sqlite3_connection

# File activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb, line 12
    def sqlite3_connection(config)
      # Require database.
      unless config[:database]
        raise ArgumentError, "No database file specified. Missing argument: database"
      end

      # Allow database path relative to Rails.root, but only if the database
      # path is not the special path that tells sqlite to build a database only
      # in memory.
      if ':memory:' != config[:database]
        config[:database] = File.expand_path(config[:database], Rails.root) if defined?(Rails.root)
        dirname = File.dirname(config[:database])
        Dir.mkdir(dirname) unless File.directory?(dirname)
      end

      db = SQLite3::Database.new(
        config[:database].to_s,
        :results_as_hash => true
      )

      db.busy_timeout(ConnectionAdapters::SQLite3Adapter.type_cast_config_to_integer(config[:timeout])) if config[:timeout]

      ConnectionAdapters::SQLite3Adapter.new(db, logger, nil, config)
    rescue Errno::ENOENT => error
      if error.message.include?("No such file or directory")
        raise ActiveRecord::NoDatabaseError
      else
        raise
      end
    end