def create_from_raw(cls, img_data, name=None, caption=None, size=None):
# create the images.Image() object
image = images.Image(img_data)
# create the blob
blob = create_blob_from_image(image)
# need this for local. blob key, eventual consistency, issue.
if utils.is_local():
time.sleep(0.250)
# get the blob key
blob_key = files.blobstore.get_blob_key(blob)
# get a rough size
bytes_ = -1
if isinstance(size, int) and size > 0:
bytes_ = size
# return the img instance
return cls(
blob_key=blob_key,
url=images.get_serving_url(blob_key),
width=image.width,
height=image.height,
format=cls.get_format_string(image.format),
)
def make_cropped_copy(self, crop_args, format=None, quality=85):
cls = self.__class__
image = self.image
image.crop(*crop_args)
# create the image
new_image_data = image.execute_transforms(
output_encoding=format or cls.get_format_from_string(self.format), quality=quality
)
# create the blob
new_image = images.Image(new_image_data)
blob = create_blob_from_image(new_image)
blob_key = files.blobstore.get_blob_key(blob)
# need this for local. blob key, eventual consistency, issue.
if utils.is_local():
time.sleep(1)
return cls(
blob_key=blob_key,
url=images.get_serving_url(blob_key),
width=new_image.width,
height=new_image.height,
format=cls.get_format_string(new_image.format),
)
def log_exception(self, ex):
lines = ''.join(traceback.format_exception(*sys.exc_info()))
if isinstance(ex, urlfetch.DownloadError) or \
isinstance(ex, DeadlineExceededError) or \
isinstance(ex, taskqueue.TransientError):
utils.log.warn(lines)
else:
utils.log.error(lines)
if not utils.is_local() and not utils.is_debug():
mail.send_mail(
sender=u'*****@*****.**',
to=u'*****@*****.**',
subject=u'Caught Exception',
body=lines)