Rails - Nov 2005 - Newbie question: Populating a selection list with numbers

Hi,

What is a nice, easy, one-line method of populating a selection list 
with numbers in rails?

So far I can populate an array with the numbers I want using a loop:

<% opts = []
    26.times do |x|
        opts << [x, x]
    end
-%>

and then use the opts array for the options in the select helper.

But is there a better way?

Thanks for any suggestions,
Richard

-- 
Posted via http://www.ruby-forum.com/.

i just learned this

<% opts = Array.new(26) {|x| [x,x]} %>

perhaps it could be used this way too? (not positive)

<%= select ''talent'', ''age'', Array.new(26)
{|x| [x,x]}  %>

hope this helps,
Oliver

2005/11/21, Richard
<richard.mcgrath-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> Hi,
>
> What is a nice, easy, one-line method of populating a selection list
> with numbers in rails?
>
> So far I can populate an array with the numbers I want using a loop:
>
> <% opts = []
>     26.times do |x|
>         opts << [x, x]
>     end
> -%>
>
> and then use the opts array for the options in the select helper.
>
> But is there a better way?
>
> Thanks for any suggestions,
> Richard
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Richard <richard.mcgrath@...> writes:
> What is a nice, easy, one-line method of populating a selection list 
> with numbers in rails?
> 
> So far I can populate an array with the numbers I want using a loop:
> 
> <% opts = []
>     26.times do |x|
>         opts << [x, x]
>     end
> -%>
> 
> and then use the opts array for the options in the select helper.
> 
> But is there a better way?
Here''s how I do it. . .


<%= select_tag :choice, options_for_select(0..30, @params[:choice])  %>

--Forrest

Thanks Oliver, that worked a treat!

(Using the method inside the select-tag helper function)

Regards,
Richard

ol1barn3s wrote:
> i just learned this
> 
> <% opts = Array.new(26) {|x| [x,x]} %>
> 
> perhaps it could be used this way too? (not positive)
> 
> <%= select ''talent'', ''age'',
Array.new(26) {|x| [x,x]}  %>
> 
> hope this helps,
> Oliver
> 
> 2005/11/21, Richard
<richard.mcgrath-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:

-- 
Posted via http://www.ruby-forum.com/.

It''s probably still not quite what you''re after, but you can
shorten
your code to:

     (1..26).collect {|x| [x, x] }

and put that directly inside the call to select.

Cheers,

Pete Yandell


On 22/11/2005, at 9:50 AM, Richard wrote:
> Hi,
>
> What is a nice, easy, one-line method of populating a selection list
> with numbers in rails?
>
> So far I can populate an array with the numbers I want using a loop:
>
> <% opts = []
>     26.times do |x|
>         opts << [x, x]
>     end
> -%>
>
> and then use the opts array for the options in the select helper.
>
> But is there a better way?
>
> Thanks for any suggestions,
> Richard
>
> -- 
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

or just (1..26).to_a

-r

--
Ryan Raaum
http://www.rockefeller.edu -- Bacterial Pathogenesis and Immunology
http://www.worldmartial.com -- Black Belt Instructor
http://locomotive.sourceforge.net -- Self contained one-click Rails for Mac OS X

hehehe

god bless ruby... still a beginner in it, but already love it

2005/11/22, Ryan Raaum
<ryan.raaum-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> or just (1..26).to_a
>
> -r
>
> --
> Ryan Raaum
> http://www.rockefeller.edu -- Bacterial Pathogenesis and Immunology
> http://www.worldmartial.com -- Black Belt Instructor
> http://locomotive.sourceforge.net -- Self contained one-click Rails for Mac
OS X
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

thank goodness for search feature working well!

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actually im stuck again....what is the correct line of code if i 
initialize my form with a model called :temp with a filed called 
''num_days''?

i have this but not working

<%= select_tag :temp, options_for_select(0..30, :expnum)  %>


i am getting a undefined method `stringify_keys!'' for
"5":String....

thanks

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