2013-05-25 20:40:33 -04:00
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class PostMover
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attr_reader :original_topic, :destination_topic, :user, :post_ids
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2013-07-02 15:47:15 -04:00
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def self.move_types
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@move_types ||= Enum.new(:new_topic, :existing_topic)
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end
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2013-05-25 20:40:33 -04:00
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def initialize(original_topic, user, post_ids)
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@original_topic = original_topic
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@user = user
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@post_ids = post_ids
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end
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def to_topic(id)
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2013-07-02 15:47:15 -04:00
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@move_type = PostMover.move_types[:existing_topic]
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2013-05-25 20:40:33 -04:00
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Topic.transaction do
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move_posts_to Topic.find_by_id(id)
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end
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end
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2013-10-29 15:30:06 -04:00
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def to_new_topic(title, category_id=nil)
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2013-07-02 15:47:15 -04:00
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@move_type = PostMover.move_types[:new_topic]
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2015-11-06 23:17:47 -05:00
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post = Post.find_by(id: post_ids.first)
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raise Discourse::InvalidParameters unless post
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2013-05-25 20:40:33 -04:00
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Topic.transaction do
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move_posts_to Topic.create!(
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2015-11-06 23:17:47 -05:00
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user: post.user,
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2013-05-25 20:40:33 -04:00
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title: title,
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2015-11-06 23:17:47 -05:00
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category_id: category_id,
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created_at: post.created_at
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2013-05-25 20:40:33 -04:00
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)
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end
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end
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private
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def move_posts_to(topic)
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Guardian.new(user).ensure_can_see! topic
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@destination_topic = topic
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2015-12-29 16:01:49 -05:00
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moving_all_posts = (@original_topic.posts.pluck(:id).sort == @post_ids.sort)
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2013-05-25 20:40:33 -04:00
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move_each_post
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notify_users_that_posts_have_moved
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update_statistics
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2013-07-17 02:40:15 -04:00
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update_user_actions
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2014-10-16 15:38:26 -04:00
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set_last_post_user_id(destination_topic)
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2013-07-17 02:40:15 -04:00
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2015-12-29 16:01:49 -05:00
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if moving_all_posts
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@original_topic.update_status('closed', true, @user)
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end
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2015-04-06 03:27:05 -04:00
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destination_topic.reload
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2013-07-17 02:40:15 -04:00
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destination_topic
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2013-05-25 20:40:33 -04:00
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end
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def move_each_post
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2014-08-20 14:14:56 -04:00
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max_post_number = destination_topic.max_post_number + 1
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@move_map = {}
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@reply_count = {}
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posts.each_with_index do |post, offset|
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unless post.is_first_post?
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@move_map[post.post_number] = offset + max_post_number
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else
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@move_map[post.post_number] = 1
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2013-05-25 20:40:33 -04:00
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end
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2014-08-20 14:14:56 -04:00
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if post.reply_to_post_number.present?
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@reply_count[post.reply_to_post_number] = (@reply_count[post.reply_to_post_number] || 0) + 1
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end
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end
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posts.each do |post|
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post.is_first_post? ? create_first_post(post) : move(post)
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2013-05-25 20:40:33 -04:00
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end
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2016-07-13 11:34:21 -04:00
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2017-04-24 17:14:01 -04:00
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PostReply.where("reply_id IN (:post_ids) OR post_id IN (:post_ids)", post_ids: post_ids).each do |post_reply|
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2016-08-04 11:49:44 -04:00
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if post_reply.post && post_reply.reply && post_reply.reply.topic_id != post_reply.post.topic_id
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2016-07-13 11:34:21 -04:00
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PostReply.delete_all(reply_id: post_reply.reply.id, post_id: post_reply.post.id)
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end
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end
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2013-05-25 20:40:33 -04:00
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end
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2014-08-20 14:14:56 -04:00
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def create_first_post(post)
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2017-02-10 09:35:04 -05:00
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new_post = PostCreator.create(
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2013-05-25 20:40:33 -04:00
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post.user,
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raw: post.raw,
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topic_id: destination_topic.id,
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2016-07-05 16:48:14 -04:00
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acting_user: user,
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skip_validations: true
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2013-05-25 20:40:33 -04:00
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)
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2017-02-10 09:35:04 -05:00
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PostAction.copy(post, new_post)
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new_post.update_column(:reply_count, @reply_count[1] || 0)
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2017-06-07 06:04:48 -04:00
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new_post.custom_fields = post.custom_fields
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new_post.save_custom_fields
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new_post
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2013-05-25 20:40:33 -04:00
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end
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2014-08-20 14:14:56 -04:00
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def move(post)
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2013-05-25 20:40:33 -04:00
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@first_post_number_moved ||= post.post_number
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2017-06-01 18:00:04 -04:00
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update = {
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reply_count: @reply_count[post.post_number] || 0,
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post_number: @move_map[post.post_number],
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reply_to_post_number: @move_map[post.reply_to_post_number],
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topic_id: destination_topic.id,
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sort_order: @move_map[post.post_number]
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}
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unless @move_map[post.reply_to_post_number]
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update[:reply_to_user_id] = nil
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end
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Post.where(id: post.id, topic_id: original_topic.id).update_all(update)
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2013-07-02 16:42:25 -04:00
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# Move any links from the post to the new topic
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post.topic_links.update_all(topic_id: destination_topic.id)
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2013-05-25 20:40:33 -04:00
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end
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def update_statistics
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destination_topic.update_statistics
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original_topic.update_statistics
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2016-03-16 03:15:54 -04:00
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TopicUser.update_post_action_cache(topic_id: original_topic.id, post_action_type: :bookmark)
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TopicUser.update_post_action_cache(topic_id: destination_topic.id, post_action_type: :bookmark)
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2013-05-25 20:40:33 -04:00
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end
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2013-07-17 02:40:15 -04:00
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def update_user_actions
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UserAction.synchronize_target_topic_ids(posts.map(&:id))
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end
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2013-05-25 20:40:33 -04:00
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def notify_users_that_posts_have_moved
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enqueue_notification_job
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create_moderator_post_in_original_topic
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end
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def enqueue_notification_job
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Jobs.enqueue(
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:notify_moved_posts,
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post_ids: post_ids,
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moved_by_id: user.id
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)
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end
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def create_moderator_post_in_original_topic
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2015-07-31 16:30:18 -04:00
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move_type_str = PostMover.move_types[@move_type].to_s
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2013-05-25 20:40:33 -04:00
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original_topic.add_moderator_post(
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user,
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2015-07-31 16:30:18 -04:00
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I18n.t("move_posts.#{move_type_str}_moderator_post",
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2013-07-02 15:47:15 -04:00
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count: post_ids.count,
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2015-07-31 16:30:18 -04:00
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topic_link: "[#{destination_topic.title}](#{destination_topic.relative_url})"),
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post_type: Post.types[:small_action],
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action_code: "split_topic",
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2013-05-25 20:40:33 -04:00
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post_number: @first_post_number_moved
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)
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end
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def posts
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@posts ||= begin
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2017-03-06 02:04:10 -05:00
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Post.where(topic: @original_topic, id: post_ids).order(:created_at).tap do |posts|
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2013-05-25 20:40:33 -04:00
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raise Discourse::InvalidParameters.new(:post_ids) if posts.empty?
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end
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end
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end
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2014-10-16 15:38:26 -04:00
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def set_last_post_user_id(topic)
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user_id = topic.posts.last.user_id rescue nil
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return if user_id.nil?
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topic.update_attribute :last_post_user_id, user_id
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end
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2013-05-25 20:40:33 -04:00
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end
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