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models.py
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models.py
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import settings, logging
import flickr
from google.appengine.ext import db
from google.appengine.api import memcache
class PhotoBackend():
user_id = None
thumb_size = 72
imgmax = 640
thumb_cropped = True
def __init__(self, user):
self.user_id = user.GetUsername()
self.thumb_size = user.thumb_size
self.imgmax = user.full_size
self.thumb_cropped = user.thumb_cropped
def GetAllAlbums(self):
return []
def GetFeaturedAlbums(self, featured=[]):
albums = self.GetAllAlbums()
featured_albums = []
for album in albums:
if album['title'] not in featured:
continue
featured_albums.append(album)
# Sort by name
featured_albums.sort(key=lambda a: a['title'])
if 'all' in featured:
featured_albums.append({'id': 'all', 'title': 'all'})
return featured_albums
def GetPhotosInAlbum(self, album, featured=[]):
return []
def GetSinglePhoto(self, album, photo_id):
return None
def CacheGet(self, key):
if not settings.MEMCACHE_ENABLED or not key:
return None
return memcache.get(key)
def CacheSet(self, key, value):
if not settings.MEMCACHE_ENABLED or not key:
return True
return memcache.set(key, value)
def CacheClear(self):
pass
class PicasaBackend(PhotoBackend):
gdata = None
ALBUM_FEED_URI = '/data/feed/api/user/%s/album/%s?kind=photo&thumbsize=%s&imgmax=%s'
def __init__(self, user):
PhotoBackend.__init__(self, user)
import gdata.photos.service
import gdata.alt.appengine
self.gdata = gdata.photos.service.PhotosService()
gdata.alt.appengine.run_on_appengine(self.gdata)
def GetAllAlbums(self):
logging.info('GetAllAlbums called')
# check memcache
key = 'picasa_albums'
albums = self.CacheGet(key)
if albums:
return albums
albums = []
albums_feed = self.gdata.GetUserFeed(user=self.user_id, kind='album')
for album in albums_feed.entry:
albums.append({
'id': album.gphoto_id.text,
'title': album.title.text,
})
albums.sort(key=lambda a: a['title'])
# set memcache
self.CacheSet(key, albums)
return albums
def GetPhotosInAlbum(self, album, featured=[]):
logging.info('GetPhotosInAlbum called')
if self.thumb_cropped:
thumb_size = "%dc" % self.thumb_size
else:
thumb_size = "%du" % self.thumb_size
# check memcache
key = "picasa_album_%s_%s_%s" % (album, thumb_size, self.imgmax)
photos = self.CacheGet(key)
if photos:
return photos
photos = []
albums = []
if album == 'all':
all_albums = self.GetFeaturedAlbums(featured)
for a in all_albums:
albums.append(a['title'])
else:
albums.append(album)
logging.info('Got albums %s' % str(albums))
for a in albums:
feed = self.ALBUM_FEED_URI % (self.user_id, a, thumb_size, self.imgmax)
logging.info('GetPhotosInAlbum feed is %s' % feed)
try:
photos_feed = self.gdata.GetFeed(feed)
for photo in photos_feed.entry:
pic = {
'id': photo.gphoto_id.text,
'height': photo.width.text,
'width': photo.height.text,
'thumb_url': photo.media.thumbnail[0].url,
'url': photo.media.content[0].url,
'name': photo.title.text,
}
photos.append(pic)
except:
pass
# set memcache
self.CacheSet(key, photos)
return photos
def CacheClear(self):
keys = []
albums = self.GetAllAlbums()
for a in albums:
keys.append("picasa_album_%s_%sc_%s" % (album['title'], self.thumb_size, self.imgmax))
keys.append("picasa_album_%s_%su_%s" % (album['title'], self.thumb_size, self.imgmax))
albums.append('picasa_albums')
memcache.delete_multi(keys)
class FlickrBackend(PhotoBackend):
flickr = None
def __init__(self, user):
PhotoBackend.__init__(self, user)
flickr.API_KEY = '36fbcb5322bdab1866dff9622f161400'
self.flickr = flickr.User(self.user_id)
def GetAllAlbums(self):
logging.info('GetAllAlbums called')
# check memcache
key = 'flickr_albums'
albums = self.CacheGet(key)
if albums:
return albums
albums = []
sets = self.flickr.getPhotosets()
for s in sets:
albums.append({
'id': s.id,
'title': s.title,
})
# set memcache
self.CacheSet(key, albums)
return albums
def GetPhotosInAlbum(self, album, featured=[]):
logging.info('GetPhotosInAlbum called')
if self.thumb_cropped:
thumb_size = "Square"
else:
thumb_size = "Thumbnail"
if self.imgmax < 600:
img_size = "Medium"
else:
img_size = "Large"
# check memcache
key = "album_%s_%s_%s" % (album, thumb_size, img_size)
photos = self.CacheGet(key)
if photos:
return photos
photos = []
sets = self.GetAllAlbums()
set_id = None
for s in sets:
if s['title'] == album:
set_id = s['id']
break
if not set_id:
return photos
logging.info('Found photoset %s with id %s' % (album, set_id))
photoset = flickr.Photoset(set_id, album, False)
for photo in photoset.getPhotos():
pic = {
'id': photo.id,
'height': 480,
'width': 640,
'thumb_url': photo.getURL(size=thumb_size, urlType='source'),
'url': photo.getURL(size=img_size, urlType='source'),
'name': photo.title,
}
photos.append(pic)
# set memcache
self.CacheSet(key, photos)
return photos
def CacheClear(self):
keys = []
albums = self.GetAllAlbums()
#for a in albums:
# keys.append("album_%s_%sc_%s" % (album['title'], self.thumb_size, self.imgmax))
# keys.append("album_%s_%su_%s" % (album['title'], self.thumb_size, self.imgmax))
#albums.append('albums')
#memcache.delete_multi(albums)
class UserPrefs(db.Model):
user = db.UserProperty(required=True)
photo_backend = db.IntegerProperty(choices=settings.PHOTO_BACKENDS, default=settings.PHOTO_BACKEND_PICASA, required=True)
site_title = db.StringProperty(default='photo')
site_header = db.StringProperty(default='photo')
thumb_size = db.IntegerProperty(choices=settings.THUMB_SIZES, default=settings.THUMB_SIZE_DEFAULT, required=True)
thumb_cropped = db.BooleanProperty(default=settings.THUMB_CROPPED_DEFAULT, required=True)
full_size = db.IntegerProperty(choices=settings.FULL_SIZES, default=settings.FULL_SIZE_DEFAULT, required=True)
homepage_size = db.IntegerProperty(choices=settings.FULL_SIZES, default=settings.HOMEPAGE_SIZE_DEFAULT, required=True)
homepage_album = db.StringProperty()
featured_albums = db.StringListProperty()
picasa_id = db.StringProperty(default='default')
flickr_id = db.StringProperty()
merchant_id = db.StringProperty()
analytics_id = db.StringProperty()
def GetUsername(self):
if self.photo_backend == settings.PHOTO_BACKEND_PICASA:
return self.picasa_id
elif self.photo_backend == settings.PHOTO_BACKEND_FLICKR:
return self.flickr_id
else:
return None
def SetUsername(self, user_id):
if self.photo_backend == settings.PHOTO_BACKEND_PICASA:
self.picasa_id = user_id
elif self.photo_backend == settings.PHOTO_BACKEND_FLICKR:
self.flickr_id = user_id
else:
return None
def GetPhotoBackend(self):
if self.photo_backend == settings.PHOTO_BACKEND_PICASA:
return PicasaBackend(self)
elif self.photo_backend == settings.PHOTO_BACKEND_FLICKR:
return FlickrBackend(self)
else:
return None