ruby on rails - What is the easiest way to duplicate an activerecord record? -

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i want make copy of activerecord record, changing single field in process (in addition id). simplest way accomplish this?

i realize create new record, , iterate on each of fields copying data field-by-field - figured there must easier way this...

such as:

 @newrecord=record.copy(:id)  *perhaps?*

to copy, use clone (or dup rails 3.1) method:

# rails < 3.1 new_record = old_record.clone  #rails >= 3.1 new_record = old_record.dup

then can change whichever fields want.

activerecord overrides built-in object#clone give new (not saved db) record unassigned id.
note not copy associations, you'll have manually if need to.

rails 3.1 clone shallow copy, use dup instead...


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