How to read radio_button value on rails 3?

Question

I would like to read the selected value of radiobuttons on my Form.Now null value saved in my DB. Here is my radio buttons:

        <%= w.label :Artikel ,'der' %><%= w.radio_button :Artikel %>
        <%= w.label :Artikel ,'die' %><%= w.radio_button :Artikel %>
        <%= w.label :Artikel ,'das' %><%= w.radio_button :Artikel %>

and this is my Controlle:

def create
    @word=Word.create(params[:word])
    if @word.save
      redirect_to :action => 'index'
    else
      render :action => 'new'
    end
  end

Thank you for your helps

Dylan Markow · Accepted Answer · 2011-08-29 16:20:59Z

1

You need to give each of your radio_button items a second parameter with the value to use:

<%= w.radio_button :Artikel, "der" %>
<%= w.radio_button :Artikel, "die" %>
<%= w.radio_button :Artikel, "das" %>

Then, params[:word][:Artikel] will contain whichever one is selected.

answered Aug 29, 2011 at 16:20

Dylan Markow

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dexter · Accepted Answer · 2011-08-29 16:39:32Z

1

The view should have been

<%= w.label :Artikel ,'der' %><%= w.radio_button 'artikel', 'der' %>
<%= w.label :Artikel ,'die' %><%= w.radio_button 'artikel', 'die' %>
<%= w.label :Artikel ,'das' %><%= w.radio_button 'artikel', 'das' %>

I assume an attribute called artikel exists in the Word model.

edited Aug 29, 2011 at 16:39

answered Aug 29, 2011 at 16:19

dexter

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2 Comments

Dylan Markow Over a year ago

Since he's probably using something like form_for @word do |w|, you don't need the 'word' parameters.

dexter Over a year ago

oh yes.. you are right.. i confused it with radio_button_tag. will update the answer

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