How do I delete a range (hash) in Rails Console

Question

Rails Console

q=Article.last(3)
q.delete

wrong number of arguments (0 for 1) 

q.destroy

NoMethodError: undefined method `destroy' for #<Array:0x0000000901b6d0>

Answer 1

Try

Article.destroy_all(id: q.map(&:id))

OR

Article.destroy q.map{ |a| a.id }

Answer 2

You can use destroy_all

q = Article.order(id: :desc).limit(3)
q.destroy_all

or With your approach

q = Article.last(3) 
q.map(&:destroy)
# or
Article.where(id: q.map(&:id)).destroy_all

You can also chain destroy_all to where

Article.where(some_condition).destroy_all