127 lines
2.9 KiB
Ruby
127 lines
2.9 KiB
Ruby
class PostMover
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attr_reader :original_topic, :destination_topic, :user, :post_ids
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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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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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@move_type = PostMover.move_types[:existing_topic]
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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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def to_new_topic(title)
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@move_type = PostMover.move_types[:new_topic]
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Topic.transaction do
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move_posts_to Topic.create!(
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user: user,
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title: title,
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category: original_topic.category
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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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move_each_post
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notify_users_that_posts_have_moved
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update_statistics
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update_user_actions
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destination_topic
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end
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def move_each_post
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with_max_post_number do |max_post_number|
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posts.each_with_index do |post, offset|
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post.is_first_post? ? copy(post) : move(post, offset + max_post_number)
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end
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end
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end
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def copy(post)
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PostCreator.create(
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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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acting_user: user
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)
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end
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def move(post, post_number)
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@first_post_number_moved ||= post.post_number
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Post.where(id: post.id, topic_id: original_topic.id).update_all(
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[
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['post_number = :post_number',
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'topic_id = :topic_id',
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'sort_order = :post_number'
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].join(', '),
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post_number: post_number,
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topic_id: destination_topic.id
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]
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)
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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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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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end
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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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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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original_topic.add_moderator_post(
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user,
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I18n.t("move_posts.#{PostMover.move_types[@move_type].to_s}_moderator_post",
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count: post_ids.count,
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topic_link: "[#{destination_topic.title}](#{destination_topic.url})"),
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post_number: @first_post_number_moved
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)
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end
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def with_max_post_number
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yield destination_topic.max_post_number + 1
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end
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def posts
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@posts ||= begin
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Post.where(id: post_ids).order(:created_at).tap do |posts|
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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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end
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