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117 lines
3.8 KiB
Ruby
117 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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module DiscoursePoll
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class PollsUpdater
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POLL_ATTRIBUTES ||= %w{close_at max min results status step type visibility}
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def self.update(post, polls)
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::Poll.transaction do
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has_changed = false
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edit_window = SiteSetting.poll_edit_window_mins
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old_poll_names = ::Poll.where(post: post).pluck(:name)
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new_poll_names = polls.keys
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deleted_poll_names = old_poll_names - new_poll_names
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created_poll_names = new_poll_names - old_poll_names
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# delete polls
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if deleted_poll_names.present?
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::Poll.where(post: post, name: deleted_poll_names).destroy_all
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end
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# create polls
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if created_poll_names.present?
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has_changed = true
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polls.slice(*created_poll_names).values.each do |poll|
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Poll.create!(post.id, poll)
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end
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end
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# update polls
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::Poll.includes(:poll_votes, :poll_options).where(post: post).find_each do |old_poll|
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new_poll = polls[old_poll.name]
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new_poll_options = new_poll["options"]
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attributes = new_poll.slice(*POLL_ATTRIBUTES)
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attributes["visibility"] = new_poll["public"] == "true" ? "everyone" : "secret"
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attributes["close_at"] = Time.zone.parse(new_poll["close"]) rescue nil
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attributes["status"] = old_poll["status"]
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poll = ::Poll.new(attributes)
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if is_different?(old_poll, poll, new_poll_options)
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# only prevent changes when there's at least 1 vote
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if old_poll.poll_votes.size > 0
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# can't change after edit window (when enabled)
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if edit_window > 0 && old_poll.created_at < edit_window.minutes.ago
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error = poll.name == DiscoursePoll::DEFAULT_POLL_NAME ?
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I18n.t("poll.edit_window_expired.cannot_edit_default_poll_with_votes", minutes: edit_window) :
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I18n.t("poll.edit_window_expired.cannot_edit_named_poll_with_votes", minutes: edit_window, name: poll.name)
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post.errors.add(:base, error)
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return
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end
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end
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# update poll
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POLL_ATTRIBUTES.each do |attr|
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old_poll.send("#{attr}=", poll.send(attr))
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end
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old_poll.save!
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# keep track of anonymous votes
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anonymous_votes = old_poll.poll_options.map { |pv| [pv.digest, pv.anonymous_votes] }.to_h
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# destroy existing options & votes
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::PollOption.where(poll: old_poll).destroy_all
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# create new options
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new_poll_options.each do |option|
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::PollOption.create!(
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poll: old_poll,
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digest: option["id"],
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html: option["html"].strip,
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anonymous_votes: anonymous_votes[option["id"]],
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)
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end
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has_changed = true
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end
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end
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if ::Poll.exists?(post: post)
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post.custom_fields[HAS_POLLS] = true
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else
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post.custom_fields.delete(HAS_POLLS)
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end
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post.save_custom_fields(true)
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if has_changed
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polls = ::Poll.includes(poll_options: :poll_votes).where(post: post)
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polls = ActiveModel::ArraySerializer.new(polls, each_serializer: PollSerializer, root: false).as_json
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post.publish_message!("/polls/#{post.topic_id}", post_id: post.id, polls: polls)
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end
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end
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end
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private
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def self.is_different?(old_poll, new_poll, new_options)
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# an attribute was changed?
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POLL_ATTRIBUTES.each do |attr|
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return true if old_poll.send(attr) != new_poll.send(attr)
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end
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# an option was changed?
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return true if old_poll.poll_options.map { |o| o.digest }.sort != new_options.map { |o| o["id"] }.sort
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# it's the same!
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false
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end
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end
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end
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