def local_database?(config, &block) if %w( 127.0.0.1 localhost ).include?(config['host']) || config['host'].blank? yield else puts "This task only modifies local databases. #{config['database']} is on a remote host." end end desc "Migrate the database through scripts in db/migrate and update db/schema.rb by invoking db:schema:dump. Target specific version with VERSION=x. Turn off output with VERBOSE=false." task :migrate => :environment do ActiveRecord::Migration.verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] == "true" : true 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 :migrate do desc 'Rollbacks the database one migration and re migrate up. If you want to rollback more than one step, define STEP=x. Target specific version with VERSION=x.' task :redo => :environment do if ENV["VERSION"] Rake::Task["db:migrate:down"].invoke Rake::Task["db:migrate:up"].invoke else Rake::Task["db:rollback"].invoke Rake::Task["db:migrate"].invoke end end desc 'Resets your database using your migrations for the current environment' task :reset => ["db:drop", "db:create", "db:migrate"] desc 'Runs the "up" for a given migration VERSION.' task :up => :environment do version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil raise "VERSION is required" unless version ActiveRecord::Migrator.run(:up, "db/migrate/", version) Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end desc 'Runs the "down" for a given migration VERSION.' task :down => :environment do version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil raise "VERSION is required" unless version ActiveRecord::Migrator.run(:down, "db/migrate/", version) Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end end desc 'Rolls the schema back to the previous version. Specify the number of steps with STEP=n' task :rollback => :environment do step = ENV['STEP'] ? ENV['STEP'].to_i : 1 ActiveRecord::Migrator.rollback('db/migrate/', step) Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end desc 'Pushes the schema to the next version. Specify the number of steps with STEP=n' task :forward => :environment do step = ENV['STEP'] ? ENV['STEP'].to_i : 1 ActiveRecord::Migrator.forward('db/migrate/', step) Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby end desc 'Drops and recreates the database from db/schema.rb for the current environment and loads the seeds.' task :reset => [ 'db:drop', 'db:setup' ] desc "Retrieves the charset for the current environment's database" task :charset => :environment do config = ActiveRecord::Base.configurations[Padrino.env || 'development'] case config['adapter'] when 'mysql' ActiveRecord::Base.establish_connection(config) puts ActiveRecord::Base.connection.charset when 'postgresql' ActiveRecord::Base.establish_connection(config) puts ActiveRecord::Base.connection.encoding else puts 'sorry, your database adapter is not supported yet, feel free to submit a patch' end end desc "Retrieves the collation for the current environment's database" task :collation => :environment do config = ActiveRecord::Base.configurations[Padrino.env || 'development'] case config['adapter'] when 'mysql' ActiveRecord::Base.establish_connection(config) puts ActiveRecord::Base.connection.collation else puts 'sorry, your database adapter is not supported yet, feel free to submit a patch' end end desc "Retrieves the current schema version number" task :version => :environment do puts "Current version: #{ActiveRecord::Migrator.current_version}" end 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? puts "You have #{pending_migrations.size} pending migrations:" pending_migrations.each do |pending_migration| puts ' %4d %s' % [pending_migration.version, pending_migration.name] end abort %{Run "rake db:migrate" to update your database then try again.} end end end desc 'Create the database, load the schema, and initialize with the seed data' task :setup => [ 'db:create', 'db:schema:load', 'db:seed' ] 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'] || Padrino.root("db", "schema.rb"), "w") do |file| ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file) end Rake::Task["db:schema:dump"].reenable end desc "Load a schema.rb file into the database" task :load => :environment do file = ENV['SCHEMA'] || Padrino.root("db", "schema.rb") if File.exists?(file) load(file) else raise %{#{file} doesn't exist yet. Run "rake db:migrate" to create it then try again. If you do not intend to use a database, you should instead alter #{Padrino.root}/config/boot.rb to limit the frameworks that will be loaded} end end end namespace :structure do desc "Dump the database structure to a SQL file" task :dump => :environment do abcs = ActiveRecord::Base.configurations case abcs[Padrino.env]["adapter"] when "mysql", "oci", "oracle" ActiveRecord::Base.establish_connection(abcs[Padrino.env]) File.open("#{Padrino.root}/db/#{Padrino.env}_structure.sql", "w+") { |f| f << ActiveRecord::Base.connection.structure_dump } when "postgresql" ENV['PGHOST'] = abcs[Padrino.env]["host"] if abcs[Padrino.env]["host"] ENV['PGPORT'] = abcs[Padrino.env]["port"].to_s if abcs[Padrino.env]["port"] ENV['PGPASSWORD'] = abcs[Padrino.env]["password"].to_s if abcs[Padrino.env]["password"] search_path = abcs[Padrino.env]["schema_search_path"] unless search_path.blank? search_path = search_path.split(",").map{|search_path| "--schema=#{search_path.strip}" }.join(" ") end `pg_dump -i -U "#{abcs[Padrino.env]["username"]}" -s -x -O -f db/#{Padrino.env}_structure.sql #{search_path} #{abcs[Padrino.env]["database"]}` raise "Error dumping database" if $?.exitstatus == 1 when "sqlite", "sqlite3" dbfile = abcs[Padrino.env]["database"] || abcs[Padrino.env]["dbfile"] `#{abcs[Padrino.env]["adapter"]} #{dbfile} .schema > db/#{Padrino.env}_structure.sql` when "sqlserver" `scptxfr /s #{abcs[Padrino.env]["host"]} /d #{abcs[Padrino.env]["database"]} /I /f db\\#{Padrino.env}_structure.sql /q /A /r` `scptxfr /s #{abcs[Padrino.env]["host"]} /d #{abcs[Padrino.env]["database"]} /I /F db\ /q /A /r` when "firebird" set_firebird_env(abcs[Padrino.env]) db_string = firebird_db_string(abcs[Padrino.env]) sh "isql -a #{db_string} > #{Padrino.root}/db/#{Padrino.env}_structure.sql" else raise "Task not supported by '#{abcs["test"]["adapter"]}'" end if ActiveRecord::Base.connection.supports_migrations? File.open("#{Padrino.root}/db/#{Padrino.env}_structure.sql", "a") { |f| f << ActiveRecord::Base.connection.dump_schema_information } end end end end def drop_database(config) case config['adapter'] when 'mysql' ActiveRecord::Base.establish_connection(config) ActiveRecord::Base.connection.drop_database config['database'] when /^sqlite/ require 'pathname' path = Pathname.new(config['database']) file = path.absolute? ? path.to_s : Padrino.root(path) FileUtils.rm(file) when 'postgresql' ActiveRecord::Base.establish_connection(config.merge('database' => 'postgres', 'schema_search_path' => 'public')) ActiveRecord::Base.connection.drop_database config['database'] end end def session_table_name ActiveRecord::SessionStore::Session.table_name end def set_firebird_env(config) ENV["ISC_USER"] = config["username"].to_s if config["username"] ENV["ISC_PASSWORD"] = config["password"].to_s if config["password"] end def firebird_db_string(config) FireRuby::Database.db_string_for(config.symbolize_keys) end end