Rails - Nov 2008 - Help concatenating letters and numbers

Hello...

I need to do the following in rails:

I have a string with the following composition: AAA-BBB-2008-000001

The first to groups are strings, named @string1 and @string2. The
third is the year, (reflected using Time.now.strftime("%Y")) and the
last part is an integer, @integer1.

I''m using a PostgreSQL 8 database and I need to put that composition
on a string.I have no problem with the string variables and the year.
The catch here is the integer, it increases everytime I do a new
registry and, when a new year comes, it resets to 1. More over, I need
the integer to be 6-digit.I don''t know how to do that, but I know the
logic of th increments:

When the integer is 10, I need it to be 000010; when it''s 100, 000100;
1000 => 001000 and so on.

And let''s suppose one of our string changes, for example. It also must
resets the integer to 1.

As you can see, it''s a unique composition.

As the id from the database keeps increasing, that number won''t work
on me. I need to set it apart, without using that number. And that
count must be kept, whenever I log in to my app.

Is it hard to do this stuff?

Greetings...

The Neurochild
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

you can use sprintf formatting for the integer:

 @integer1 = 10
 int_formatted = "%06d" % @integer1 # returns "000010"

I don''t understand the other requirements enough to help further


On Nov 11, 6:21 pm, The Neurochild
<neuroch...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hello...
>
> I need to do the following in rails:
>
> I have a string with the following composition: AAA-BBB-2008-000001
>
> The first to groups are strings, named @string1 and @string2. The
> third is the year, (reflected using Time.now.strftime("%Y")) and
the
> last part is an integer, @integer1.
>
> I''m using a PostgreSQL 8 database and I need to put that
composition
> on a string.I have no problem with the string variables and the year.
> The catch here is the integer, it increases everytime I do a new
> registry and, when a new year comes, it resets to 1. More over, I need
> the integer to be 6-digit.I don''t know how to do that, but I know
the
> logic of th increments:
>
> When the integer is 10, I need it to be 000010; when it''s 100,
000100;
> 1000 => 001000 and so on.
>
> And let''s suppose one of our string changes, for example. It also
must
> resets the integer to 1.
>
> As you can see, it''s a unique composition.
>
> As the id from the database keeps increasing, that number won''t
work
> on me. I need to set it apart, without using that number. And that
> count must be kept, whenever I log in to my app.
>
> Is it hard to do this stuff?
>
> Greetings...
>
> The Neurochild
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---