def __init__(self, relative_source, requested_size, opts=None,
quality=None, basedir=None, subdir=None, prefix=None):
# Set the absolute filename for the source file
source = self._absolute_path(relative_source)
quality = get_thumbnail_setting('QUALITY', quality)
imagemagick_path = get_thumbnail_setting('CONVERT')
wvps_path = get_thumbnail_setting('WVPS')
# Call super().__init__ now to set the opts attribute. generate() won't
# get called because we are not setting the dest attribute yet.
super(DjangoThumbnail, self).__init__(source, requested_size,
opts=opts, quality=quality, imagemagick_path=imagemagick_path,
wvps_path=wvps_path)
# Get the relative filename for the thumbnail image, then set the
# destination filename
relative_thumbnail = \
self._get_relative_thumbnail(relative_source, basedir=basedir,
subdir=subdir, prefix=prefix)
self.dest = self._absolute_path(relative_thumbnail)
# Call generate now that the dest attribute has been set
self.generate()
# Set the relative & absolute url to the thumbnail
self.relative_url = \
iri_to_uri('/'.join(relative_thumbnail.split(os.sep)))
self.absolute_url = '%s%s' % (settings.MEDIA_URL, self.relative_url)
def __init__(
self,
relative_source,
requested_size,
opts=None,
quality=None,
basedir=None,
subdir=None,
prefix=None,
relative_dest=None,
):
if not isinstance(relative_source, types.StringTypes):
# relative_source = relative_source.field.generate_filename(relative_source.instance, relative_source._name)
new_path = relative_source.storage.path(relative_source.name).replace(
os.path.abspath(settings.MEDIA_ROOT), ""
)
if new_path[0] == "/":
new_path = new_path[1:]
relative_source = new_path
# Set the absolute filename for the source file
source = self._absolute_path(relative_source)
quality = get_thumbnail_setting("QUALITY", quality)
imagemagick_path = get_thumbnail_setting("CONVERT")
wvps_path = get_thumbnail_setting("WVPS")
# Call super().__init__ now to set the opts attribute. generate() won't
# get called because we are not setting the dest attribute yet.
super(DjangoThumbnail, self).__init__(
source, requested_size, opts=opts, quality=quality, imagemagick_path=imagemagick_path, wvps_path=wvps_path
)
# Get the relative filename for the thumbnail image, then set the
# destination filename
if relative_dest is None:
self.relative_dest = self._get_relative_thumbnail(
relative_source, basedir=basedir, subdir=subdir, prefix=prefix
)
else:
self.relative_dest = relative_dest
self.dest = self._absolute_path(self.relative_dest)
# Call generate now that the dest attribute has been set
self.generate()
# Set the relative & absolute url to the thumbnail
self.relative_url = iri_to_uri("/".join(self.relative_dest.split(os.sep)))
self.absolute_url = "%s%s" % (settings.MEDIA_URL, self.relative_url)
def _get_relative_thumbnail(self, relative_source, basedir=None, subdir=None, prefix=None):
"""
Returns the thumbnail filename including relative path.
"""
basedir = get_thumbnail_setting("BASEDIR", basedir)
subdir = get_thumbnail_setting("SUBDIR", subdir)
prefix = get_thumbnail_setting("PREFIX", prefix)
path, filename = os.path.split(relative_source)
basename, ext = os.path.splitext(filename)
name = "%s%s" % (basename, ext.replace(".", "_"))
size = "%sx%s" % self.requested_size
opts_list = self.opts_list[:]
opts_list.append("")
opts = "_".join(opts_list)
thumbnail_filename = "%s%s_%s_%sq%s.jpg" % (prefix, name, size, opts, self.quality)
return os.path.join(basedir, path, subdir, thumbnail_filename)
