def _delete(self):
"""Remove image scale from database and filesystem.
"""
try:
delete_file(self.filesystem_path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
object_session(self).delete(self)
def delete(self):
"""Delete this image including all scales from the database and disk.
"""
self._delete_scales()
try:
delete_file(self.filesystem_path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
object_session(self).delete(self)
def _delete_scales(self):
"""Remove all existing image scales.
"""
session = object_session(self)
scales = session.query(ImageScale).filter(ImageScale.image_id == self.id)
for scale in scales:
try:
delete_file(scale.filesystem_path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
scales.delete()
def replace(self, data, filename=None):
"""Replace the image contents.
This method should be used to modify images. This method will
delete old old image scales and switch to a new filename and
URL.
:param str data: Raw image data.
:param str filename: Image filename (optional)
"""
self._delete_scales()
try:
delete_file(self.filesystem_path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
self._set_content(data, filename)
def delete(self, id):
""" Delete the object with the given ID.
:param id: ID of the file object
:type id: unicode
:result: Success
:rtype: bool
"""
# The kotti.events.ObjectDelete Event fires when the transaction is
# already committing. It is safe to use os.unlink
if transaction.get().status == "Committing":
os.unlink(self.path(id))
self.remove_base_directory(os.path.split(self.path(id=id))[0])
else:
# TODO: call remove_base_directory during transaction
delete_file(self.path(id))
def delete(self, id):
""" Delete the object with the given ID.
:param id: ID of the file object
:type id: unicode
:result: Success
:rtype: bool
"""
# The kotti.events.ObjectDelete Event fires when the transaction is
# already committing. It is safe to use os.unlink
if transaction.get().status == "Committing":
os.unlink(self.path(id))
self.remove_base_directory(os.path.split(self.path(id=id))[0])
else:
# TODO: call remove_base_directory during transaction
delete_file(self.path(id))
