def _process_content(self, filename, content):
img = open_image(content)
original_format = img.format
img = self.field.process(img, self)
# Determine the format.
format = self.field.format
if not format:
if callable(getattr(self.field, self.field._upload_to_attr)):
# The extension is explicit, so assume they want the matching format.
extension = os.path.splitext(filename)[1].lower()
# Try to guess the format from the extension.
try:
format = extension_to_format(extension)
except UnknownExtensionError:
pass
format = format or img.format or original_format or 'JPEG'
if format == 'JPEG':
img_to_fobj_kwargs = dict(quality=int(self.field.quality),
optimize=True)
else:
img_to_fobj_kwargs = {}
# Run the AutoConvert processor
if getattr(self.field, 'autoconvert', True):
autoconvert_processor = AutoConvert(format)
img = autoconvert_processor.process(img)
img_to_fobj_kwargs.update(autoconvert_processor.save_kwargs)
imgfile = img_to_fobj(img, format, **img_to_fobj_kwargs)
content = ContentFile(imgfile.read())
return img, content
def _process_content(self, filename, content):
img = open_image(content)
original_format = img.format
img = self.field.process(img, self)
# Determine the format.
format = self.field.format
if not format:
if callable(getattr(self.field, self.field._upload_to_attr)):
# The extension is explicit, so assume they want the matching format.
extension = os.path.splitext(filename)[1].lower()
# Try to guess the format from the extension.
try:
format = extension_to_format(extension)
except UnknownExtensionError:
pass
format = format or img.format or original_format or 'JPEG'
if format == 'JPEG':
img_to_fobj_kwargs = dict(quality=int(self.field.quality),
optimize=True)
else:
img_to_fobj_kwargs = {}
# Run the AutoConvert processor
if getattr(self.field, 'autoconvert', True):
autoconvert_processor = AutoConvert(format)
img = autoconvert_processor.process(img)
img_to_fobj_kwargs.update(autoconvert_processor.save_kwargs)
imgfile = img_to_fobj(img, format, **img_to_fobj_kwargs)
content = ContentFile(imgfile.read())
return img, content
def _process_content(self, filename, content):
img = open_image(content)
original_format = img.format
img = self.field.process(img, self)
# Determine the format.
format = self.field.format
if not format:
if callable(getattr(self.field, self.field._upload_to_attr)):
# The extension is explicit, so assume they want the matching format.
extension = os.path.splitext(filename)[1].lower()
# Try to guess the format from the extension.
try:
format = extension_to_format(extension)
except UnknownExtensionError:
pass
format = format or img.format or original_format or 'JPEG'
if format != 'JPEG':
imgfile = img_to_fobj(img, format)
else:
imgfile = img_to_fobj(img, format,
quality=int(self.field.quality),
optimize=True)
content = ContentFile(imgfile.read())
return img, content
def _get_suggested_extension(name, format):
original_extension = os.path.splitext(name)[1]
try:
suggested_extension = format_to_extension(format)
except UnknownFormatError:
extension = original_extension
else:
if suggested_extension.lower() == original_extension.lower():
extension = original_extension
else:
try:
original_format = extension_to_format(original_extension)
except UnknownExtensionError:
extension = suggested_extension
else:
# If the formats match, give precedence to the original extension.
if format.lower() == original_format.lower():
extension = original_extension
else:
extension = suggested_extension
return extension
def _get_suggested_extension(name, format):
original_extension = os.path.splitext(name)[1]
try:
suggested_extension = format_to_extension(format)
except UnknownFormatError:
extension = original_extension
else:
if suggested_extension.lower() == original_extension.lower():
extension = original_extension
else:
try:
original_format = extension_to_format(original_extension)
except UnknownExtensionError:
extension = suggested_extension
else:
# If the formats match, give precedence to the original extension.
if format.lower() == original_format.lower():
extension = original_extension
else:
extension = suggested_extension
return extension
def test_extension_to_format(self):
self.assertEqual(utils.extension_to_format('.jpeg'), 'JPEG')
self.assertEqual(utils.extension_to_format('.rgba'), 'SGI')
with self.assertRaises(utils.UnknownExtensionError):
utils.extension_to_format('.txt')
def test_extension_to_format(self):
self.assertEqual(utils.extension_to_format('.jpeg'), 'JPEG')
self.assertEqual(utils.extension_to_format('.rgba'), 'SGI')
with self.assertRaises(utils.UnknownExtensionError):
utils.extension_to_format('.txt')
def test_extension_to_format(self):
self.assertEqual(utils.extension_to_format(".jpeg"), "JPEG")
self.assertEqual(utils.extension_to_format(".rgba"), "SGI")
self.assertRaises(utils.UnknownExtensionError, lambda: utils.extension_to_format(".txt"))
