在Heroku下載所有文件到一個zip文件

我一直在用Heroku敲我的腦袋，同時試圖用我所有的收據文件數據下載一個zip文件。在Heroku下載所有文件到一個zip文件

的文件存儲在Amazon S3和它所有的作品在我的開發機上很好..

我認爲它與將它視爲做的，放棄了以前的解決方案，因爲Heroku的與他們的文件系統的一些嚴格的政策，所以我使用了tmp文件夾，但問題似乎並不存在。我已經嘗試從s3（使用openUri）直接加載zip文件，但它似乎無法在Heroku上運行。

我的Heroku代碼不會將文件加載到zip中，可能會出現什麼問題？

這裏是我的模型方法：

def zip_receipts(search_hash=nil) 

    require 'zip/zip' 
    require 'zip/zipfilesystem' 

    t=File.open("#{Rails.root}/tmp/#{Digest::MD5.hexdigest(rand(12).to_s)}_#{Process.pid}",'w') 

# t = Tempfile.new(Digest::MD5.hexdigest(rand(12).to_s))  

    # Give the path of the temp file to the zip outputstream, it won't try to open it as an archive. 
    Zip::ZipOutputStream.open(t.path) do |zos| 
    logger.debug("search hash Zip: #{search_hash.inspect}") 
    self.feed(search_hash).each do |receipt| 
     begin 
     require 'open-uri' 
     require 'tempfile' 

     #configures filename 
     filen = File.basename(receipt.receipt_file_file_name) 
     ext= File.extname(filen) 
     filen_noext = File.basename(receipt.receipt_file_file_name, '.*') 
     filen=filen_noext+SecureRandom.hex(10)+ext 
     logger.info("Info Zip - Filename: #{filen}") 
     # Create a new entry on the zip file 
     zos.put_next_entry(filen) 
    # logger.info("Info Zip - Added entry: #{zos.inspect}") 
     # Add the contents of the file, reading directly from amazon 
     tfilepath= "#{Rails.root}/tmp/#{File.basename(filen,ext)}_#{Process.pid}" 

     open(tfilepath,"wb") do |file| 
     file << open(receipt.authenticated_url(:original),:ssl_verify_mode => OpenSSL::SSL::VERIFY_NONE).read 
     end 

     zos.print IO.binread tfilepath 
     # logger.info("Info Zip - Extracted from amazon: #{zos.inspect}") 
     rescue Exception => e 
      logger.info("exception #{e}") 
     end # closes the exception begin 
    end #closes receipts cycle 
    end #closes zip file stream cycle 
    # The temp file will be deleted some time... 
    t.close 

    #returns the path for send file controller to act 
    t.path 

    end

我的控制器：

def download_all 
    @user = User.find_by_id(params[:user_id]) 

    filepath = @user.zip_receipts 
    # Send it using the right mime type, with a download window and some nice file name. 
    send_file(filepath,type: 'application/zip', disposition: 'attachment',filename:"MyReceipts.zip") 
    end

而且我寫的也是我的觀點和路線，因此它可能成爲其他任何人試圖執行一個下載的所有功能

的routes.rb

resources :users do 
post 'download_all' 
end

我看來

<%= link_to "Download receipts", user_download_all_path(user_id:user.id), method: :post %>

來源

2013-03-26 MrWater

的問題似乎是與搜索哈希，和SQL查詢，而不是代碼本身。出於某種原因，收據會列出，但不會下載。因此，它是一個完全不同的問題

到底我有這樣的代碼模型

def zip_receipts(search_hash=nil) 

    require 'zip/zip' 
    require 'zip/zipfilesystem' 

    t=File.open("#{Rails.root}/tmp/MyReceipts.zip_#{Process.pid}","w") 

# t = Tempfile.new(Digest::MD5.hexdigest(rand(12).to_s)) 
    #"#{Rails.root}/tmp/RecibosOnline#{SecureRandom.hex(10)}.zip" 

puts "Zip- Receipts About to enter" 
    # Give the path of the temp file to the zip outputstream, it won't try to open it as an archive. 
    Zip::ZipOutputStream.open(t.path) do |zos| 
    self.feed(search_hash).each do |receipt| 
     begin 
     require 'open-uri' 
     require 'tempfile' 

     filen = File.basename(receipt.receipt_file_file_name) 
     ext= File.extname(filen) 
     filen_noext = File.basename(receipt.receipt_file_file_name, '.*') 
     filen=filen_noext+SecureRandom.hex(10)+ext 
     # puts "Info Zip - Filename: #{filen}" 
     # Create a new entry on the zip file 
     zos.put_next_entry(filen) 
     zos.print open(receipt.authenticated_url(:original),:ssl_verify_mode => OpenSSL::SSL::VERIFY_NONE).read 
     rescue Exception => e 
      puts "exception #{e}" 
     end # closes the exception begin 
    end #closes receipts cycle 
    end #closes zip file stream cycle 
    # The temp file will be deleted some time... 
    t.close 

    #returns the path for send file controller to act 
    t.path 

    end

來源

2013-03-26 18:43:09 MrWater

在Heroku下載所有文件到一個zip文件

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