def save(self, force_insert=False, force_update=False, **kwargs):
"""Overrides models.Model.save.
- Generates slug.
- Saves image file.
"""
# prefill the slug with the ID, it requires double save
if not self.id:
if isinstance(self.image, UploadedFile):
# due to PIL has read several bytes from image, position in file has to be reset
self.image.seek(0)
super(Photo, self).save(force_insert, force_update)
self.width, self.height = get_image_dimensions(self.image.path)
self.slug = str(self.id) + '-' + self.slug
force_insert, force_update = False, True
image_changed = False
else:
old = Photo.objects.get(pk = self.pk)
image_changed = old.image != self.image
# rename image by slug
imageType = detect_img_type(self.image.path)
if imageType is not None:
self.image = file_rename(self.image.name, self.slug, PHOTOS_TYPE_EXTENSION[ imageType ])
# delete formatedphotos if new image was uploaded
if image_changed:
super(Photo, self).save(force_insert=force_insert, force_update=force_update, **kwargs)
self.width, self.height = get_image_dimensions(self.image.path)
force_insert, force_update = False, True
for f_photo in self.formatedphoto_set.all():
f_photo.delete()
super(Photo, self).save(force_insert=force_insert, force_update=force_update, **kwargs)
def thumb_url(self):
"""
Generates thumbnail for admin site and returns its url
"""
type = detect_img_type(self.image.path)
if not type:
return None
# cache thumbnail for future use to avoid hitting storage.exists() every time
# and to allow thumbnail detection after instance has been deleted
self.thumbnail_path = self.get_thumbnail_path()
if IMAGE_URL_PREFIX:
# custom URL prefix (debugging purposes)
return IMAGE_URL_PREFIX.rstrip('/') + '/' + self.thumbnail_path
storage = self.image.storage
if not storage.exists(self.thumbnail_path):
try:
im = Image.open(self.image.path)
im.thumbnail(PHOTOS_THUMB_DIMENSION, Image.ANTIALIAS)
im.save(storage.path(self.thumbnail_path), type)
except IOError:
# TODO Logging something wrong
return None
return storage.url(self.thumbnail_path)
def thumb_url(self):
"""
Generates thumbnail for admin site and returns its url
"""
# cache thumbnail for future use to avoid hitting storage.exists() every time
# and to allow thumbnail detection after instance has been deleted
self.thumbnail_path = self.get_thumbnail_path()
if photos_settings.IMAGE_URL_PREFIX and not path.exists(
self.image.path):
# custom URL prefix (debugging purposes)
return photos_settings.IMAGE_URL_PREFIX.rstrip(
'/') + '/' + self.thumbnail_path
type = detect_img_type(self.image.path)
if not type:
return None
storage = self.image.storage
if not storage.exists(self.thumbnail_path):
try:
im = Image.open(self.image.path)
im.thumbnail(photos_settings.THUMB_DIMENSION, Image.ANTIALIAS)
im.save(storage.path(self.thumbnail_path), type)
except IOError:
# TODO Logging something wrong
return None
return storage.url(self.thumbnail_path)
def save(self, force_insert=False, force_update=False, **kwargs):
"""Overrides models.Model.save.
- Generates slug.
- Saves image file.
"""
# prefill the slug with the ID, it requires double save
if not self.id:
if isinstance(self.image, UploadedFile):
# due to PIL has read several bytes from image, position in file has to be reset
self.image.seek(0)
# FIXME: better unique identifier, supercalifragilisticexpialidocious?
self.slug = ''
super(Photo, self).save(force_insert, force_update)
self.width, self.height = get_image_dimensions(self.image.path)
self.slug = str(self.id) + '-' + slugify(self.title)
# truncate slug in order to fit in an ImageField and/or paths in Redirects
self.slug = self.slug[:64]
force_insert, force_update = False, True
image_changed = False
else:
old = Photo.objects.get(pk=self.pk)
image_changed = old.image != self.image
# rename image by slug
imageType = detect_img_type(self.image.path)
if imageType is not None:
self.image = file_rename(self.image.name.encode('utf-8'),
self.slug,
photos_settings.TYPE_EXTENSION[imageType])
# delete formatedphotos if new image was uploaded
if image_changed:
super(Photo, self).save(force_insert=force_insert,
force_update=force_update,
**kwargs)
self.width, self.height = get_image_dimensions(self.image.path)
force_insert, force_update = False, True
for f_photo in self.formatedphoto_set.all():
f_photo.delete()
super(Photo, self).save(force_insert=force_insert,
force_update=force_update,
**kwargs)
def thumb_url(self):
"""
Generates thumbnail for admin site and returns its url
"""
type = detect_img_type(self.image.path)
if not type:
return None
# photos/2008/12/31/foo.jpg => photos/2008/12/31/thumb-foo.jpg
thumb_name = path.dirname(self.image.name) + "/" + 'thumb-%s' % path.basename(self.image.name)
storage = self.image.storage
if not storage.exists(thumb_name):
try:
im = Image.open(self.image.path)
im.thumbnail(PHOTOS_THUMB_DIMENSION, Image.ANTIALIAS)
im.save(storage.path(thumb_name), type)
except IOError:
# TODO Logging something wrong
return None
return storage.url(thumb_name)
def save(self, force_insert=False, force_update=False, **kwargs):
"""Overrides models.Model.save.
- Generates slug.
- Saves image file.
"""
# prefill the slug with the ID, it requires double save
if not self.id:
if isinstance(self.image, UploadedFile):
# due to PIL has read several bytes from image, position in file has to be reset
self.image.seek(0)
# FIXME: better unique identifier, supercalifragilisticexpialidocious?
self.slug = ''
super(Photo, self).save(force_insert, force_update)
self.width, self.height = get_image_dimensions(self.image.path)
self.slug = str(self.id) + '-' + slugify(self.title)
# truncate slug in order to fit in an ImageField and/or paths in Redirects
self.slug = self.slug[:64]
force_insert, force_update = False, True
image_changed = False
else:
old = Photo.objects.get(pk = self.pk)
image_changed = old.image != self.image
# rename image by slug
imageType = detect_img_type(self.image.path)
if imageType is not None:
self.image = file_rename(self.image.name.encode('utf-8'), self.slug, photos_settings.TYPE_EXTENSION[ imageType ])
# delete formatedphotos if new image was uploaded
if image_changed:
super(Photo, self).save(force_insert=force_insert, force_update=force_update, **kwargs)
self.width, self.height = get_image_dimensions(self.image.path)
force_insert, force_update = False, True
for f_photo in self.formatedphoto_set.all():
f_photo.delete()
super(Photo, self).save(force_insert=force_insert, force_update=force_update, **kwargs)
