Django download a file

Question

I m quite new to using Django and I am trying to develop a website where the user is able to upload a number of excel files  these files are then stored in a media folder Webproject project media   def upload request       if request POST          form   FileForm request POST  request FILES          if form is valid                form save               return render to response  project upload successful html       else          form   FileForm       args          args update csrf request       args  form     form      return render to response  project create html   args    The document is then displayed in a list along with any other document they have uploaded  which you can click into and it will displays basic info about them and the name of the excelfile they have uploaded  From here I want to be able to download the same excel file again using the link     lt a  href   project download  gt  Download Document  lt  a gt    My urls are   urlpatterns                    url r      ListView as view queryset Post objects all   order by  -date    25                                             template name  project project html                   url r    P lt pk gt  d      DetailView as view model Post  template name  project post html                   url r  upload     upload                 url r  download   P lt path gt        serve    document root   settings MEDIA ROOT                   static settings MEDIA URL  document root settings MEDIA ROOT    but I get the error  serve   got an unexpected keyword argument  document root   can anyone explain how to fix this   OR   Explain how I can get the uploaded files to to be selected and served using  def download request       file name    get the filename of desired excel file     path to file    get the path of desired excel file     response   HttpResponse mimetype  application force-download       response  Content-Disposition      attachment  filename  s    smart str file name      response  X-Sendfile     smart str path to file      return response

User · Answer

I use this method     if quote myfile         lt div class  quot  quot  gt           lt a role  quot button quot               href  quot    quote myfile url    quot              download  quot    quote myfile url    quot              class  quot btn btn-light text-dark ml-0 quot  gt              Download attachment          lt  a gt       lt  div gt     endif

User · Answer

Simple using html like this downloads the file mentioned using static keyword   lt a href     static  bt docx      class  btn btn-secondary px-4 py-2 btn-sm  gt Download CV lt  a gt

User · Answer

When you upload a file using FileField  the file will have a URL that you can use to point to the file and use HTML download attribute to download that file you can simply do this  models py The model py looks like this class CsvFile models Model       csv file   models FileField upload to  documents    views py  csv upload class CsvUploadView generic CreateView       model   CsvFile    fields     csv file      template name    upload html    csv download class CsvDownloadView generic ListView        model   CsvFile     fields     csv file       template name    download html   Then in your templates   Upload template upload html  lt div class  quot container quot  gt   lt form action  quot   quot  method  quot POST quot  enctype  quot multipart form-data quot  gt         csrf token           form media           form as p         lt button class  quot btn btn-primary btn-sm quot  type  quot submit quot  gt Upload lt  button gt   lt  form gt     download template download html      for document in object list           lt a href  quot    document csv file url    quot  download  class  quot btn btn-dark float-right quot  gt Download lt  a gt        endfor     I did not use forms  just rendered model but either way  FileField is there and it will work the same

User · Answer

You can add  download  attribute inside your tag to download files    lt a  href   project download  download gt  Download Document  lt  a gt    https   www w3schools com tags att a download asp

User · Answer

You missed underscore in argument document root  But it s bad idea to use serve in production  Use something like this instead   import os from django conf import settings from django http import HttpResponse  Http404  def download request  path       file path   os path join settings MEDIA ROOT  path      if os path exists file path           with open file path   rb   as fh              response   HttpResponse fh read    content type  application vnd ms-excel               response  Content-Disposition      inline  filename     os path basename file path              return response     raise Http404

User · Answer

If you hafe upload your file in media than  media  example-input-file txt views py def download csv request           file path   os path join settings MEDIA ROOT   example-input-file txt           if os path exists file path               with open file path   rb   as fh                  response   HttpResponse fh read    content type  quot application vnd ms-excel quot                   response  Content-Disposition      inline  filename     os path basename file path                  return response  urls py path  download csv    views download csv  name  download csv     download html a href  quot    url  download csv     quot  download  quot  quot

User · Answer

I ve found Django s FileField to be really helpful for letting users upload and download files  The Django documentation has a section on managing files  You can store some information about the file in a table  along with a FileField that points to the file itself  Then you can list the available files by searching the table

User · Answer

Reference   In view py Implement function like   def download request  id       obj   your model name objects get id id      filename   obj model attribute name path     response   FileResponse open filename   rb        return response

[python] Django download a file

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