Postive and Negative votes separately ? about activerecord-reputation-system HOT 4 CLOSED

This depends on what you want to do with those positive and negative votes. Also are users allowed to do both positive and negative votes?

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This can be done by adding a has_many relationship to you model which points at RSEvaluations. Have you watched/read RyanB's Rails/Ascii-Cast for this gem? If not, it is worthwhile. In any event, if you follow what Ryan suggests, after you've added the :votes reputation to your model, you add a has_many as well.

# app/model/something.rb
has_many :evaluations, :class_name: "RSEvaluation", as: :target

note, I used as: :target instead of as: :source as Ryan did. He was tracking something different. In the case where you are trying to count up the positive and negative votes, the model being voted on is the target.

Then you can add methods to your model to help. For example:

# app/model/something.rb
def count_positive
  evaluations.where( target_type: self.class, target_id: self.id, value: 1.0 ).count
end

Now, when you vote for that something, you can then ask for the count as well

> Something.first.add_or_update_evaluation( :votes, 1, User.first )
> => true
> Something.first.count_positive
> => 1

(note: my above examples have hard-coded objects and made up model names, but hopefully you follow what I am trying to describe? Something is the model you would vote on and User is the model doing the voting. )

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Thank you for this useful comment.
Why don't just write a method like :

              def count_positive
                 self.evaluations.where{(value == "1") }.length
              end

It works well...

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Please use Stackoverflow for questions like this next time.

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