Rails - Apr 2005 - Rand number/letter

I make this function to get a rand name...
    def self.newRandName
        return String(1000000+rand(8999999))
    end   

This return numbers from 0000000 to 9999999.
How is the function to return letters from ''aaaaaaa'' to
''zzzzzzz'' ?

Thank''s

-- 

Pedro C. Valentini
pedro-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org
+55 (21) 8708-8035

Maybe there''s an easier way, but for random capital letters,
I''ve used:

randstring = ""
for i in 1..45
    randstring = randstring + (rand(26)+65).chr
end



On Apr 8, 2005 1:34 PM, Pedro Valentini
<pedro-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org>
wrote:
> 
> I make this function to get a rand name...
>    def self.newRandName
>        return String(1000000+rand(8999999))
>    end
> 
> This return numbers from 0000000 to 9999999.
> How is the function to return letters from ''aaaaaaa'' to
''zzzzzzz'' ?
> 
> Thank''s
> 
> --
> 
> Pedro C. Valentini
> pedro-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org
> +55 (21) 8708-8035
> 
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

On Apr 8, 2005 4:10 PM, Chris Trimble
<trimbo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Maybe there''s an easier way, but for random capital letters,
I''ve used:
> 
> randstring = ""
> for i in 1..45
>     randstring = randstring + (rand(26)+65).chr
> end
Well, in perl, I''d do something like this:

@chars = ("a".."z") # or whatever characters you want

$string .= $chars[int rand @chars] for (1 .. 45);

Though I''m not entirely sure how this would be translated into ruby.

-- 
Urban Artography
http://artography.ath.cx

Pedro,

Try this:

def self.newRandName
  x=''''
  7.times { x += (?a+rand(26)).chr }
  return x
end

Also, your number routine doesn''t really return 0000000-9999999,
right?  It returns 1000000-9999999.  It might not matter for your
application, but this will return what you want (a zero-padded
seven digit number):

def self.newRandNumber
  sprintf("%07d",rand(9999999))
end

Andrew


On Fri, Apr 08, 2005 at 05:34:01PM -0300, Pedro Valentini
wrote:
> 
> I make this function to get a rand name...
>    def self.newRandName
>        return String(1000000+rand(8999999))
>    end   
> 
> This return numbers from 0000000 to 9999999.
> How is the function to return letters from ''aaaaaaa'' to
''zzzzzzz'' ?

On 8 Apr 2005, at 21:34, Pedro Valentini wrote:
> How is the function to return letters from ''aaaaaaa'' to
''zzzzzzz'' ?
Here''s what I use to generate simple passwords:

def random_password
   chars = [''A''..''Z'', ''a''
.. ''z'', ''0'' ..
''9''].collect{|r| r.to_a
}.flatten
   (1..8).collect { chars[rand(chars.length)] }.join
end

Change the list of characters and the size of the range to suit your 
needs.

Cheers,
Alisdair