def execute_unless_deleted(db_object, partial_func):
if db_object.pk:
if exists_in_db(db_object):
partial_func()
else:
raise ObjectDeletedError("The object {0} has been deleted from the database. Aborting save.".format(db_object))
else:
# If the object doesn't have a primary key we assume that it being newly created and this safe to touch the database.
partial_func()
def _ensure_db_state(resultspackage):
if not exists_in_db(resultspackage):
raise ObjectDeletedError(
"The resultspackage has been deleted. Aborting and scheduling clean up of directory..."
)
if resultspackage.status == ResultsPackageStatus.CANCELLED:
raise PackageCancelledError(
"The resultspackage has been cancelled. Aborting and scheduling clean up of directory..."
)
def execute_unless_deleted(db_object, partial_func):
if db_object.pk:
if exists_in_db(db_object):
partial_func()
else:
raise ObjectDeletedError(
"The object {0} has been deleted from the database. Aborting save."
.format(db_object))
else:
# If the object doesn't have a primary key we assume that it being newly created and this safe to touch the database.
partial_func()
def ensure_compatible(page_object):
page_object = refetch_from_db(page_object)
filename = "compat_image.png"
image = PIL.Image.open(page_object.page_image.path).convert('RGB')
tmpdir = tempfile.mkdtemp()
image.save(os.path.join(tmpdir, filename))
compatible_image_path = os.path.join(page_object.image_path, filename)
f = open(os.path.join(tmpdir, filename), 'rb')
if exists_in_db(page_object):
page_object.compat_page_image.save(compatible_image_path, File(f))
else:
warnings.warn("The page was deleted from the database before it could be processed.")
f.close()
shutil.rmtree(tmpdir)
return page_object
def processed(dbobject):
dbobject = refetch_from_db(dbobject)
dbobject.processed = True
if exists_in_db(dbobject):
dbobject.save()
return dbobject
def _ensure_db_state(resultspackage):
if not exists_in_db(resultspackage):
raise ObjectDeletedError("The resultspackage has been deleted. Aborting and scheduling clean up of directory...")
if resultspackage.status == ResultsPackageStatus.CANCELLED:
raise PackageCancelledError("The resultspackage has been cancelled. Aborting and scheduling clean up of directory...")