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我使用BlobStore創建了Dropbox服務，但是我找不到從我的Django HTML模板實現文件下載選項的好方法。Blobstore Python API使用Django HTML模板下載URL
這裏是我的app.yaml
application: my_application
version: 1
runtime: python27
api_version: 1
threadsafe: false
handlers:
- url: /favicon\.ico
static_files: favicon.ico
upload: /favicon\.ico
- url: (/.*)*
script: main.app
libraries:
- name: django
version: latest
這裏是main.py
#!/usr/bin/env python
from django.core.management import setup_environ
import os
os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
from google.appengine.api import users
from google.appengine.ext import db
from google.appengine.ext import webapp
from google.appengine.ext import blobstore
from google.appengine.ext.blobstore import BlobInfo
from google.appengine.ext.webapp import blobstore_handlers
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext.webapp import template
from google.appengine.ext.webapp import util
import django
import webapp2
import wsgiref.handlers
class UserUpload(db.Model):
blob_key = blobstore.BlobReferenceProperty(required=True)
user = db.UserProperty(required=True)
user_id = db.StringProperty(required=True)
creation = db.DateTimeProperty(required=True, auto_now_add=True)
filename = db.StringProperty()
content_type = db.StringProperty()
size = db.IntegerProperty()
MD5 = db.StringProperty()
# Start Dumpbox login
class MainPage(webapp2.RequestHandler):
@util.login_required
def get(self):
logout_url = users.create_logout_url('/')
upload_url = blobstore.create_upload_url('/upload')
user = users.get_current_user()
q = UserUpload.all()
q.filter('user_id =', users.get_current_user().user_id())
q.order('-creation')
if user:
html = template.render('templates/header.html', {'title': 'Dumpbox', 'nickname': user.nickname(), 'url': upload_url})
html = html + template.render('templates/table.html', { 'file_name': 'File Name',
'content_type': 'Content Type',
'size': 'Size',
'timestamp': 'Creation Date',
'q': q
})
html = html + template.render('templates/footer.html', {'logout_link': logout_url})
self.response.out.write(html)
else:
self.redirect(users.create_login_url(self.request.uri))
class LogoutHandler(webapp2.RequestHandler):
def get(self):
self.auth.unset_session()
self.redirect(self.uri_for('home'))
class UploadHandler(blobstore_handlers.BlobstoreUploadHandler):
def post(self):
upload_files = self.get_uploads('file') # 'file' is file upload field in the form
blob_info = upload_files[0]
user_upload = UserUpload( user=users.get_current_user(),
user_id=users.get_current_user().user_id(),
blob_key=blob_info.key(),
filename=blob_info.filename,
content_type=blob_info.content_type,
size=blob_info.size,
creation=blob_info.creation,
MD5=blob_info.md5_hash
)
db.put(user_upload)
self.redirect('/')
class DownloadHandler(blobstore_handlers.BlobstoreDownloadHandler):
def get(self, resource):
resource = str(urllib.unquote(resource))
blob_info = blobstore.BlobInfo.get(resource)
self.send_blob(blob_info)
app = webapp2.WSGIApplication([('/', MainPage),('/upload', UploadHandler),('/download([^/]+)?', DownloadHandler)],debug=True)
wsgiref.handlers.CGIHandler().run(app)
def main():
run_wsgi_app(app)
if __name__ == '__main__':
main()
Django的模板使用一個表有一個複選框選擇要下載的文件，但我可以」找到一個實現它的好方法。
如何勾選複選框並提交表單以下載blobstore文件？
<form method="GET" action="">
<div id="table-wrapper">
<div id="table-scroll">
<table id="file_table" class="display" style="width:100%">
<tr>
<th style="width:10px"><input type="checkbox" onclick="checkAll(this)"/></th>
<th>{{file_name}}</th>
<th>{{content_type}}</th>
<th>{{size}}</th>
<th>{{timestamp}}</th>
</tr>
{% for file in q %}
{% if file.size > 0 %}
<tr>
<td><input id="{{file.blob_key}}" type="checkbox"/></td>
<td><a href="/{{file.blob_key}}/download">{{file.filename}}</a></td>
<td>{{file.content_type}}</td>
<td>{{file.size}} Bytes</td>
<td>{{file.creation}}</td>
</tr>
{% endif %}
{% endfor %}
</table>
</div>
</div>
<p><input type="submit" value="Download"></p>
</form>
感謝任何幫助。