def uploadBrowser(request):
"""
See:
https://developers.google.com/youtube/2.0/developers_guide_protocol#Browser_based_uploading
Steps:
1. Submit an Upload API request. This request request contains the
information about the uploaded video file, but does NOT include the
actual video file. So this includes meta data like title, description,
category, keywords.
2. Extract values from the API response. The API response contains an upload
URL and upload token that enable the user to upload the actual video file
These will have to be included on the webpage where the user submits the
video file.
3. After extracting the upload URL and upload token from the API response,
display a form so that the user can upload the actual video file.
The form must use the upload URL as the value of the <form> tag's action
attribute and have a hidden input field containing the upload token.
The form should verify that the user actually has selected a file to
upload before allowing the user to actually submit the form. [Use JS]
Author: Nnoduka Eruchalu
"""
if request.method == 'POST':
# get the metadata
form = YoutubeBrowerUploadForm(request.POST)
if form.is_valid():
# will only create video info after upload finishes
# try to create post_url and token to create a video upload form
api = Api()
# upload method needs authentication
api.authenticate()
data = api.uploadBrowser(
title = form.cleaned_data['title'],
description = form.cleaned_data['description'],
keywords = form.cleaned_data['tags'])
protocol = 'https' if request.is_secure() else 'http'
next_url = '%s://%s%s' % (protocol, request.get_host(),
reverse('youtubeUploadBrowserReturn'))
# create video upload form
return render_to_response("youtube/uploadBrowserVideo.html",
{'youtube_token':data['youtube_token'],
'post_url':data['post_url'],
'next_url':next_url
},
context_instance =RequestContext(request))
# if request.method != 'POST'
else:
form = YoutubeBrowerUploadForm()
return render_to_response("youtube/uploadBrowserMeta.html",
{'form':form,
'nav_current':'file'},
context_instance =RequestContext(request))
def entry(self):
"""
Description: Connect to Youtube Api and retrieves the video entry object
Arguments: None
Return: YouTube API video entry object
Author: Nnoduka Eruchalu
"""
api = Api()
api.authenticate()
return api.getVideo(self.video_id)
def save(self, *args, **kwargs):
"""
Description: Synchronize the video info on db with that on YouTube
Arguments: *args, **kwargs
Return: None
Author: Nnoduka Eruchalu
"""
# if this is a new instance add details from api
if self._get_pk_val() is None:
# save the instance so can call tags.set()
super(Video, self).save(*args, **kwargs)
# connect to api and get the details
entry = self.entry()
self.sync_db(entry)
# save the instance
super(Video, self).save(*args, **kwargs)
# save thumbnails
for thumbnail in entry.media.thumbnail:
t = Thumbnail()
t.url = thumbnail.url
t.video = self
t.save()
# can't import on startup... because Media imports this file
from ycp.apps.media.models import Media
Media(video=self).save()
# if this is an instance being updated
else:
if self.file_upload: # can only modify video if you own it
# connect to the api and update the video on YouTube
api = Api()
api.authenticate()
# Update the info on youtube
keywords = [t.name for t in self.tags.all()]
updated_entry = api.updateVideo(self.video_id, self.title,
self.description, keywords,
self.private)
# and sync youtube and the db
self.sync_db(updated_entry)
# save the instance
super(Video, self).save(*args, **kwargs)
def delete(self, *args, **kwargs):
"""
Description: Deletes the video from youtube if you own the video
Arguments: *args, **kwargs
Return: None
Author: Nnoduka Eruchalu
"""
if self.file_upload:
api = Api()
# authentication required for delete
api.authenticate()
# send YouTube delete request
api.deleteVideo(self.video_id)
# clear tags()
self.tags.clear()
# call the super method
return super(Video, self).delete(*args, **kwargs)
