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@ryanmats @theacodes @averikitsch
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# Copyright 2015 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Sample application that demonstrates how to use the App Engine Blobstore API.
For more information, see README.md.
"""
# [START gae_blobstore_sample]
from google.appengine.api import users
from google.appengine.ext import blobstore
from google.appengine.ext import ndb
from google.appengine.ext.webapp import blobstore_handlers
import webapp2
# This datastore model keeps track of which users uploaded which photos.
class UserPhoto(ndb.Model):
user = ndb.StringProperty()
blob_key = ndb.BlobKeyProperty()
class PhotoUploadFormHandler(webapp2.RequestHandler):
def get(self):
# [START gae_blobstore_upload_url]
upload_url = blobstore.create_upload_url('/upload_photo')
# [END gae_blobstore_upload_url]
# [START gae_blobstore_upload_form]
# To upload files to the blobstore, the request method must be "POST"
# and enctype must be set to "multipart/form-data".
self.response.out.write("""
<html><body>
<form action="{0}" method="POST" enctype="multipart/form-data">
Upload File: <input type="file" name="file"><br>
<input type="submit" name="submit" value="Submit">
</form>
</body></html>""".format(upload_url))
# [END gae_blobstore_upload_form]
# [START gae_blobstore_upload_handler]
class PhotoUploadHandler(blobstore_handlers.BlobstoreUploadHandler):
def post(self):
upload = self.get_uploads()[0]
user_photo = UserPhoto(
user=users.get_current_user().user_id(),
blob_key=upload.key())
user_photo.put()
self.redirect('/view_photo/%s' % upload.key())
# [END gae_blobstore_upload_handler]
# [START gae_blobstore_download_handler]
class ViewPhotoHandler(blobstore_handlers.BlobstoreDownloadHandler):
def get(self, photo_key):
if not blobstore.get(photo_key):
self.error(404)
else:
self.send_blob(photo_key)
# [END gae_blobstore_download_handler]
app = webapp2.WSGIApplication([
('/', PhotoUploadFormHandler),
('/upload_photo', PhotoUploadHandler),
('/view_photo/([^/]+)?', ViewPhotoHandler),
], debug=True)
# [END gae_blobstore_sample]
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