def perform_create(self, serializer):
"""Download and validate image URL."""
imgs = []
for image_field, hash_field, suffix in self.image_fields:
if serializer.validated_data.get(image_field):
img_url = serializer.validated_data[image_field]
img, hash_ = image_from_url(img_url)
# Store img for `post_save` where we have access to the pk so
# we can save img in appropriate directory.
imgs.append((suffix, img, hash_))
serializer.validated_data[hash_field] = hash_
elif (
serializer.validated_data.get("type")
or (serializer.instance and getattr(serializer.instance, "type", None))
) == feed.COLLECTION_PROMO:
# Remove background images for promo collections.
serializer.validated_data[hash_field] = None
if image_field in serializer.validated_data:
del serializer.validated_data[image_field]
obj = serializer.save()
for suffix, image, hash_ in imgs:
if image:
i = Image.open(image)
path = obj.image_path(suffix)
with public_storage.open(path, "wb") as f:
i.save(f, "png")
pngcrush_image.delay(path, set_modified_on=[obj])
def perform_create(self, serializer):
"""Download and validate image URL."""
imgs = []
for image_field, hash_field, suffix in self.image_fields:
if serializer.validated_data.get(image_field):
img_url = serializer.validated_data[image_field]
img, hash_ = image_from_url(img_url)
# Store img for `post_save` where we have access to the pk so
# we can save img in appropriate directory.
imgs.append((suffix, img, hash_))
serializer.validated_data[hash_field] = hash_
elif ((serializer.validated_data.get('type')
or (serializer.instance
and getattr(serializer.instance, 'type',
None))) == feed.COLLECTION_PROMO):
# Remove background images for promo collections.
serializer.validated_data[hash_field] = None
if image_field in serializer.validated_data:
del serializer.validated_data[image_field]
obj = serializer.save()
for suffix, image, hash_ in imgs:
if image:
i = Image.open(image)
path = obj.image_path(suffix)
with public_storage.open(path, 'wb') as f:
i.save(f, 'png')
pngcrush_image.delay(path, set_modified_on=[obj])
def post_save(self, obj, created=True):
"""Store background image that we attached to the obj in pre_save."""
if hasattr(obj, '_background_image_upload'):
i = Image.open(obj._background_image_upload)
with storage.open(obj.image_path(), 'wb') as f:
i.save(f, 'png')
pngcrush_image.delay(obj.image_path(), set_modified_on=[obj])
return super(ImageURLUploadMixin, self).post_save(obj, created)
def post_save(self, obj, created=True):
"""Store image that we attached to the obj in pre_save."""
for image_field, hash_field, suffix in self.image_fields:
image = getattr(obj, '_%s' % image_field, None)
if image:
i = Image.open(image)
path = obj.image_path(suffix)
with storage.open(path, 'wb') as f:
i.save(f, 'png')
pngcrush_image.delay(path, set_modified_on=[obj])
return super(ImageURLUploadMixin, self).post_save(obj, created)
def post_save(self, obj, created=True):
"""Store image that we attached to the obj in pre_save."""
for image_field, hash_field, suffix in self.image_fields:
image = getattr(obj, '_%s' % image_field, None)
if image:
i = Image.open(image)
path = obj.image_path(suffix)
with public_storage.open(path, 'wb') as f:
i.save(f, 'png')
pngcrush_image.delay(path, set_modified_on=[obj])
return super(ImageURLUploadMixin, self).post_save(obj, created)
def update(self, request, *args, **kwargs):
obj = self.get_object()
try:
img, hash_ = DataURLImageField().from_native(request.read())
except ValidationError:
return Response(status=status.HTTP_400_BAD_REQUEST)
i = Image.open(img)
with storage.open(obj.image_path(self.image_suffix), 'wb') as f:
i.save(f, 'png')
# Store the hash of the original image data sent.
obj.update(**{self.hash_field: hash_})
pngcrush_image.delay(obj.image_path(self.image_suffix))
return Response(status=status.HTTP_204_NO_CONTENT)
def update(self, request, *args, **kwargs):
obj = self.get_object()
try:
img, hash_ = image_from_data_url(request.read())
except ValidationError:
return Response(status=status.HTTP_400_BAD_REQUEST)
i = Image.open(img)
with public_storage.open(obj.image_path(self.image_suffix), 'wb') as f:
i.save(f, 'png')
# Store the hash of the original image data sent.
obj.update(**{self.hash_field: hash_})
pngcrush_image.delay(obj.image_path(self.image_suffix))
return Response(status=status.HTTP_204_NO_CONTENT)
def _regenerate_icons_and_thumbnails(pk):
try:
webapp = Webapp.objects.get(pk=pk)
except Webapp.DoesNotExist:
_log(id, u'Webapp does not exist')
return
# Previews.
for preview in webapp.all_previews:
# Re-resize each preview by calling the task with the image that we
# have and asking the task to only deal with the thumbnail. We no
# longer have the original, but it's fine, the image should be large
# enough for us to generate a thumbnail.
resize_preview.delay(preview.image_path, preview, generate_image=False)
# Icons. The only thing we need to do is crush the 64x64 icon.
icon_path = os.path.join(webapp.get_icon_dir(), '%s-64.png' % webapp.id)
pngcrush_image.delay(icon_path)
def _regenerate_icons_and_thumbnails(pk):
try:
webapp = Webapp.objects.get(pk=pk)
except Webapp.DoesNotExist:
_log(id, u'Webapp does not exist')
return
# Previews.
for preview in webapp.all_previews:
# Re-resize each preview by calling the task with the image that we
# have and asking the task to only deal with the thumbnail. We no
# longer have the original, but it's fine, the image should be large
# enough for us to generate a thumbnail.
resize_preview.delay(preview.image_path, preview, generate_image=False)
# Icons. The only thing we need to do is crush the 64x64 icon.
icon_path = os.path.join(webapp.get_icon_dir(), '%s-64.png' % webapp.id)
pngcrush_image.delay(icon_path)