Issue with mering ActiveRecord query results

class ABC
def self.
    active
self.live.where('starts_at <= ?', Time.now).where('(ends_at > ? || ends_at IS NULL)', Time.now)

  end

  def self.recently_completed
    `
self.completed.where("completed_at > ?", 2.days.ago)`

 end

The issue is when I do:

(ABC.active + ABC.recently_completed).columns_hash

This gives error, undefined method `columns_hash’ for #<Array:…

When I do:

(ABC.active).merge(ABC.recently_completed)

The query being run is actually combination of the two. They are not run independently as I expected.

I need a way to write the code as to run the queries separately and then merge the results but not as an array.

If you were going to use Hash#merge to remove duplicates between the two
result sets, you might as well just use Array#uniq on the Array.

@Joel:

It isn’t Hash#merge, but ActiveRecord::SpawnMethods#merge