146 lines
3.6 KiB
Ruby
146 lines
3.6 KiB
Ruby
# frozen_string_literal: true
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class TopicList
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include ActiveModel::Serialization
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cattr_accessor :preloaded_custom_fields
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self.preloaded_custom_fields = Set.new
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def self.on_preload(&blk)
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(@preload ||= Set.new) << blk
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end
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def self.cancel_preload(&blk)
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if @preload
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@preload.delete blk
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if @preload.length == 0
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@preload = nil
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end
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end
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end
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def self.preload(topics, object)
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if @preload
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@preload.each { |preload| preload.call(topics, object) }
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end
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end
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attr_accessor(
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:more_topics_url,
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:prev_topics_url,
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:draft,
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:draft_key,
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:draft_sequence,
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:filter,
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:for_period,
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:per_page,
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:top_tags,
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:current_user,
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:tags,
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:shared_drafts,
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:category,
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:publish_read_state
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)
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def initialize(filter, current_user, topics, opts = nil)
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@filter = filter
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@current_user = current_user
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@topics_input = topics
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@opts = opts || {}
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if @opts[:category]
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@category = Category.find_by(id: @opts[:category_id])
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end
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if @opts[:tags]
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@tags = Tag.where(id: @opts[:tags]).all
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end
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@publish_read_state = !!@opts[:publish_read_state]
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end
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def top_tags
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opts = @category ? { category: @category } : {}
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opts[:guardian] = Guardian.new(@current_user)
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Tag.top_tags(opts)
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end
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def preload_key
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if @category
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"topic_list_#{@category.url.sub(/^\//, '')}/#{@category.id}/l/#{@filter}"
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else
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"topic_list_#{@filter}"
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end
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end
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# Lazy initialization
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def topics
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@topics ||= load_topics
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end
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def load_topics
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@topics = @topics_input
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# Attach some data for serialization to each topic
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@topic_lookup = TopicUser.lookup_for(@current_user, @topics) if @current_user
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@category_user_lookup = CategoryUser.lookup_for(@current_user, @topics.map(&:category_id).uniq) if @current_user
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post_action_type =
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if @current_user
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if @opts[:filter].present?
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if @opts[:filter] == "bookmarked"
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PostActionType.types[:bookmark]
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elsif @opts[:filter] == "liked"
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PostActionType.types[:like]
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end
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end
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end
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# Include bookmarks if you have bookmarked topics
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if @current_user && !post_action_type
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post_action_type = PostActionType.types[:bookmark] if @topic_lookup.any? { |_, tu| tu && tu.bookmarked }
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end
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# Data for bookmarks or likes
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post_action_lookup = PostAction.lookup_for(@current_user, @topics, post_action_type) if post_action_type
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# Create a lookup for all the user ids we need
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user_ids = []
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@topics.each do |ft|
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user_ids << ft.user_id << ft.last_post_user_id << ft.featured_user_ids << ft.allowed_user_ids
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end
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avatar_lookup = AvatarLookup.new(user_ids)
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primary_group_lookup = PrimaryGroupLookup.new(user_ids)
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@topics.each do |ft|
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ft.user_data = @topic_lookup[ft.id] if @topic_lookup.present?
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ft.category_user_data = @category_user_lookup[ft.category_id] if @category_user_lookup.present?
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if ft.user_data && post_action_lookup && actions = post_action_lookup[ft.id]
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ft.user_data.post_action_data = { post_action_type => actions }
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end
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ft.posters = ft.posters_summary(
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avatar_lookup: avatar_lookup,
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primary_group_lookup: primary_group_lookup
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)
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ft.participants = ft.participants_summary(avatar_lookup: avatar_lookup, user: @current_user)
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ft.topic_list = self
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end
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if preloaded_custom_fields.present?
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Topic.preload_custom_fields(@topics, preloaded_custom_fields)
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end
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TopicList.preload(@topics, self)
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@topics
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end
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def attributes
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{ 'more_topics_url' => page }
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end
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end
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