catstodon/app/serializers/activitypub/collection_serializer.rb
ThibG 9d3c6f1849 Improved remote thread fetching (#10106)
* Fetch up to 5 replies when discovering a new remote status

This is used for resolving threads downwards. The originating
server must add a “replies” attributes with such replies for it to
be useful.

* Add some tests for ActivityPub::FetchRepliesWorker

* Add specs for ActivityPub::FetchRepliesService

* Serialize up to 5 public self-replies for ActivityPub notes

* Add specs for ActivityPub::NoteSerializer

* Move exponential backoff logic to a worker concern

* Fetch first page of paginated collections when fetching thread replies

* Add specs for paginated collections in replies

* Move Note replies serialization to a first CollectionPage

The collection isn't actually paginable yet as it has no id nor
a `next` field. This may come in another PR.

* Use pluck(:uri) instead of map(&:uri) to improve performances

* Fix fetching replies when they are in a CollectionPage
2019-02-28 15:22:21 +01:00

43 lines
1.2 KiB
Ruby

# frozen_string_literal: true
class ActivityPub::CollectionSerializer < ActiveModel::Serializer
def self.serializer_for(model, options)
return ActivityPub::NoteSerializer if model.class.name == 'Status'
return ActivityPub::CollectionSerializer if model.class.name == 'ActivityPub::CollectionPresenter'
super
end
attribute :id, if: -> { object.id.present? }
attribute :type
attribute :total_items, if: -> { object.size.present? }
attribute :next, if: -> { object.next.present? }
attribute :prev, if: -> { object.prev.present? }
attribute :part_of, if: -> { object.part_of.present? }
has_one :first, if: -> { object.first.present? }
has_one :last, if: -> { object.last.present? }
has_many :items, key: :items, if: -> { (!object.items.nil? || page?) && !ordered? }
has_many :items, key: :ordered_items, if: -> { (!object.items.nil? || page?) && ordered? }
def type
if page?
ordered? ? 'OrderedCollectionPage' : 'CollectionPage'
else
ordered? ? 'OrderedCollection' : 'Collection'
end
end
def total_items
object.size
end
private
def ordered?
object.type == :ordered
end
def page?
object.part_of.present? || object.page.present?
end
end