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get info from object_id


Hi All,

apologies in advance if this is so stupid for you (my feeble mind is working feebly :)

so here goes,

Given an object_id, how do i get back the object that id stands for?

i'm looking for something like,

    a=[1,2,3]
    x=a.object_id
    b=Object.id_to_object(x)    #-> returns object pointed by a wc [1,2,3]
    b.class                     #-> returns Array
    b                                   #-> [1,2,3]
    b == a                              #-> true

thank you and kind regards -botp

Pea wrote:
> Given an object_id, how do i get back the object that id stands for?

ObjectSpace._id2ref is what you're looking for.

--
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407

From: Joel VanderWerf [mailto:v@path.berkeley.edu] :
# > Given an object_id, how do i get back the object that id stands for?
#
# ObjectSpace._id2ref is what you're looking for.

yikes! objectspace is the key word. should have done qri object -Osa in the first place. arrghhh..

many thanks again, Joel.
kind regards -botp

Pea wrote:
> yikes! objectspace is the key word. should have done qri object -Osa in the first place. arrghhh..

Thanks for reminding me about qri.

What does the "s" do? I see "a", but not "s" in the help for -O:

     -O, --order ORDER                Specify lookup order.
                                      (default: eEnNpPxX)
                                      Uppercase: case-indep.
                                      e:exact n:nested p:partial
(completion)
                                      x:nested and partial m:complete
namespace
                                      f:complete both class and method
                                      a:match method name anywhere

--
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407

From: Joel VanderWerf [mailto:v@path.berkeley.edu] :
# Pea wrote:

# > yikes! objectspace is the key word. should have done qri
# object -Osa in the first place. arrghhh..
#
# Thanks for reminding me about qri.
#
# What does the "s" do? I see "a", but not "s" in the help for -O:
#
#      -O, --order ORDER                Specify lookup order.
#                                       (default: eEnNpPxX)
#                                       Uppercase: case-indep.
#                                       e:exact n:nested p:partial
# (completion)
#                                       x:nested and partial m:complete
# namespace
#                                       f:complete both class and method
#                                       a:match method name anywhere

Oh, i'm sorry, i tend to mixup qri options with ls (i usually do ls -oSa). I used -S for full text, so that should be

  qri object -SOa

I usually pipe it then to less, since it's full text search output,

  qri object -SOa | less

On this current case, i should have taken a quick peek first by piping it to grep like eg,

C:\family\ruby>qri object -SOa | less | grep -i object_id
..    r = ObjectSpace._id2ref(s.object_id)   #=> 'I am a string'
.. ethod: object_id
.. Document-method: object_id
and no two active objects will share an id. Object#object_id is a
share an id. Object#object_id is a different concept from the :name
Found in system  Object#object_id
objects will share an id. Object#object_id is a different concept
and no two active objects will share an id. Object#object_id is a
share an id. Object#object_id is a different concept from the :name
.. Soon-to-be deprecated version of Object#object_id.
..     p res.body.object_id   # 538149362
..     p res.read_body.object_id   # 538149362

There, first hit hints at id2ref..  

btw, this is qri, wc is the slower brother of the faster fri; but then qri is a lot faster than the original ri, but you were much faster :), so..

thanks and kind regards -botp

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