Rails - Feb 2008 - rendering partials with local variables questions

Hello ... I am using the acts_as_ratable plugin, but am trying to
tweak it a bit ...

I have this code in my view:
<%= render :partial => "ratings/rate", :locals => { :asset
=>
current_user, :thing_id => @thing.id } %>

And in my Ratings controller I have:
 def rate
    return unless logged_in?

    rateable = @rateable_class.find(params[:id])
    thingID = thing_id

    # Delete the old ratings for current user
    Rating.delete_all(["rateable_type = ? AND rateable_id = ? AND
user_id = ? AND errand_id = ?", @rateable_class.base_class.to_s,
params[:id], @current_user.id,  thing_id])
    rateable.add_rating Rating.new(:rating =>
params[:rating], :user_id => @current_user.id, :errand_id => thing_id)

    render :update do |page|
      page.replace_html "star-ratings-block-#{rateable.id}", :partial
=> "rate", :locals => { :asset => rateable, : thing_id =>
thingID}
      page.visual_effect :highlight, "star-ratings-block-
#{rateable.id}"
    end

  end

in the RJS file I have:
page.replace_html "star-ratings-block-#{current_user.id}", :partial
=>
''/ratings/rate'', :locals => { :asset => current_user,
:thing_id =>
@thing.id }

When I click on a rating, which renders the partial I get this error:

NameError (undefined local variable or method `thing_id'' for
#<RatingsController:0xb7b40f48>):

Why isn''t the local variable I am passing from the partial available
to me in my controller?

Thanks for any insight!!!

LAB
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On 28 Feb 2008, at 03:14, LAB wrote:
>
> Hello ... I am using the acts_as_ratable plugin, but am trying to
> tweak it a bit ...
>
> I have this code in my view:
> <%= render :partial => "ratings/rate", :locals => {
:asset =>
> current_user, :thing_id => @thing.id } %>
>
> And in my Ratings controller I have:
> def rate
>    return unless logged_in?
>
>    rateable = @rateable_class.find(params[:id])
>    thingID = thing_id
Are you sure the error doesn''t occur here ? thing_id seems to be  
defined nowhere.

Fred
>
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@thing.id is defined in the same view that I am rendering the partial
in ... just above my render :partial code.  :thing_id, is a new local
variable I was trying to pass through the partial.  So ......

<%= render :partial => "ratings/rate", :locals => { :asset
=>
current_user, :thing_id => @thing.id } %>

I am passing :thing_id = a number, lets say 4, and I want to use that
number 4 in the Ratings controller.  Basically, I''m just trying to get
this information up to the Ratings Controller from the view level.
Maybe there is another way?  But I still think this should work, and I
probably have some sort of syntax wrong?

Thanks for any help!

On Feb 28, 6:14 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On 28 Feb 2008, at 03:14, LAB wrote:
>
>
>
> > Hello ... I am using the acts_as_ratable plugin, but am trying to
> > tweak it a bit ...
>
> > I have this code in my view:
> > <%= render :partial => "ratings/rate", :locals => {
:asset =>
> > current_user, :thing_id => @thing.id } %>
>
> > And in my Ratings controller I have:
> > def rate
> >    return unless logged_in?
>
> >    rateable = @rateable_class.find(params[:id])
> >    thingID = thing_id
>
> Are you sure the error doesn''t occur here ? thing_id seems to be  
> defined nowhere.
>
> Fred
>
>
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On 28 Feb 2008, at 12:52, LAB wrote:
>
> @thing.id is defined in the same view that I am rendering the partial
> in ... just above my render :partial code.  :thing_id, is a new local
> variable I was trying to pass through the partial.  So ......
>
In the source that you pasted you were access thing_id right at the  
top of the controller. Is that the line throwing the error ?

Fred

> <%= render :partial => "ratings/rate", :locals => {
:asset =>
> current_user, :thing_id => @thing.id } %>
>
> I am passing :thing_id = a number, lets say 4, and I want to use that
> number 4 in the Ratings controller.  Basically, I''m just trying to
get
> this information up to the Ratings Controller from the view level.
> Maybe there is another way?  But I still think this should work, and I
> probably have some sort of syntax wrong?
>
> Thanks for any help!
>
> On Feb 28, 6:14 am, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>> On 28 Feb 2008, at 03:14, LAB wrote:
>>
>>
>>
>>> Hello ... I am using the acts_as_ratable plugin, but am trying to
>>> tweak it a bit ...
>>
>>> I have this code in my view:
>>> <%= render :partial => "ratings/rate", :locals
=> { :asset =>
>>> current_user, :thing_id => @thing.id } %>
>>
>>> And in my Ratings controller I have:
>>> def rate
>>>    return unless logged_in?
>>
>>>    rateable = @rateable_class.find(params[:id])
>>>    thingID = thing_id
>>
>> Are you sure the error doesn''t occur here ? thing_id seems to
be
>> defined nowhere.
>>
>> Fred
>>
>>
> >

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LAB wrote:
> <%= render :partial => "ratings/rate", :locals => {
:asset =>
> current_user, :thing_id => @thing.id } %>
> 
> I am passing :thing_id = a number, lets say 4, and I want to use that
> number 4 in the Ratings controller.  Basically, I''m just trying to
get
Remember that the flow is:

Controller action
Render view
Send view to browser

So, your *instance* variables you set in the controller are visible to 
your view.  Anything set in the view can only be used in the view before 
it is sent to the user.

If you want a value to pass to the browser then back to the controller 
when a link or button is clicked, then you can add the association to 
the options in an appropriate link_to or button_to call in the view (or 
use a hidden field).  The value can then be used in the next controller 
action.  So, if you set :thing_id in a link_to, you can see it as 
params[:thing:id] next time.

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

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Mark Bush wrote:
> params[:thing:id] next time.
That''s params[:thing_id] of course.

-- 
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Thanks, Mark! That sounds like my problem.  I didn''t understand that
the :locals in the :partial can''t really be used by the controller.
Still not intuitive to me ... but okay!

Fred - the error is at the top of my controller:

NameError (undefined local variable or method `thing_id'' for
#<RatingsController:0xb7b40f48>):/app/controllers/
ratings_controller.rb:9:in `rate''

line 9 ... which is:   thingID = thing_id

This is where I am first trying to use the local variable thing_id in
the Ratings Controller.

If leveraging the :locals can be done, that would have been much
prettier, but I will try passing the thing_id up to the Ratings
Controller with a link_to or a form.

Thanks!!!
LAB



On Feb 28, 8:26 am, Mark Bush
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Mark Bush wrote:
> > params[:thing:id] next time.
>
> That''s params[:thing_id] of course.
>
> --
> Posted viahttp://www.ruby-forum.com/.
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