class CategoryList include ActiveModel::Serialization attr_accessor :categories, :topic_users, :uncategorized def initialize(current_user) @categories = Category .includes(featured_topics: [:category]) .includes(:featured_users) .where('topics.visible' => true) .order('categories.topics_week desc, categories.topics_month desc, categories.topics_year desc') .to_a # Support for uncategorized topics uncategorized_topics = Topic .listable_topics .where(category_id: nil) .topic_list_order .limit(SiteSetting.category_featured_topics) if uncategorized_topics.present? totals = Topic.exec_sql("SELECT SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 WEEK') THEN 1 ELSE 0 END) as topics_week, SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 MONTH') THEN 1 ELSE 0 END) as topics_month, SUM(CASE WHEN created_at >= (CURRENT_TIMESTAMP - INTERVAL '1 YEAR') THEN 1 ELSE 0 END) as topics_year, COUNT(*) AS topic_count FROM topics WHERE topics.visible AND topics.deleted_at IS NULL AND topics.category_id IS NULL AND topics.archetype <> '#{Archetype.private_message}'").first uncategorized = Category.new({name: SiteSetting.uncategorized_name, slug: Slug.for(SiteSetting.uncategorized_name), featured_topics: uncategorized_topics}.merge(totals)) # Find the appropriate place to insert it: insert_at = nil @categories.each_with_index do |c, idx| if totals['topics_week'].to_i > (c.topics_week || 0) insert_at = idx break end end @categories.insert(insert_at || @categories.size, uncategorized) end # Remove categories with no featured topics unless we have the ability to edit one unless Guardian.new(current_user).can_create?(Category) @categories.delete_if { |c| c.featured_topics.blank? } end # Get forum topic user records if appropriate if current_user.present? topics = [] @categories.each { |c| topics << c.featured_topics } topics << @uncategorized topics.flatten! if topics.present? topics.compact! if topics.present? topic_lookup = TopicUser.lookup_for(current_user, topics) # Attach some data for serialization to each topic topics.each { |ft| ft.user_data = topic_lookup[ft.id] } end end end