save an active records array

Question

I have an array like this

a = []

a << B.new(:name => \"c\")
a << B.new(:name => \"s\")
a << B.new(:name => \"e\")
a << B.new(:n         


        

Answer 1

So I think we need a middle ground to Alexey's raising exceptions and aborting the transaction and Jordan's one-liner solution. May I propose:

B.transaction do
  success = a.map(&:save)
  unless success.all?
    errored = a.select{|b| !b.errors.blank?}
    # do something with the errored values
    raise ActiveRecord::Rollback
  end
end

This will give you a bit of both worlds: a transaction with rollback, knowledge of which records failed and even gives you access to the validation errors therein.