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# frozen_string_literal: true
class CleanupRelayablesWithoutSignature < ActiveRecord::Migration[5.1]
class Comment < ApplicationRecord
belongs_to :commentable, polymorphic: true
before_destroy do
Like.where(target_type: "Comment", target_id: id).destroy_all
ActsAsTaggableOn::Tagging.where(taggable_type: "Comment", taggable_id: id).destroy_all
end
after_destroy do
commentable.update_comments_counter
end
end
class Like < ApplicationRecord
belongs_to :target, polymorphic: true
has_one :signature, class_name: "LikeSignature", dependent: :delete
after_destroy do
target.update_likes_counter
end
end
class PollParticipation < ApplicationRecord
belongs_to :poll_answer, counter_cache: :vote_count
end
def up
cleanup_comments
cleanup_likes
cleanup_poll_participations
end
def cleanup_comments
Comment.joins("INNER JOIN posts as post ON post.id = comments.commentable_id AND " \
"comments.commentable_type = 'Post'")
.joins("INNER JOIN people as comment_author ON comment_author.id = comments.author_id")
.joins("INNER JOIN people as post_author ON post_author.id = post.author_id")
.where("comment_author.owner_id IS NULL AND post_author.owner_id IS NOT NULL " \
"AND NOT EXISTS(" \
"SELECT NULL FROM comment_signatures WHERE comment_signatures.comment_id = comments.id" \
")")
.destroy_all
end
def cleanup_likes
Like.joins("INNER JOIN posts as post ON post.id = likes.target_id AND likes.target_type = 'Post'")
.joins("INNER JOIN people as like_author ON like_author.id = likes.author_id")
.joins("INNER JOIN people as post_author ON post_author.id = post.author_id")
.where("like_author.owner_id IS NULL AND post_author.owner_id IS NOT NULL " \
"AND NOT EXISTS(" \
"SELECT NULL FROM like_signatures WHERE like_signatures.like_id = likes.id" \
")")
.destroy_all
Like.joins("INNER JOIN comments as comment ON comment.id = likes.target_id AND likes.target_type = 'Comment'")
.joins("INNER JOIN posts as post ON post.id = comment.commentable_id AND comment.commentable_type = 'Post'")
.joins("INNER JOIN people as like_author ON like_author.id = likes.author_id")
.joins("INNER JOIN people as post_author ON post_author.id = post.author_id")
.where("like_author.owner_id IS NULL AND post_author.owner_id IS NOT NULL " \
"AND NOT EXISTS(" \
"SELECT NULL FROM like_signatures WHERE like_signatures.like_id = likes.id" \
")")
.destroy_all
end
def cleanup_poll_participations
PollParticipation.joins("INNER JOIN polls as poll ON poll.id = poll_participations.poll_id")
.joins("INNER JOIN posts as post ON post.id = poll.status_message_id")
.joins("INNER JOIN people as pp_author ON pp_author.id = poll_participations.author_id")
.joins("INNER JOIN people as post_author ON post_author.id = post.author_id")
.where("pp_author.owner_id IS NULL AND post_author.owner_id IS NOT NULL " \
"AND NOT EXISTS(" \
"SELECT NULL FROM poll_participation_signatures " \
"WHERE poll_participation_signatures.poll_participation_id = poll_participations.id" \
")")
.destroy_all
end
end
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