ruby on rails - Send back data from activerecord model on create -

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i wondering if there way can send data model on create. in app have model that on create generates keys , hashes them in database. unhashed form of key , send user , allow them view once , have them save elsewhere. tried setting flash message inside model isn't working.

you can add non-persisted fields models using attr_accessor regular ruby class. activerecord won't pick on these. can add field , put there, , present life of object (or until cleared). don't reload.


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