Re: :symbol vs CONSTANT choice
Charles Hixson <charleshixsn <at> earthlink.net>
2012-08-19 06:32:57 GMT
On 08/17/2012 07:50 AM, Robert Klemme wrote:
> On Thu, Aug 16, 2012 at 11:37 PM, Charles Hixson
> <charleshixsn <at> earthlink.net> wrote:
>> I have a list of about 12 items that I wish to repeatedly store as part of a
>> record in a file. The obvious way to do this is to define a bunch of
>> constant terms with values [1 .. 12]. But when I want to use them in the
>> program, symbols would be more convenient. Is there a better way to do this
>> than just defining the constants, and using a pair of functions to convert
>> to and from symbols?
> There are some approaches to do enums in Ruby out there, e.g.
> You'll find plenty more with your favorite search engine.
> Other than that the two function approach probably works as well. Or
> you use two Hashes for both directions and not two functions.
> Kind regards
Thanks. I pulled two versions of enum out of those links, that look
like they might be what I want. It will be a couple of weeks yet, and I
don't know whether the bit manipulation version (class) will be what I
need or whether I'll go with the simpler (module) version. One of them
will clearly be more suited to the situation than just defining a bunch