def set_hires_photo(self, filename):
'''
Checks file is an image and converts it to a small jpeg
DEPRECATED
'''
#Check this is a valid image
try:
path_and_filename = ''.join(
[settings.MEDIA_ROOT, 'profile_photos/', filename])
im = Image.open(path_and_filename)
im.verify()
#Open it again!
#http://stackoverflow.com/questions/12413649/python-image-library-attributeerror-nonetype-object-has-no-attribute-xxx
im = Image.open(path_and_filename).convert('RGB') #Convert to RGB
im.thumbnail((500, 500), Image.ANTIALIAS
) #Reasonble size to allow cropping down to 200x200
im.save(path_and_filename, "JPEG", quality=95)
self.photo = 'profile_photos/' + filename
upload_file_to_s3(self.photo)
except:
os.remove(path_and_filename)
raise Exception(
tran("Invalid image!")
) #Use tran here as it gets serialized so lazy tran fails
def crop_and_resize_photo(self, x, y, w, h):
'''
Crops the photo and produces a large and small thumbnail
'''
path_and_filename = ''.join([settings.MEDIA_ROOT, str(self.photo)])
im = Image.open(path_and_filename)
width, height=im.size
x = int(x)
y = int(y)
w = int(w)
h = int(h)
small_thumb_name = ''.join([create_hash(self.name), 'small_thumb', '.jpg'])
large_thumb_name = ''.join([create_hash(self.name), 'large_thumb', '.jpg'])
small_thumb = im.copy()
small_thumb.crop((x, y, x + w, y + h)
).resize((80,80), Image.ANTIALIAS
).save(''.join([settings.MEDIA_ROOT, 'profile_photos/', small_thumb_name]), "JPEG", quality=75)
self.small_thumbnail = 'profile_photos/' + small_thumb_name
large_thumb = im.copy()
large_thumb.crop((x, y, x + w, y + h)
).resize((200,200), Image.ANTIALIAS
).save(''.join([settings.MEDIA_ROOT, 'profile_photos/', large_thumb_name]), "JPEG", quality=75)
self.large_thumbnail = 'profile_photos/' + large_thumb_name
upload_file_to_s3(self.small_thumbnail)
upload_file_to_s3(self.large_thumbnail)
def upload_files_to_s3(self):
'''
Uploads image and thumbnail files to s3
'''
upload_file_to_s3(self.original_image)
upload_file_to_s3(self.thumbnail)
upload_file_to_s3(self.large_thumbnail)
def set_profile_image_crop_rotate_resize(self,
path_and_filename,
x,
y,
w,
h,
r,
test=False):
'''
sets the profile photo, supercedes set_hires_photo, crop_and_resize_photo, rotate_photo
'''
try:
media_path = Path(settings.MEDIA_ROOT)
path = Path(path_and_filename)
rel_path = Path(os.path.relpath(path, media_path))
small_thumb_path = Path(rel_path.parent, rel_path.stem +
'_small_thumb').with_suffix('.jpg')
large_thumb_path = Path(rel_path.parent, rel_path.stem +
'_large_thumb').with_suffix('.jpg')
im = Image.open(path)
im.verify()
#Open it again!
#https://pillow.readthedocs.io/en/3.0.x/reference/Image.html?highlight=verify#PIL.Image.Image.verify
im = Image.open(path)
im = im.convert('RGB')
if r != 0:
im = im.rotate(r, resample=Image.BICUBIC, expand=True)
im = im.crop((x, y, x + w, y + h))
# small thumbnail
small_thumb = im.copy()
small_thumb.thumbnail((80, 80), Image.ANTIALIAS)
small_thumb.save(media_path.joinpath(small_thumb_path),
"JPEG",
quality=75)
# large thumbnail
large_thumb = im.copy()
large_thumb.thumbnail((200, 200), Image.ANTIALIAS)
large_thumb.save(media_path.joinpath(large_thumb_path),
"JPEG",
quality=75)
old_photo = self.photo
old_small_thumbnail = self.small_thumbnail
old_large_thumbnail = self.large_thumbnail
# Set model properties
self.photo = str(rel_path)
self.small_thumbnail = str(small_thumb_path)
self.large_thumbnail = str(large_thumb_path)
upload_file_to_s3(self.photo)
upload_file_to_s3(self.small_thumbnail)
upload_file_to_s3(self.large_thumbnail)
# Remove old photos from S3
if old_photo:
old_photo_path = ''.join([settings.MEDIA_ROOT, str(old_photo)])
remove_file_from_s3(old_photo_path)
old_small_thumbnail_path = ''.join(
[settings.MEDIA_ROOT,
str(old_small_thumbnail)])
remove_file_from_s3(old_small_thumbnail_path)
old_large_thumbnail_path = ''.join(
[settings.MEDIA_ROOT,
str(old_large_thumbnail)])
remove_file_from_s3(old_large_thumbnail_path)
except:
raise Exception("Invalid image!")
finally:
# Need to check these images if testing
if not test:
self.remove_local_images()