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# File activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb, line 100
      def initialize(...)
        super

        @memory_database = false
        case @config[:database].to_s
        when ""
          raise ArgumentError, "No database file specified. Missing argument: database"
        when ":memory:"
          @memory_database = true
        when /\Afile:/
        else
          # Otherwise we have a path relative to Rails.root
          @config[:database] = File.expand_path(@config[:database], Rails.root) if defined?(Rails.root)
          dirname = File.dirname(@config[:database])
          unless File.directory?(dirname)
            begin
              Dir.mkdir(dirname)
            rescue Errno::ENOENT => error
              if error.message.include?("No such file or directory")
                raise ActiveRecord::NoDatabaseError.new(connection_pool: @pool)
              else
                raise
              end
            end
          end
        end

        @config[:strict] = ConnectionAdapters::SQLite3Adapter.strict_strings_by_default unless @config.key?(:strict)
        @connection_parameters = @config.merge(database: @config[:database].to_s, results_as_hash: true)
        @use_insert_returning = @config.key?(:insert_returning) ? self.class.type_cast_config_to_boolean(@config[:insert_returning]) : true
      end
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