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

Wrapping save in transaction will not be enough: if a validation is not passed, there will be no exception raised and no rollback triggered.

I can suggest this:

B.transaction do
  a.each do |o|
    raise ActiveRecord::Rollback unless o.save
  end
end

Just doing B.transaction do a.each(&:save!) end is not an option either, because the transaction block will not rescue any exception other than ActiveRecord::Rollback, and the application would crash on failed validation.

I do not know how to check afterwards if the records have been saved.

---

Update. As someone has downrated my answer, i assume that the person was looking for a cut-and-paste solution :), so here is some (ugly :)) way to process fail/success value:

save_failed = nil
B.transaction do
  a.each do |o|
    unless o.save
      save_failed = true
      raise ActiveRecord::Rollback
    end
  end
end
if save_failed
  # ...
else
  # ...
end