Module: Mongoid::Letsrate

Extended by:
ActiveSupport::Concern
Defined in:
lib/mongoid/letsrate/model.rb,
lib/mongoid/letsrate/version.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

VERSION = 
'1.0.14'

Instance Method Summary collapse

Instance Method Details

#can_rate?(user) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongoid/letsrate/model.rb', line 44

def can_rate?(user)
  user.ratings_given.where(rateable_id: id, rateable_type: self.class.name).size.zero?
end

#rate(stars, user) ⇒ Object 



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# File 'lib/mongoid/letsrate/model.rb', line 8

def rate(stars, user)
  if can_rate? user
    rates.create! do |r|
      r.stars = stars
      r.rater = user
    end
    update_rate_average(stars)
  else
    raise 'User has already rated.'
  end
end

#rating ⇒ Object

The average rating



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# File 'lib/mongoid/letsrate/model.rb', line 21

def rating
  average ? average.avg : 0
end

#update_rate_average(stars) ⇒ Object 



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# File 'lib/mongoid/letsrate/model.rb', line 25

def update_rate_average(stars)
  if average.nil?
    RatingCache.create! do |avg|
      puts "About to create average"
      avg.cacheable_id = self.id
      avg.cacheable_type = self.class.name
      avg.avg = stars
      avg.qty = 1
    end
  else
    puts "Found average"
    a = average
    all_stars = rates.map &:stars
    a.avg = all_stars.inject { |sum, value| sum + value } / all_stars.size
    a.qty = rates.count
    a.save!(validate: false)
  end
end