我想以Django应用程序前端的形式显示服务器上MEDIA_ROOT中的文件列表。
以下是我要完成的工作：
我的实际代码如下。我只显示受此问题影响的类，函数和文件。在问题的结尾，如果缺少某些内容，您将找到指向整个项目的链接。
views.py(我有两个功能，因为我尝试了两种方法)
class SelectPredFileView(TemplateView):
"""
This view is used to select a file from the list of files in the server.
"""
model = FileModel
fields = ['file']
template_name = 'select_file_predictions.html'
success_url = '/predict_success/'
files = os.listdir(settings.MEDIA_ROOT)
def my_view(request):
my_objects = get_list_or_404(FileModel, published=True)
return my_objects
# TODO: file list not displayed in the HTML, fix
def getfilelist(self, request):
filepath = settings.MEDIA_ROOT
file_list = os.listdir(filepath)
return render_to_response('templates/select_file_predictions.html', {'file_list': file_list})
settings.py
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(os.path.dirname(BASE_DIR), "static")
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, "media")
models.py
from django.db import models
from django.conf import settings
class FileModel(models.Model):
file = models.FileField(null=True, blank=True)
timestamp = models.DateTimeField(auto_now_add=True)
path = models.FilePathField(path=settings.MEDIA_ROOT, default=settings.MEDIA_ROOT)
urls.py
from django.contrib import admin
from django.conf import settings
from django.urls import path, re_path
from django.views.static import serve
from django.conf.urls import url, include
from django.conf.urls.static import static
from App.views import UploadView, UploadSuccessView, IndexView, SelectPredFileView, PredictionsSuccessView
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^App/', include('App.urls'), name="App"),
url('index/', IndexView.as_view(), name='index'),
# Urls to upload the file and confirm the upload
url('fileupload/', UploadView.as_view(), name='upload_file'),
url('upload_success/', UploadSuccessView.as_view(), name='upload_success'),
# Urls to select a file for the predictions
url('fileselect/', SelectPredFileView.as_view(), name='file_select'),
url('predict_success/', PredictionsSuccessView.as_view(), name='pred_success'),
]
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
if settings.DEBUG:
import debug_toolbar
urlpatterns = [
path('__debug__/', include(debug_toolbar.urls)),
re_path(r'^media/(?P.*)$', serve, {'document_root': settings.MEDIA_ROOT, }),
] + urlpatterns
select_file_predictions.html
{% extends "index.html" %}
{% block content %}
{% csrf_token %}
{{ form.as_p }}
{% for file in my_objects %}
{% endfor %}
Upload file
{% endblock %}
问题：该文件未显示在html模板中。
我无法解决此问题的问题：
解决方案
我会做这样的事情：
views.py
from os import listdir
from os.path import isfile, join
import settings
from django.views.generic.base import TemplateView
class MyFilesView(TemplateView):
template_name = "select_file_predictions.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
# List of files in your MEDIA_ROOT
media_path = settings.MEDIA_ROOT
myfiles = [f for f in listdir(media_path) if isfile(join(media_path, f))]
context['myfiles'] = myfiles
return context
select_file_predictions.html
{% extends "index.html" %}
{% block content %}
{% csrf_token %}
{{ form.as_p }}
{% for myfile in myfiles %}
{% endfor %}
Upload file
{% endblock %}