# Auto rotating between (will\_)paginated objects?

**URL:** <https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101>\
**Category:** Rails\
**Created:** [May 30, 2008, 7:09pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101 "2008-05-30T19:09:03Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![heimdull](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f4b2a3/32.png) [@heimdull](https://www.ruby-forum.com/u/heimdull)\
**Post date:** [May 30, 2008, 7:09pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101/1 "2008-05-30T19:09:03Z")

</div>

Ok lets see if I can ask this question in a way that makes sense…

I have a website that has a testimonial box on the front page that  
show one testimonial at a time. I pull the testimonials using  
will\_paginate and 1 object for 1 page. There is next | prev links  
under this box that uses ajax to pull the next object. This works  
great and I’m happy with this solution but now I would like to auto  
rotate this testimonial box if the user do not press the next link?

I looked at a few solutions but could not get them to work correctly.

The closest I got was using periodically\_call\_remote but when I put  
this in my partial it looks like it adds a new script every time it  
updates ? I had it set to 10 seconds and after 10 seconds it started  
changing faster and faster… until it was just flashing…

Any ideas?

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<div class="post-metadata">

**Author:** ![heimdull](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f4b2a3/32.png) [@heimdull](https://www.ruby-forum.com/u/heimdull)\
**Post date:** [May 30, 2008, 7:14pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101/2 "2008-05-30T19:14:20Z")

</div>

> The closest I got was using periodically\_call\_remote but when I put  
> this in my partial it looks like it adds a new script every time it  
> updates ? I had it set to 10 seconds and after 10 seconds it started  
> changing faster and faster… until it was just flashing…

Sure, if the periodically\_call\_remote is part of your partia, then it’ll  
be installed over and over again.  
Split your partial and don’t resend the periodically\_call\_remote with  
every ajax response

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<div class="post-metadata">

**Author:** ![heimdull](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f4b2a3/32.png) [@heimdull](https://www.ruby-forum.com/u/heimdull)\
**Post date:** [May 30, 2008, 7:30pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101/3 "2008-05-30T19:30:52Z")

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I knew there was something I left out of the initial post… 🙂 Since  
the setup uses will\_paginate I have to pass the ‘next\_page’ page to  
the ajax\_call or else the call that goes here :

def paginate  
@testimonial = Testimonial.paginate(  
:page =\> params[:page],  
:conditions =\> “testimonial\_type = ‘customer’ AND frontpage =  
1”)

```
respond_to do |format|
  format.js { testimonial_crossfade }
end

```

end

and gives the same testimonial

here is the remote call

\<%= periodically\_call\_remote(:url =\> {:action =\>  
‘paginate’}, :frequency =\> 5)%\>

so what I was trying todo was to use the will\_paginate helper  
next\_page like this:

\<%= periodically\_call\_remote(:url =\> {:action =\> ‘paginate’, :page =\>  
@testimonial.next\_page}, :frequency =\> 5)%\>

but then I have to update the call every time I make the remote  
call…

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<div class="post-metadata">

**Author:** ![heimdull](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f4b2a3/32.png) [@heimdull](https://www.ruby-forum.com/u/heimdull)\
**Post date:** [May 30, 2008, 9:03pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101/4 "2008-05-30T21:03:50Z")

</div>

Thanks!! :with was the missing link for me…

Everything is now working just like I wanted…

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<div class="post-metadata">

**Author:** ![heimdull](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/f4b2a3/32.png) [@heimdull](https://www.ruby-forum.com/u/heimdull)\
**Post date:** [May 30, 2008, 7:46pm UTC](https://www.ruby-forum.com/t/auto-rotating-between-will-paginated-objects/139101/5 "2008-05-30T19:46:10Z")

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good point 😉

you’ll have to configure the thing then

one of those should do:

:submit: Specifies the DOM element ID that‘s used as the parent of the  
form elements. By default this is the current form, but it could just as  
well be the ID of a table row or any other DOM element.

:with: A JavaScript expression specifying the parameters for the  
XMLHttpRequest. Any expressions should return a valid URL query string.

:with =\> “‘name=’ + $(‘name’).value”

so you could add a hidden field or whatever that your ajax call updates  
with the next\_page number.

IF your response is fast enough…

otherwise you could use

:condition: Perform remote request conditionally by this expression.  
Use this to describe browser-side conditions when request should not be  
initiated.

to block the call temporarily, until your response unlocks it again…