Rails - Oct 2012 - Check Bok Tag Checked Issue

I am new to RoR development and I am trying to set the checked value of a 
check_box_tag field, but no matter what I set the checked value to I get 
the box checked.

My controller is as follows:

    @all_ratings = [''G'', ''PG'',
''PG-13'', ''R'', ''NC-17'']
    @selected_ratings = params[:ratings] ? params[:ratings].keys : 
@all_ratings
    @rating_flags = []
    @all_ratings.each do |rating|
      if @selected_ratings.include?(rating)
        @rating_flags << "checked = true"
      else
        @rating_flags << "checked = false"
      end
    end

My view is the following:

  - @all_ratings.each do |rating|
    = rating
    = check_box_tag("ratings[#{rating}]", value = 1, 
"#{@rating_flags[@all_ratings.index(rating)]}")
  = submit_tag ''Refresh'', :id =>
''ratings_submit''

When the @rating_flags comes from the controller it has the following 
values according to the debugger:

   ["checked = false", "checked = true", "checked =
false", "checked =
false", "checked = false"]

And the values of the check boxes are as follows:

<form accept-charset="UTF-8" action="/movies"
id="ratings_form"
method="get"><div
style="margin:0;padding:0;display:inline">
<input name="utf8" type="hidden"
value="&#x2713;" /></div>
        Include:
        G
        <input checked="checked" id="ratings_G"
name="ratings[G]"
type="checkbox" value="1" />
        PG
        <input checked="checked" id="ratings_PG"
name="ratings[PG]"
type="checkbox" value="1" />
        PG-13
        <input checked="checked" id="ratings_PG-13"
name="ratings[PG-13]"
type="checkbox" value="1" />
        R
        <input checked="checked" id="ratings_R"
name="ratings[R]"
type="checkbox" value="1" />
        NC-17
        <input checked="checked" id="ratings_NC-17"
name="ratings[NC-17]"
type="checkbox" value="1" />
        <input id="ratings_submit" name="commit"
type="submit"
value="Refresh" />
      </form>

I have not added anything to the model it is just inheriting from 
ActiveRecord::Base.

It looks as if the values are being saved in the controller, because if I 
make changes to the check boxes and refresh I get the expected result.

The only thing that does not work is the checked value of the check boxes.

Any help would be greatly appreciated.

Thanks

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On Sunday, October 21, 2012 1:56:34 PM UTC+1, Stephen Harnois
wrote:
>
>   - @all_ratings.each do |rating|
>     = rating
>     = check_box_tag("ratings[#{rating}]", value = 1, 
> "#{@rating_flags[@all_ratings.index(rating)]}")
>
Rails is expecting a truthy value: false or nil if the box shouldn''t be
checked, or anything else to make the box checked. It isn''t expecting
an
html attribute string. You''re passing a string which always counts as
true,
since it is neither falsde nor nil. If you 
use @selected_ratings.include?(rating) instead that should do the trick.

Fred

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