> On Thu, Mar 12, 2009 at 09:20, Jerry Rocteur <mac...@rocteur.cc> wrote:
>> Hi,
>>
>> I'm trying to tie this kind of hash into SDBM
>>
>> $hash_of_baseline{$hdr_user_name} = { user_name => $hdr_user_name,
>> passwd => $hdr_user_passwd,
>> ...
>> ...
>> groups => [ @info_group_names ] };
>>
>> I can store it but when I read it back I get.
>>
>> Can't use string ("HASH(0x1db393b0)") as a HASH ref while "strict refs" in
>> use at
>>
>> I think I understand from what I've googled that I can't use SDBM for this
>> kind of structure.
>>
>> I searched around and found MLDBM.
>>
>> I'm looking for advice, is this the best solution or am I on the wrong track
>> ?
> snip
>
> DBM files can only store simple values like strings and numbers. You
> are trying to store a complex data structure in one. The general
> method of solving this problem is to use the Storable module* to
> serialize the data structure as a string before storing it in the DBM,
> or to use a module like DBM::Deep** that automates this for you.
> [...]
> [...]
>
> print Dumper \%deep, \%new;
>
> * http://perldoc.perl.org/Storable.html
> ** http://search.cpan.org/dist/DBM-Deep/lib/DBM/Deep.pod
Thanks very much Chas. I really appreciate this. I am glad I asked the question
to the list.
I will look into the easiest solution, I don't like having to integrate a new
module into the system build unless
absolutely necessary so I will study it carefully.
My idea of storing into DBM was to speed up initial access to the data!
Have a GREAT weekend,
Jerry
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