How to create a collection of collections?

Hi

I'm using awesome nested set to return ancestors and self_and_siblings from a tree database structure. I would like to create an object of those both, pass to a partial which iterates over the ancestors (2 * UL's) and passes to another partial which iterates over the siblings (x * LI's).

Basically how do i do this:

@collection.ancestors = Nutrient.find(params[:id]).ancestors
@collection.siblings = Nutrient.find(params[:id]).self_and_siblings

I have tried that and:

@nutrients = {:children => @children, :parents => @parents }

I realise this is probably really simple but I have wasted a good couple of hours on this already and would really appreciate some help. :S

So, I'm pretty confused about what you are asking. What are you exactly having trouble with? What is @collection?

You could just use locals.

In the controller:

Code:

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@nutrient = Nutrient.find(params[:id])

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In the view:

Code:

---

render :partial => "ancestors", :collection => @nutrient.ancestors

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Then in that partial:

Code:

---

render :partial => "siblings", :collection => @nutrient.self_and_siblings

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