Is there a library/mechanism for an object/hash hybrid?

[dtrusty]

Hi,

There are times when I want to store items in a hash, and yet refer
the items
using class/object method syntax.

For example, I may want to do this:
myhash['aaa'] = 'bbb'
and then be able to refer to the 'aaa' element either as
myhash['aaa']
--or--
myhash.aaa

I started writing my own class to do this, but I wanted to check to
see if anyone had
already done so.

What do you think?

Thanks,

David

 

[Jan Friedrich]

Hi,

There are times when I want to store items in a hash, and yet refer
the items
using class/object method syntax.

What do you think?

http://ruby-doc.org/stdlib/libdoc/ostruct/rdoc/classes/OpenStruct.html

regards
Jan

 

[Gary Wright]

http://ruby-doc.org/stdlib/libdoc/ostruct/rdoc/classes/OpenStruct.html

OpenStruct doesn't define access via the indexing method:

info = OpenStruct.new

info.name = 'Gary'
info[:name] # undefined method


Gary Wright

 

[Tim Hunter]

OpenStruct doesn't define access via the indexing method:

info = OpenStruct.new

info.name = 'Gary'
info[:name] # undefined method

Hal Fulton wrote a class called "SuperStruct". Maybe it's what you're
looking for: http://sstruct.rubyforge.org/.

 

[Trans]

Facet's OpenObject

gem install facets

require 'facet/openobject'

oo = OpenObject.new

oo.a = 1

oo[:a] #=> 1

T.

 

[Jan Friedrich]

OpenStruct doesn't define access via the indexing method:

info = OpenStruct.new

info.name = 'Gary'
info[:name] # undefined method

It's Ruby, define it.
class OpenStruct
def [] arg
self.send arg
end


regards,
Jan

 

[Gary Wright]

OpenStruct doesn't define access via the indexing method:

info = OpenStruct.new

info.name = 'Gary'
info[:name] # undefined method

It's Ruby, define it.

Of course. I was just pointing out that OpenStruct didn't
actually provide the features that the OP had asked for.

You can always roll your own.


Gary Wright

 

[Rick DeNatale]

Hi,

There are times when I want to store items in a hash, and yet refer
the items
using class/object method syntax.

For example, I may want to do this:
myhash['aaa'] = 'bbb'
and then be able to refer to the 'aaa' element either as
myhash['aaa']
--or--
myhash.aaa

I started writing my own class to do this, but I wanted to check to
see if anyone had
already done so.

I just read about this in a blog yesterday:
http://www.oreillynet.com/ruby/blog/2007/03/camping_hashwithreallyindiffer.html

The camping framework has a HashWithIndifferentAccess which does this.

Not to be confused with the class HashWithIndifferentAccess in Rails
(actually in ActiveSupport)

--
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/

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