Script.aculo.us drag and drop problem

rubyonrails-talk
1

Hello,

I am using Script.aculo.us helpers "drop_receiving_element" and I get a "calling against a nil object" and a NoMethodError exception. I used the same code un Rails 1.2.6 and it works:

the drag code is:

Code : - fold - unfold

   1. <div id="dropHelperDIV" class="pink box">drop here.</div>    2. <%= drop_receiving_element :dropHelperDIV, :hoverclass => 'hover' %>

and it returns this error

NoMethodError in Chapter4#draggables

Showing chapter4/draggables.html.erb where line #21 raised:

You have a nil object when you didn't expect it! You might have expected an instance of ActiveRecord::Base. The error occurred while evaluating nil.

Extracted source (around line #21):

Code : - fold - unfold

   1. </div>    2. <div id="dropContainment" class="pink box">drop here.</div>    3. <%= drop_receiving_element :dropContainment, :hoverclass => "hover",    4. :containment => "'one'" %>

Can anyone help me solve this error?

Thanks,