How do you save the contents of an object?

ruby-talk
1

Is there an easy way to save the contents of an object in ruby?

This is hard to google, so I am posting it up. I just need a general
idea (if anyoen has it), you don't have to spell it out for me.

···

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Posted via http://www.ruby-forum.com/.

2

Yes, it's called Marshaling.

# Create a trivial object
a = "Object to save"

# Save it to stored_object
stored_object = Marshal.dump(a)

# Destroy "a"
a = nil

# Restore the object
a = Marshal.load(stored_object)

You can read more about it here:
http://ruby-doc.org/core/classes/Marshal.html

Ruby makes it a breeze to implement. You can also use YAML to save your
Marshaled object data via YAML's dump and load methods. See more about that
here: http://ruby-doc.org/core/classes/YAML.html

Hope this helps!

···

On 10/23/06, Steve Quezadas <steve@tripperjones.com> wrote:

Is there an easy way to save the contents of an object in ruby?

This is hard to google, so I am posting it up. I just need a general
idea (if anyoen has it), you don't have to spell it out for me.

--
Posted via http://www.ruby-forum.com/\.

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President, OCS Solutions, Inc. - Web Hosting and Development

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3

Steve Quezadas wrote:

Is there an easy way to save the contents of an object in ruby?

This is hard to google, so I am posting it up. I just need a general idea (if anyoen has it), you don't have to spell it out for me.

ri Marshal
ri YAML

4

Is there an easy way to save the contents of an object in ruby?

Check out these.

http://www.ruby-doc.org/core/classes/Marshal.html
http://www.ruby-doc.org/core/classes/YAML.html

This is hard to google, so I am posting it up. I just need a general

idea (if anyoen has it), you don't have to spell it out for me.

--
Posted via http://www.ruby-forum.com/\.

HTH,
Michael Guterl

···

On 10/23/06, Steve Quezadas <steve@tripperjones.com> wrote:

5

Steve Quezadas wrote:

Is there an easy way to save the contents of an object in ruby?

As a further aside to saving with yaml, yet another fantastic little
goody that RoR provides is the method .to_yaml() ..

ilan@iberci-pc:~/rails$ script/console
Loading development environment.

"sample".to_yaml

=> "--- sample\n"

···

--
Posted via http://www.ruby-forum.com/\.

6

Steve Quezadas wrote:

Is there an easy way to save the contents of an object in ruby?

This is hard to google, so I am posting it up. I just need a general
idea (if anyoen has it), you don't have to spell it out for me.

I posted an article/tutorial on marshalling objects and saving them to
files last night,
you may want to throw a quick look at it as it sounds applicable to your
question...

http://rails.co.za/articles/2006/10/23/saving-ruby-objects-to-disc

Hope it helps!
Gustav Paul
gustav@rails.co.za

7

Use YAML you can store/load the content of a Ruby object without any
difficulty.

Please visit YAML.rb at http://yaml4r.sourceforge.net/
The codebook is of great use to give you what is going on:
http://yaml4r.sourceforge.net/cookbook/

Steve Quezadas wrote:

···

Is there an easy way to save the contents of an object in ruby?

This is hard to google, so I am posting it up. I just need a general
idea (if anyoen has it), you don't have to spell it out for me.

--
Posted via http://www.ruby-forum.com/\.

8

You don't need RoR for that. Merely including yaml will give objects
the to_yaml method:

irb(main):001:0> require 'yaml'
=> true
irb(main):002:0> puts({"one"=>1,"two"=>2,"three"=>3}.to_yaml)

···

On 24/10/06, Ilan Berci <coder68@yahoo.com> wrote:

Steve Quezadas wrote:
> Is there an easy way to save the contents of an object in ruby?
>

As a further aside to saving with yaml, yet another fantastic little
goody that RoR provides is the method .to_yaml() ..

ilan@iberci-pc:~/rails$ script/console
Loading development environment.
>> "sample".to_yaml
=> "--- sample\n"

---
three: 3
two: 2
one: 1
=> nil

Farrel

9

The built-in Marshal class is designed for this very thing, and
anecdotal evidence says it's faster than YAML. YAML has the advantage
of being readable to the naked eye, however. Here's a good discussion
on Marshal vs. YAML:

http://blade.nagaokaut.ac.jp/cgi-bin/vframe.rb/ruby/ruby-talk/99119?99004-101444

···

On 10/25/06, guoxianghao@gmail.com <guoxianghao@gmail.com> wrote:

Use YAML you can store/load the content of a Ruby object without any
difficulty.

Please visit YAML.rb at http://yaml4r.sourceforge.net/
The codebook is of great use to give you what is going on:
http://yaml4r.sourceforge.net/cookbook/

Steve Quezadas wrote:
> Is there an easy way to save the contents of an object in ruby?
>
> This is hard to google, so I am posting it up. I just need a general
> idea (if anyoen has it), you don't have to spell it out for me.
>
> --
> Posted via http://www.ruby-forum.com/\.