Django File Upload

问题:

Here is the code in views:

def index(request):
    if request.method == 'POST':
        a=request.POST
#        logging.debug(a["title"])
#        logging.debug(a["file"])
        #form = UploadFileForm()
        form = UploadFileForm(request.POST, request.FILES)
        #handle_uploaded_file(request.FILES['file'])
        if form.is_valid():
            handle_uploaded_file(request.FILES['file'])
            return HttpResponseRedirect('/')
    else:
        form = UploadFileForm()
    return render('upload.html', {'form': form})


def handle_uploaded_file(file):
#    logging.debug("upload_here")
    if file:
        destination = open('/tmp/'+file.name, 'wb+')
        #destination = open('/tmp', 'wb+')
        for chunk in file.chunks():
            destination.write(chunk)
        destination.close()

Here is the code in models:

class UploadFileForm(forms.Form):
    title = forms.CharField(max_length=50)
    file  = forms.FileField(type="file")

Here is the code in upload.html:

{% block upload %}

<form enctype="multipart/form-data" method="post" action="/upload/">

    {% csrf_token %}
    <table>
        <tr><td>
            <input type="file" value="title" name="title" id="title" /><br />
            <input type="submit" value="Submit" id="Save"/>
        </td></tr>
    </table>
</form>
{% endblock %}

After I select a file, then press the submit button, an error appears:

AttributeError at /upload/

'WSGIRequest' object has no attribute 'chunks'

Request Method: POST Request URL: http://www.mywebsite.com/upload/ Django Version: 1.3 Exception Type: AttributeError Exception Value:

'WSGIRequest' object has no attribute 'chunks'

Exception Location: /usr/src/wpcms/views.py in handle_uploaded_file, line 63

Any ideas what I am doing wrong here? Am I forgetting a settings line? Or, an import line? Thank you.

settings.py is:

TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
)

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'cms.middleware.page.CurrentPageMiddleware',
    'cms.middleware.user.CurrentUserMiddleware',
    'cms.middleware.toolbar.ToolbarMiddleware',
    'cms.middleware.media.PlaceholderMediaMiddleware',
    'django.middleware.doc.XViewMiddleware',
    'django_authopenid.middleware.OpenIDMiddleware',
)

TEMPLATE_CONTEXT_PROCESSORS = (
    'django.core.context_processors.auth',
    'django.core.context_processors.debug',
    'django.core.context_processors.i18n',
    'django.core.context_processors.request',
    'django.core.context_processors.media',
    'cms.context_processors.media',
    'django_authopenid.context_processors.authopenid',
)

CMS_TEMPLATES = (
#    ('basic.html', 'Basic Template'),
#    ('template_1.html', 'Template One'),
#    ('template_2.html', 'Template Two'),
     ('home.html', gettext('Default')),
     ('about.html', gettext('About')),
#     ('blog.html', gettext('blog')),
     ('contact.html', gettext('Contact')),
)

ROOT_URLCONF = 'urls'

CMS_APPLICATIONS_URLS = (
    ('cmsplugin_news.urls', 'News'),
)

CMS_NAVIGATION_EXTENDERS = (
    ('cmsplugin_news.navigation.get_nodes', 'News navigation'),
)

THUMBNAIL_PROCESSORS = (
    'easy_thumbnails.processors.colorspace',
    'easy_thumbnails.processors.autocrop',
    #'easy_thumbnails.processors.scale_and_crop',
    'filer.thumbnail_processors.scale_and_crop_with_subject_location',
    'easy_thumbnails.processors.filters',
)

CMS_MODERATOR = False

TEMPLATE_DIRS = (
    os.path.join(PROJECT_DIR, 'templates'),
)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.admin',
    'django.contrib.comments',
    'registration',
    'django_authopenid',
    'cms',
    'menus',
    'mptt',
    'appmedia',
    'south',
    'cms.plugins.text',
    'cms.plugins.picture',
    'cms.plugins.link',
    'cms.plugins.file',
    'easy_thumbnails',
    'filer',
    'cmsplugin_filer_file',
    'cmsplugin_filer_folder',
    'cmsplugin_filer_image',
    'cmsplugin_filer_teaser',
    'cmsplugin_filer_video',
    'cms.plugins.snippet',
    'cms.plugins.googlemap',
    'publisher',
    'reversion',
    'cms.plugins.teaser',
    'cms.plugins.video',
    'cms.plugins.twitter',
    'cmsplugin_facebook',
    'cmsplugin_news',
    'cmsplugin_comments',
    'captcha',
)

回答1:

There are multiple issues. Here is a fixed version that works:

1) Change your template to use the actual form:

<form enctype="multipart/form-data" method="post" action="/upload/">
   {% csrf_token %}   
   <table>
       {{form.as_table}}
    </table>
    <input type="submit" value="Submit" id="Save"/>
</form>

2) Update your form to remove unnecessary type in the FileField:

class UploadFileForm(forms.Form):
    title = forms.CharField(max_length=50)
    file  = forms.FileField()

3) Update your view to add the CSRF:

def index(request):
    if request.method == 'POST':
        a=request.POST
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            handle_uploaded_file(request.FILES['file'])
            return HttpResponseRedirect('/')
    else:
        form = UploadFileForm()

    c = {'form': form}
    c.update(csrf(request))
    return render_to_response('upload.html', c)

Hope this helps!