7096e42392
Fixes #1746 Queries could get prohibitively expensive.
60 lines
1.9 KiB
Ruby
60 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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class HomeFeed < Feed
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def initialize(account)
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@account = account
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super(:home, account.id)
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end
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def regenerating?
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redis.exists?("account:#{@account.id}:regeneration")
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end
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def get(limit, max_id = nil, since_id = nil, min_id = nil)
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limit = limit.to_i
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max_id = max_id.to_i if max_id.present?
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since_id = since_id.to_i if since_id.present?
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min_id = min_id.to_i if min_id.present?
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if min_id.present?
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redis_min_id = fetch_min_redis_id
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return from_redis(limit, max_id, since_id, min_id) if redis_min_id && min_id >= redis_min_id
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statuses = from_database(limit, redis_min_id, since_id, min_id)
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return statuses if statuses.size >= limit
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remaining_limit = limit - statuses.size
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min_id = statuses.first.id unless statuses.empty?
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from_redis(remaining_limit, max_id, since_id, min_id) + statuses
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else
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statuses = from_redis(limit, max_id, since_id, min_id)
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return statuses if statuses.size >= limit
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if since_id.present?
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redis_min_id = fetch_min_redis_id
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return statuses if redis_min_id.present? && since_id >= redis_min_id
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end
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remaining_limit = limit - statuses.size
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max_id = statuses.last.id unless statuses.empty?
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statuses + from_database(remaining_limit, max_id, since_id, min_id)
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end
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end
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protected
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def from_database(limit, max_id, since_id, min_id)
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scope = Status.where(account: @account).or(Status.where(account: @account.following))
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scope = scope.where(visibility: %i(public unlisted private))
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scope
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.to_a_paginated_by_id(limit, min_id: min_id, max_id: max_id, since_id: since_id)
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.reject { |status| FeedManager.instance.filter?(:home, status, @account) }
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.sort_by { |status| -status.id }
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end
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private
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def fetch_min_redis_id
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redis.zrangebyscore(key, '(0', '(+inf', limit: [0, 1], with_scores: true).first&.first&.to_i
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end
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end
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