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namespace :db do
desc 'Creates the databases defined in your config/database.yml (unless they already exist)'
task :create => :environment do
ActiveRecord::Base.configurations.each_value do |config|
begin
ActiveRecord::Base.establish_connection(config)
ActiveRecord::Base.connection
rescue
case config['adapter']
when 'mysql'
@charset = ENV['CHARSET'] || 'utf8'
@collation = ENV['COLLATION'] || 'utf8_general_ci'
ActiveRecord::Base.establish_connection(config.merge({'database' => nil}))
ActiveRecord::Base.connection.create_database(config['database'], {:charset => @charset, :collation => @collation})
ActiveRecord::Base.establish_connection(config)
when 'postgresql'
`createdb "#{config['database']}" -E utf8`
when 'sqlite'
`sqlite "#{config['database']}"`
when 'sqlite3'
`sqlite3 "#{config['database']}"`
end
end
end
ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[RAILS_ENV || 'development'])
end
desc 'Drops the database for your currenet RAILS_ENV as defined in config/database.yml'
task :drop => :environment do
config = ActiveRecord::Base.configurations[RAILS_ENV || 'development']
case config['adapter']
when 'mysql'
ActiveRecord::Base.connection.drop_database config['database']
when /^sqlite/
FileUtils.rm_f File.join(RAILS_ROOT, config['database'])
when 'postgresql'
`dropdb "#{config['database']}"`
end
end
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
desc 'Drops, creates and then migrates the database for your current RAILS_ENV. Target specific version with VERSION=x'
task :reset => ['db:drop', 'db:create', 'db:migrate']
desc "retrieve the charset for your database defined in your current RAILS_ENV"
task :charset => :environment do
config = ActiveRecord::Base.configurations[RAILS_ENV || 'development']
case config['adapter']
when 'mysql'
ActiveRecord::Base.establish_connection(config)
puts ActiveRecord::Base.connection.charset
else
puts 'sorry, your database adapter is not supported yet, feel free to submit a patch'
end
end
desc "retrieve the collation for your database"
task :collation => :environment do
config = ActiveRecord::Base.configurations[RAILS_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
namespace :fixtures do
desc "Load fixtures into the current environment's database. Load specific fixtures using FIXTURES=x,y"
task :load => :environment do
require 'active_record/fixtures'
ActiveRecord::Base.establish_connection(RAILS_ENV.to_sym)
(ENV['FIXTURES'] ? ENV['FIXTURES'].split(/,/) : 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", "oracle"
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"]}`
raise "Error dumping database" if $?.exitstatus == 1
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`
when "firebird"
set_firebird_env(abcs[RAILS_ENV])
db_string = firebird_db_string(abcs[RAILS_ENV])
sh "isql -a #{db_string} > db/#{RAILS_ENV}_structure.sql"
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 => %w(db:schema:dump db:test:purge) 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", "oracle"
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
when "firebird"
set_firebird_env(abcs["test"])
db_string = firebird_db_string(abcs["test"])
sh "isql -i db/#{RAILS_ENV}_structure.sql #{db_string}"
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"]
ActiveRecord::Base.clear_active_connections!
`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", "oracle"
ActiveRecord::Base.establish_connection(:test)
ActiveRecord::Base.connection.structure_drop.split(";\n\n").each do |ddl|
ActiveRecord::Base.connection.execute(ddl)
end
when "firebird"
ActiveRecord::Base.establish_connection(:test)
ActiveRecord::Base.connection.recreate_database!
else
raise "Task not supported by '#{abcs["test"]["adapter"]}'"
end
end
desc 'Prepare the test database and load the schema'
task :prepare => :environment do
if defined?(ActiveRecord::Base) && !ActiveRecord::Base.configurations.blank?
Rake::Task[{ :sql => "db:test:clone_structure", :ruby => "db:test:clone" }[ActiveRecord::Base.schema_format]].invoke
end
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?
require 'rails_generator'
require 'rails_generator/scripts/generate'
Rails::Generator::Scripts::Generate.new.run(["session_migration", ENV["MIGRATION"] || "AddSessions"])
end
desc "Clear the sessions table"
task :clear => :environment do
session_table = 'session'
session_table = Inflector.pluralize(session_table) if ActiveRecord::Base.pluralize_table_names
ActiveRecord::Base.connection.execute "DELETE FROM #{session_table}"
end
end
end
def session_table_name
ActiveRecord::Base.pluralize_table_names ? :sessions : :session
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
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