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mastodon/app/models/feed.rb

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# frozen_string_literal: true
class Feed
def initialize(type, account)
@type = type
@account = account
end
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def get(limit, max_id = nil, since_id = nil)
max_id = '+inf' if max_id.blank?
since_id = '-inf' if since_id.blank?
unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", "(#{since_id}", limit: [0, limit], with_scores: true).map(&:last).map(&:to_i)
# If we're after most recent items and none are there, we need to precompute the feed
if unhydrated.empty? && max_id == '+inf' && since_id == '-inf'
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RegenerationWorker.perform_async(@account.id, @type)
@statuses = Status.send("as_#{@type}_timeline", @account).cache_ids.paginate_by_max_id(limit, nil, nil)
else
status_map = Status.where(id: unhydrated).cache_ids.map { |s| [s.id, s] }.to_h
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@statuses = unhydrated.map { |id| status_map[id] }.compact
end
@statuses
end
private
def key
FeedManager.instance.key(@type, @account.id)
end
def redis
Redis.current
end
end