discourse/app/serializers/admin_user_action_serializer.rb

# frozen_string_literal: true

require_relative "post_item_excerpt"

class AdminUserActionSerializer < ApplicationSerializer
  include PostItemExcerpt

  attributes(
    :id,
    :created_at,
    :post_number,
    :post_id,
    :name,
    :username,
    :avatar_template,
    :topic_id,
    :slug,
    :title,
    :category_id,
    :truncated,
    :hidden,
    :moderator_action,
    :deleted,
    :deleted_at,
    :deleted_by,
    :reply_to_post_number,
    :action_type,
  )

  def post_id
    object.id
  end

  def deleted
    deleted_at.present?
  end

  def name
    object.user.name
  end

  def include_name?
    SiteSetting.enable_names?
  end

  def username
    object.user.username
  end

  def avatar_template
    object.user.avatar_template
  end

  def slug
    topic&.slug
  end

  def title
    topic&.title
  end

  def category_id
    topic&.category_id
  end

  def moderator_action
    object.post_type == Post.types[:moderator_action] ||
      object.post_type == Post.types[:small_action]
  end

  def deleted_by
    BasicUserSerializer.new(object.deleted_by, root: false).as_json
  end

  def include_deleted_by?
    object.trashed?
  end

  def action_type
    object
      .user_actions
      .select { |ua| ua.user_id = object.user_id }
      .select { |ua| [UserAction::REPLY, UserAction::RESPONSE].include? ua.action_type }
      .first
      .try(:action_type)
  end

  # we need this to handle deleted topics which aren't loaded via
  # Topic.unscoped do
  #   Post.includes(:topic)
  # end
  # because Rails 4 "unscoped" support is still bugged (cf. https://github.com/rails/rails/issues/13775)
  def topic
    return @topic if @topic
    @topic = object.topic || Topic.with_deleted.find_by_id(object.topic_id)
  end
end