I'm creating a rails blog app. No visitor can sign up. The app will allow any visitor to post comment on a post. However, this comment will be persisted if and only the visitors clicks on a unique confirmation email that said visitor receives when subimming the comment for review. How could I do this? Is there a gem for that?
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You could do it many ways, but providing a unique token would be a standard way to do it.
So the
Commentmodel would have a column calledconfirmation_tokenwhich you could set to be random when the comment is created and a column calledactivewhich is false by default. Then you send a confirmation email with a link that has that token as a param:When that page is visited, you pick up the
confirmation_tokenin your controller and set theactivecolumn to true if the token in the url matches the token in the database.This is how many different types of confirmation are done, including most plain vanilla registrations (e.g. through Devise).