2a26fa3538
* Refactoring poll/vote/skip logic Favor asking the poll if the user has already voted instead of relying on the poll vote or skip to know about the implementation details (e.g. should a poll vote know that there's a related model call poll skipped? likely not) This refactor also tidies up the specs, for which there's quite a bit of chatter. Found via the `flay` gem. * Adding method documentation Also need to bump gitpod's build as it halted for the prior commit.
40 lines
1.3 KiB
Ruby
40 lines
1.3 KiB
Ruby
# @note When we destroy the related user, it's using dependent:
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# :delete for the relationship. That means no before/after
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# destroy callbacks will be called on this object.
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#
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# @note When we destroy the related poll, it's using dependent:
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# :delete for the relationship. That means no before/after
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# destroy callbacks will be called on this object.
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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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# In the future we'll remove this constraint if/when we allow multi-answer polls
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validates :poll_id, presence: true, uniqueness: { scope: :user_id }
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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_destroy :touch_poll_votes_count
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after_save :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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return false unless poll.vote_previously_recorded_for?(user_id: user_id)
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errors.add(:base, "cannot vote more than once in one poll")
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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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