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path: root/app/models/poll_vote.rb
blob: ad24eb6914a0e0ad2e54b3b3f7539ae79430bb01 (plain) (tree)
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# frozen_string_literal: true
# == Schema Information
#
# Table name: poll_votes
#
#  id         :bigint(8)        not null, primary key
#  account_id :bigint(8)
#  poll_id    :bigint(8)
#  choice     :integer          default(0), not null
#  created_at :datetime         not null
#  updated_at :datetime         not null
#  uri        :string
#

class PollVote < ApplicationRecord
  belongs_to :account
  belongs_to :poll, inverse_of: :votes

  validates :choice, presence: true
  validates_with VoteValidator

  after_create_commit :increment_counter_cache

  delegate :local?, to: :account

  def object_type
    :vote
  end

  private

  def increment_counter_cache
    poll.cached_tallies[choice] = (poll.cached_tallies[choice] || 0) + 1
    poll.save
  rescue ActiveRecord::StaleObjectError
    poll.reload
    retry
  end
end