Class: Rails::DBConsole

Inherits:
Object show all
Defined in:
railties/lib/rails/commands/dbconsole.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arguments = ARGV) ⇒ DBConsole

Returns a new instance of DBConsole


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# File 'railties/lib/rails/commands/dbconsole.rb', line 14

def initialize(arguments = ARGV)
  @arguments = arguments
end

Instance Attribute Details

#argumentsObject (readonly)

Returns the value of attribute arguments


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# File 'railties/lib/rails/commands/dbconsole.rb', line 8

def arguments
  @arguments
end

Class Method Details

.startObject


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# File 'railties/lib/rails/commands/dbconsole.rb', line 10

def self.start
  new.start
end

Instance Method Details

#configObject


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# File 'railties/lib/rails/commands/dbconsole.rb', line 82

def config
  @config ||= begin
    cfg = begin
      YAML.load(ERB.new(IO.read("config/database.yml")).result)
    rescue SyntaxError, StandardError
      require APP_PATH
      Rails.application.config.database_configuration
    end

    cfg[environment] || abort("No database is configured for the environment '#{environment}'")
  end
end

#environmentObject


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# File 'railties/lib/rails/commands/dbconsole.rb', line 95

def environment
  if Rails.respond_to?(:env)
    Rails.env
  else
    ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"
  end
end

#startObject


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# File 'railties/lib/rails/commands/dbconsole.rb', line 18

def start
  options = parse_arguments(arguments)
  ENV['RAILS_ENV'] = options[:environment] || environment

  case config["adapter"]
  when /^mysql/
    args = {
      'host'      => '--host',
      'port'      => '--port',
      'socket'    => '--socket',
      'username'  => '--user',
      'encoding'  => '--default-character-set',
      'sslca'     => '--ssl-ca',
      'sslcert'   => '--ssl-cert',
      'sslcapath' => '--ssl-capath',
      'sslcipher' => '--ssh-cipher',
      'sslkey'    => '--ssl-key'
    }.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact

    if config['password'] && options['include_password']
      args << "--password=#{config['password']}"
    elsif config['password'] && !config['password'].to_s.empty?
      args << "-p"
    end

    args << config['database']

    find_cmd_and_exec(['mysql', 'mysql5'], *args)

  when "postgresql", "postgres", "postgis"
    ENV['PGUSER']     = config["username"] if config["username"]
    ENV['PGHOST']     = config["host"] if config["host"]
    ENV['PGPORT']     = config["port"].to_s if config["port"]
    ENV['PGPASSWORD'] = config["password"].to_s if config["password"] && options['include_password']
    find_cmd_and_exec('psql', config["database"])

  when "sqlite"
    find_cmd_and_exec('sqlite', config["database"])

  when "sqlite3"
    args = []

    args << "-#{options['mode']}" if options['mode']
    args << "-header" if options['header']
    args << File.expand_path(config['database'], Rails.respond_to?(:root) ? Rails.root : nil)

    find_cmd_and_exec('sqlite3', *args)

  when "oracle", "oracle_enhanced"
    logon = ""

    if config['username']
      logon = config['username']
      logon << "/#{config['password']}" if config['password'] && options['include_password']
      logon << "@#{config['database']}" if config['database']
    end

    find_cmd_and_exec('sqlplus', logon)

  else
    abort "Unknown command-line client for #{config['database']}. Submit a Rails patch to add support!"
  end
end