rTurk無法從Amazon Mechanical Turk獲得結果

我遇到了一個非常奇怪的問題。我能夠正確地向亞馬遜Mechanical Turk提交HIT。我有一個cron不斷檢查是否有任何工作準備好進行審查。然而，當一項工作完成時，我沒有收到它，但是HIT被處理掉了（在函數內部完成的工作來檢查它）。奇怪的是，這個問題並不總是發生，而是經常發生。rTurk無法從Amazon Mechanical Turk獲得結果

這是函數的代碼審查點擊：

def self.review_hits 
hits = RTurk::Hit.all_reviewable 
p "HITS" 
p hits 
puts "REVIEWABLE HITS: " + hits.count.to_s 
hits_results = {} 

unless hits.empty? 
    hits.each do |hit| 
    puts "IN EACH HIT" 
    p hit 
    results = [] 
    hit.expire! 

    # Get results for each HIT assignment 
    hit.assignments.each do |assignment| 
     # Check if the assignmment has been submitted. It can be the case where the maximum waiting time 
     # for the job to finish expired and there remain assignments that are not submitted 
     if assignment.status == 'Submitted' 
     p "STATUS 1" 
     p assignment.status 
     temp = {} 
     temp[:worker_id] = assignment.worker_id 
     temp[:answer] = assignment.answers 
     p "STATUS 2" 
     p assignment.status 
     assignment.approve! 
     results << temp 
     end 
    end 

    begin 
     hit.dispose! 
    rescue 
    end 

    hits_results[hit.id] = {} 
    hits_results[hit.id][:results] = results 
    end 

    # Let Rails know that there are new results 
    AmazonTurkHit.store_results(hits_results) 
end

端

所以放「審查的HITS：」是0，但HIT設置。有誰知道爲什麼？

來源

2014-10-20 Jordi Mares Soler