From: Frank Church <vfcforums@...>
Date: 2007-06-26T10:04:16+09:00
Subject: Some help needed with understanding ruby hashes


If a ruby hash rubyhash has a key such as "hashkey" is there a way of
retrieving the value by the expression rubyhash["hashkey"] ?

It only seems logical that is rubyhash.has_key?("hashkey") returns true
rubyhash["hashkey"] should return a value, but it always gives an error.

I know the same can be achieved via with rubyhash.values_at("hashkey")
but it appears so inelegant to me.

I am trying to create an erb template which will use the hash keys here
such as directory1 directory2 for each directory and the for each
directory use hash key s such as directory, archivename etc, but I find
values_at rather inelegant.

I sorely hope there is some aspect to ruby hashes syntax that I am
missing.

directories      :
    directory1   :
       directory : /thisdirectory/yada/yada/yada
       archivename : archivename01
       updatemode  : updatemode01
       encryptkey : encryptkey01
       configdir : configdir01
       workdir   : workingdir01
       storagedir : storagedir01
       logsdir : logsdir01

    directory2   :
       directory : /thisdirectory/yada2/yada2/yada2
       archivename : archivename02
       updatemode  : updatemode02
       encryptkey : encryptkey02
       configdir : configdir02
       workdir   : workingdir02
       storagedir : storagedir02
       logsdir : logsdir02

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