72 行
1.8 KiB
Ruby
72 行
1.8 KiB
Ruby
class GekanatorPostsController < ApplicationController
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def index
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posts =
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Post
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.preload(:post_similarities, tags: :tag_name)
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.with_attached_thumbnail
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.order(Arel.sql(
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'COALESCE(posts.original_created_before - INTERVAL 1 MINUTE, ' \
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'posts.original_created_from, posts.created_at) DESC, posts.id DESC'))
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.to_a
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active_tags_by_post_id =
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posts.each_with_object({ }) do |post, h|
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h[post.id] = post.tags.reject(&:deprecated?)
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end
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render json: {
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posts: posts.map { |post|
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post_json(post,
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active_tags_by_post_id:)
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}
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}
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end
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private
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def post_json post, active_tags_by_post_id:
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{
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id: post.id,
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url: post.url,
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title: post.title,
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thumbnail: thumbnail_url(post),
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thumbnail_base: post.thumbnail_base,
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original_created_from: post.original_created_from,
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original_created_before: post.original_created_before,
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post_similarity_edges: post_similarity_edges_json(
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post,
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active_tags_by_post_id:),
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tags: active_tags_by_post_id.fetch(post.id, []).map { |tag| tag_json(tag) }
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}
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end
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def post_similarity_edges_json post, active_tags_by_post_id:
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post
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.post_similarities
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.filter_map do |similarity|
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next unless active_tags_by_post_id.key?(similarity.target_post_id)
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{
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target_post_id: similarity.target_post_id,
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cos: similarity.cos.to_f
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}
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end
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end
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def tag_json tag
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{
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id: tag.id,
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name: tag.name,
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category: tag.category
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}
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end
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def thumbnail_url post
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return nil unless post.thumbnail.attached?
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rails_storage_proxy_url(post.thumbnail, only_path: false)
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rescue
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nil
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end
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end
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