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28 lines
636 B
28 lines
636 B
9 years ago
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class Feed
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def initialize(type, account)
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@type = type
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@account = account
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end
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def get(limit, offset = 0)
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unhydrated = redis.zrevrange(key, offset, limit)
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status_map = Hash.new
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# If we're after most recent items and none are there, we need to precompute the feed
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return PrecomputeFeedService.new.(@type, @account).take(limit) if unhydrated.empty? && offset == 0
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Status.where(id: unhydrated).each { |status| status_map[status.id.to_s] = status }
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return unhydrated.map { |id| status_map[id] }
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end
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private
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def key
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"feed:#{@type}:#{@account.id}"
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end
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def redis
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$redis
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end
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end
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