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40 lines
1 KiB
Ruby
40 lines
1 KiB
Ruby
module Sidekiq
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module Paginator
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def page(key, pageidx=1, page_size=25, opts=nil)
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current_page = pageidx.to_i < 1 ? 1 : pageidx.to_i
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pageidx = current_page - 1
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total_size = 0
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items = []
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starting = pageidx * page_size
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ending = starting + page_size - 1
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Sidekiq.redis do |conn|
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type = conn.type(key)
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case type
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when 'zset'
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rev = opts.try(:[], :reverse)
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total_size, items = conn.multi do
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conn.zcard(key)
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if rev
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conn.zrevrange(key, starting, ending, :with_scores => true)
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else
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conn.zrange(key, starting, ending, :with_scores => true)
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end
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end
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when 'list'
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total_size, items = conn.multi do
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conn.llen(key)
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conn.lrange(key, starting, ending)
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end
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when 'none'
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return [1, 0, []]
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else
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raise "can't page a #{type}"
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end
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end
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[current_page, total_size, items]
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end
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end
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end
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