6b91e55283
Make it so that when a user removes their own vote, the vote is soft deleted (the is_deleted flag is set) instead of hard deleted. Changes: * Add is_deleted flag to comment votes. * Relax uniqueness constraint so you can have multiple deleted votes on the same comment. You can still only have one active vote on the comment. * Add `soft_delete` method to Deletable concern.
73 lines
1.8 KiB
Ruby
73 lines
1.8 KiB
Ruby
class CommentVote < ApplicationRecord
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attr_accessor :updater
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belongs_to :comment
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belongs_to :user
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validate :validate_vote_is_unique, if: :is_deleted_changed?
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validates :score, inclusion: { in: [-1, 1], message: "must be 1 or -1" }
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before_create :update_score_on_create
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before_save :update_score_on_delete_or_undelete, if: -> { !new_record? && is_deleted_changed? }
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deletable
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def self.visible(user)
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if user.is_moderator?
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all
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elsif user.is_anonymous?
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none
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else
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where(user: user)
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end
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end
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def self.search(params)
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q = search_attributes(params, :id, :created_at, :updated_at, :score, :is_deleted, :comment, :user)
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q.apply_default_order(params)
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end
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def is_positive?
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score == 1
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end
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def is_negative?
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score == -1
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end
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# allow duplicate deleted votes but not duplicate active votes
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def validate_vote_is_unique
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if !is_deleted? && CommentVote.active.where.not(id: id).exists?(comment_id: comment_id, user_id: user_id)
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errors.add(:user, "have already voted for this comment")
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end
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end
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def update_score_on_create
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comment.with_lock do
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comment.update_columns(score: comment.score + score)
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end
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end
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def update_score_on_delete_or_undelete
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comment.with_lock do
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if is_deleted_changed?(from: false, to: true)
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comment.update_columns(score: comment.score - score)
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if updater != user
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ModAction.log("#{updater.name} deleted comment vote ##{id} on comment ##{comment_id}", :comment_vote_delete, updater)
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end
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else
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comment.update_columns(score: comment.score + score)
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if updater != user
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ModAction.log("#{updater.name} undeleted comment vote ##{id} on comment ##{comment_id}", :comment_vote_undelete, updater)
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end
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end
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end
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end
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def self.available_includes
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[:comment, :user]
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end
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end
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