Django的工作流程從一個視圖重定向到另一個，並顯示頁面的url參數

Question

我想創建一個Web應用程序，用戶將選擇一個文件，獲取數據處理，然後重定向到帶有url參數的確認頁面（？狀態= 1）如何從處理視圖移動到確認視圖，然後顯示確認頁面？
我已經把我的代碼下面這在我的觀點和URL不工作PY文件

# views.py 
def marketdata_processing(request): 
    if request.method == 'POST': 
     uploadform = forms.MyUploadForm(request.POST, request.FILES) 
     if uploadform.is_valid(): 
      newdoc = models.UploadDocument(docfile=request.FILES['uploadfile']) 
      filename = request.FILES['uploadfile'].name 
      newdoc.save() 
      selecteddate = newdoc.getselecteddate() # Model method calculated 
      fileid = newdoc.pk 
      request.session['fileid'] = fileid 
      request.session['selecteddate'] = selecteddate 
      return redirect(reverse('views.confirm_input_details')) 
    else: 
     uploadform = forms.MyUploadForm() 
    # Render list page with the documents and the form 
    return render_to_response(
     'mytemplate.html', 
     {'uploadform': uploadform}, 
     context_instance=RequestContext(request) 
    ) 


def confirm_input_details(request): 
    fileid = request.session['fileid'] 
    selecteddate = request.session['selecteddate'] 
    msg = 'Proceed to import data for %s? \nFileID Being Imported is %s ' % (
     selecteddate, fileid,) 
    url = reverse('views.confirm_input_details', kwargs={'status': 1}) 
    return HttpResponseRedirect(url) 

# urls.py 
urlpatterns = [ 
    url(r'', views.marketdata_processing, name='myapp/mytemplate.html'), 
    url(r'^\?status=(?P<status>[0-9]+)$', 
     views.confirm_input_details, name='myapp/myconfirmpage.html'), 
] 

Answer 1

有一對夫婦的問題，我覺得在你的代碼存在：

• 縮進是一個非常在Python代碼中是重要的事情。請確保'marketdata_processing'視圖中if-else語句的縮進順序正確。請注意，在您的代碼中：

  return render_to_response('mytemplate.html', 
           {'uploadform': uploadform}, 
           context_instance=RequestContext(request)) 
  

  將始終執行，因爲它在else語句之外。你可能想縮進它的其他下（如果這是有道理的） - 像這樣：

  else: 
      uploadform = forms.MyUploadForm() 
      return render_to_response('mytemplate.html', 
            {'uploadform': uploadform}, 
            context_instance=RequestContext(request)) 
  

• 而不是「重定向（反向（））」嘗試「HttpResponseRedirect（）」在處理視圖調用確認頁視圖，就像這樣：

  from django.http import HttpResponseRedirect 
  
  return HttpResponseRedirect('/?status=1')  --> relative URL shown 
  

  地方相對/絕對URL（包括將工作）以上。

• 最後，使您的確認頁模板與上下文參數，像這樣的「confirm_input_details」視圖：

  def confirm_input_details(request): 
       fileid = request.session['fileid'] 
       selecteddate = request.session['selecteddate'] 
       msg = 'Proceed to import data for %s? \nFileID Being Imported is %s ' % (selecteddate, fileid) 
  
       return render_to_response('confirmpage_template.html'), 
             {'fileid': fileid, 
             'selecteddate': selecteddate, 
             'msg': msg}, context_instance=RequestContext(request)) 
  

** P.S：堅持整齊基礎，它會工作。你碰巧在同一個視圖中調用你的confirm_input_details視圖。據我所知，這可能會讓你陷入無限循環。任何視圖的簡單概念是：

take input:request, parameters 
    --> process logic with parameters 
     --> render a specific template or call another url where a template is being rendered. 

如果沒有渲染模板，則不能期望頁面顯示。