32 lines
1,012 B
Ruby
32 lines
1,012 B
Ruby
class PollVote < ApplicationRecord
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belongs_to :user
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belongs_to :poll_option
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belongs_to :poll
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counter_culture :poll_option
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counter_culture :poll
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validates :poll_id, presence: true, uniqueness: { scope: :user_id } # In the future we'll remove this constraint if/when we allow multi-answer polls
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validates :poll_option_id, presence: true, uniqueness: { scope: :user_id }
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validate :one_vote_per_poll_per_user
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after_save :touch_poll_votes_count
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after_destroy :touch_poll_votes_count
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delegate :poll, to: :poll_option, allow_nil: true
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private
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def one_vote_per_poll_per_user
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return false unless poll
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has_votes = (
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poll.poll_votes.where(user_id: user_id).any? || poll.poll_skips.where(user_id: user_id).any?)
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errors.add(:base, "cannot vote more than once in one poll") if has_votes
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end
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def touch_poll_votes_count
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poll.update_column(:poll_votes_count, poll.poll_votes.size)
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poll_option.update_column(:poll_votes_count, poll_option.poll_votes.size)
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end
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end
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