Question

If I take a number Object like so :

@objects = Object.all[1..5]

I no longer can perform a where method on @object.

Is there anyway, I can still perform..

@objects.where(:attribute => identity)

So long as I know all the objects are of the same class?

Answer 1

Once you triggered all an Array instance is returned, so answer to your question is no. There are some gotchas, though:

1. Keep a scope variable. I.e. if you need to use a scoped object in multiple places, do the following:

   objects = Object.scoped
   
   all_objects     = objects.all
   special_objects = objects.where(attribute: something_special).all
   

2. Continue playing with scoping:

   objects = Object.skip(1).take(5)
   
   all_objects     = objects.all
   special_objects = objects.where(attribute: something_special).all
   

3. Hacky and inefficient way:

   all_objects     = Object.all[1..5]
   special_objects = object.select { |object| object.attribute == something_special }