PostgreSQL check whether timestamp field is empty

Question

I followed these instructions to check whether a user has been soft-deleted or not when logging in. In the example below I can check for a boolean value:

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Answer 1

You can't using this solution, without modifying devise of course. Devise will send your conditions directly to the database, so no way of calling a method or using a library like squeel (that will allow something like where{created_at == nil}.

You could use the solution provided in How to "soft delete" user with Devise, but the error message will be: "You have to confirm your account before continuing."

Add this to your resource model:

  def inactive_message
    !!deleted_at ? :deleted : super
  end

And add a message to your locales:

en:
  devise:
    failure:
      deleted: "Your account was deleted."

I hope it helps!