Contents

module ActsAsVotable
  module Voter

    def self.included(base)

      # allow user to define these
      aliases = {
        :vote_up_for => [:likes, :upvotes, :up_votes],
        :vote_down_for => [:dislikes, :downvotes, :down_votes]
      }

      base.class_eval do

        belongs_to :voter, :polymorphic => true

        aliases.each do |method, links|
          links.each do |new_method|
            alias_method(new_method, method)
          end
        end

      end

    end

    def default_conditions
      {
        :voter_id => self.id,
        :voter_type => self.class.name
      }
    end

    # voting
    def vote args
      args[:votable].vote args.merge({:voter => self})
    end

    def vote_up_for model
      vote :votable => model, :vote => true
    end

    def vote_down_for model
      vote :votable => model, :vote => false
    end

    # results
    def voted_on? votable
      votes = find_votes(:votable_id => votable.id, :votable_type => votable.class.name)
      votes.size > 0
    end
    alias :voted_for? :voted_on?

    def voted_as_when_voting_on votable
      votes = find_votes(:votable_id => votable.id, :votable_type => votable.class.name)
      return nil if votes.size == 0
      return votes.first.vote_flag
    end
    alias :voted_as_when_voted_for :voted_as_when_voting_on

    def find_votes extra_conditions = {}
      ActsAsVotable::Vote.find(:all, :conditions => default_conditions.merge(extra_conditions))
    end
    alias :votes :find_votes

    def find_up_votes
      find_votes :vote_flag => true
    end

    def find_down_votes
      find_votes :vote_flag => false
    end

    def find_votes_for_class klass, extra_conditions = {}
      find_votes extra_conditions.merge({:votable_type => klass.name})
    end

    def find_up_votes_for_class klass
      find_votes_for_class klass, :vote_flag => true
    end

    def find_down_votes_for_class klass
      find_votes_for_class klass, :vote_flag => false
    end

 
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
acts_as_votable-0.1.3	lib/acts_as_votable/voter.rb