Ruby on Rails: create a hash for select menu from array

Question

I have an array:

@positions = ["external_footer", "external_top_menu", "external_side_menu"]

I want to create a select box so it produces humanized value for option and original value for option value. So i want something like that:

<option value="external_footer">External Footer</option>

Right now i am doing it like so:

= f.input :position, collection: @positions.collect{|position| { position => position.humanize}}

But it does not work.

Mind explaining how it does not work? Does it crash or display nothing or not humanize the text? Also are you using SimpleForm? — Bad Request
– Bad Request, Commented Nov 12, 2012 at 5:39
It does not give me an error, i just produces "external_footer" => External Footer as a text for select box... — Tamik Soziev
– Tamik Soziev, Commented Nov 12, 2012 at 5:43

Tamik Soziev · Accepted Answer · 2012-11-12 05:45:10Z

3

I found a solution:

= f.input :position, collection: @positions.collect{|p| [ p.humanize, p ] }

answered Nov 12, 2012 at 5:45

Tamik Soziev

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Thanh · Accepted Answer · 2012-11-12 05:05:42Z

0

Do you have a @positions in your controller? , if not, i think you should change:

positions = ["external_footer", "external_top_menu", "external_side_menu"]

to:

@positions = ["external_footer", "external_top_menu", "external_side_menu"]

And you can try this:

= f.input :position, collection: @positions.collect { |position| position.humanize }

answered Nov 12, 2012 at 5:05

Thanh

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1 Comment

Tamik Soziev Over a year ago

Sorry i did a typo in my example code, i have "positions" variable set as global.

Bad Request · Accepted Answer · 2012-11-12 05:48:41Z

0

First of all, your syntax may be wrong - you have one extra pair of braces. Try = f.input :position, collection: @positions.collect{|position| position.humanize} or = f.input :position, collection: @positions.collect(&:humanize)

Assuming you're using SimpleForm, it's possible it doesn't know what method to call for the option label and value. Try passing the :label_method and :value_method explicitly, or pass humanize as a lambda, as described here.

answered Nov 12, 2012 at 5:48

Bad Request

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