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8feeaa5d69
### Super high level description: Adds a nested/threaded view for Discourse topics, allowing posts to be displayed as an indented reply tree instead of the default flat chronological stream. Backend: - New /n/:slug/:topic_id routes serving roots, children (paginated), and context (ancestor chain) endpoints - TreeLoader recursively fetches reply trees with configurable max depth, Sort supports top/new/old ordering - NestedViewPostStat caches per-post reply counts (direct + total descendants, whisper-aware) with a backfill job for existing data - NestedTopic model tracks per-topic opt-in and pinned post Frontend: - Recursive <NestedPost> / <NestedPostChildren> components with lazy-load expansion, cloaking, and scroll tracking - NestedViewCache service preserves expansion state and scroll position across back/forward navigation (15 entries, 10min TTL) - Context view for deep-linking to a specific post with its ancestor chain - Floating actions bar, sort selector, real-time MessageBus updates Site settings (hidden): nested_replies_enabled, nested_replies_default, nested_replies_default_sort, nested_replies_max_depth, nested_replies_cap_nesting_depth, nested_replies_toggle_mode_groups, plus a per-category default override. Co-authored-by: Rafael Silva <xfalcox@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Co-authored-by: Sérgio Saquetim <saquetim@discourse.org>
29 lines
803 B
Ruby
Vendored
29 lines
803 B
Ruby
Vendored
# frozen_string_literal: true
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class SimilarTopicsController < ApplicationController
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class SimilarTopic
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def initialize(topic)
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@topic = topic
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end
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attr_reader :topic
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def blurb
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Search::GroupedSearchResults.blurb_for(cooked: @topic.try(:blurb))
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end
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end
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def index
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title = params.require(:title)
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raw = params[:raw]
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if title.length < SiteSetting.min_title_similar_length || !Topic.count_exceeds_minimum?
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return render json: []
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end
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topics = Topic.similar_to(title, raw, current_user).to_a
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ActiveRecord::Associations::Preloader.new(records: topics, associations: [:nested_topic]).call
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topics.map! { |t| SimilarTopic.new(t) }
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render_serialized(topics, SimilarTopicSerializer, root: :similar_topics, rest_serializer: true)
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end
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end
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