133 lines
4.3 KiB
Ruby
133 lines
4.3 KiB
Ruby
#
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# How a post is deleted is affected by who is performing the action.
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# this class contains the logic to delete it.
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#
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class PostDestroyer
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def self.destroy_stubs
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# exclude deleted topics and posts that are actively flagged
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Post.where(deleted_at: nil, user_deleted: true)
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.where("NOT EXISTS (
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SELECT 1 FROM topics t
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WHERE t.deleted_at IS NOT NULL AND
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t.id = posts.topic_id
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)")
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.where("updated_at < ? AND post_number > 1", SiteSetting.delete_removed_posts_after.hours.ago)
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.where("NOT EXISTS (
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SELECT 1
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FROM post_actions pa
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WHERE pa.post_id = posts.id AND
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pa.deleted_at IS NULL AND
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pa.post_action_type_id IN (?)
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)", PostActionType.notify_flag_type_ids)
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.each do |post|
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PostDestroyer.new(Discourse.system_user, post).destroy
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end
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end
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def initialize(user, post)
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@user, @post = user, post
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end
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def destroy
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if @user.staff?
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staff_destroyed
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elsif @user.id == @post.user_id
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user_destroyed
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end
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end
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def recover
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if @user.staff? && @post.deleted_at
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staff_recovered
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elsif @user.staff? || @user.id == @post.user_id
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user_recovered
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end
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@post.topic.update_statistics
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end
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def staff_recovered
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@post.recover!
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end
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# When a post is properly deleted. Well, it's still soft deleted, but it will no longer
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# show up in the topic
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def staff_destroyed
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Post.transaction do
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if @post.topic
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# Update the last post id to the previous post if it exists
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last_post = Post.where("topic_id = ? and id <> ?", @post.topic_id, @post.id).order('created_at desc').limit(1).first
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if last_post.present?
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@post.topic.update_attributes(last_posted_at: last_post.created_at,
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last_post_user_id: last_post.user_id,
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highest_post_number: last_post.post_number)
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# If the poster doesn't have any other posts in the topic, clear their posted flag
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unless Post.exists?(["topic_id = ? and user_id = ? and id <> ?", @post.topic_id, @post.user_id, @post.id])
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TopicUser.where(topic_id: @post.topic_id, user_id: @post.user_id).update_all 'posted = false'
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end
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end
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# Feature users in the topic
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Jobs.enqueue(:feature_topic_users, topic_id: @post.topic_id, except_post_id: @post.id)
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end
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@post.post_actions.each do |pa|
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pa.trash!(@user)
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end
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f = PostActionType.types.map{|k,v| ["#{k}_count", 0]}
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Post.with_deleted.where(id: @post.id).update_all(Hash[*f.flatten])
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@post.trash!(@user)
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Topic.reset_highest(@post.topic_id) if @post.topic
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@post.update_flagged_posts_count
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# Remove any reply records that point to deleted posts
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post_ids = PostReply.where(reply_id: @post.id).pluck(:post_id)
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PostReply.delete_all reply_id: @post.id
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if post_ids.present?
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Post.where(id: post_ids).each { |p| p.update_column :reply_count, p.replies.count }
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end
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# Remove any notifications that point to this deleted post
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Notification.delete_all topic_id: @post.topic_id, post_number: @post.post_number
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@post.topic.trash!(@user) if @post.topic and @post.post_number == 1
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if @post.topic && @post.topic.category && @post.id == @post.topic.category.latest_post_id
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@post.topic.category.update_latest
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end
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if @post.post_number == 1 && @post.topic && @post.topic.category && @post.topic_id == @post.topic.category.latest_topic_id
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@post.topic.category.update_latest
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end
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end
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end
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# When a user 'deletes' their own post. We just change the text.
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def user_destroyed
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Post.transaction do
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@post.revise(@user, I18n.t('js.post.deleted_by_author', count: SiteSetting.delete_removed_posts_after), force_new_version: true)
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@post.update_column(:user_deleted, true)
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@post.update_flagged_posts_count
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@post.topic_links.each(&:destroy)
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end
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end
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def user_recovered
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Post.transaction do
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@post.update_column(:user_deleted, false)
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@post.skip_unique_check = true
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@post.revise(@user, @post.revisions.last.modifications["raw"][0], force_new_version: true)
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@post.update_flagged_posts_count
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end
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end
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end
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