On Fri, Jun 29, 2012 at 11:37 PM, Henrique L. <[email protected]> wrote:
> I've been trying hard to find a smart way of serializing objects using
> the Marshal module, but there is a few issues which I need some help to
> fix.
>
> I'm getting statuses from the Twitter stream and saving them all in
> separated files (that can contain one or more tweet objects) using
> Marshal.dump (the file is opened using
> File.new("./src/tweets/#{filename}.adl", "a+b"), where filename is a
> string generated from the tweet id), but when I try to unserialize the
> tweets all at once I get the following error:
>
> test.rb:8: in 'restore: incompatible marshal file format (can't be read)
> (TypeError)
> format version 4.8 required; 128.0 given
> [...]
>
> Here's the code that tries to unserialize the tweets from the file:
>
>
> result = Dir.glob("./tweets/*.adl")
> result.each do |dir|
> file = File.new(dir, "r")
> tweets = Array.new
> until file.eof?
> tweets << Marshal.restore(file)
> end
> end
Apart from the binmode issue that Bartosz mentioned you are not
closing files, you use a useless #eof? and you have the scope of
"tweets" wrong. I'd do
tweets = Dir["tweets/*.adl"].map do |dir|
File.open(dir, "rb") {|file| Marshal.restore(file)}
end
Kind regards
robert
--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/
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