def create_document_thumbnail(self, object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exit.".format(object_id))
return
image_path = None
if document.is_image():
image_path = document.doc_file.path
elif document.is_file():
try:
image_file = render_document(document.doc_file.path)
image_path = image_file.name
except ConversionError as e:
logger.debug("Could not convert document #{}: {}.".format(
object_id, e))
try:
if image_path:
assert isfile(image_path) and access(
image_path, R_OK) and os.stat(image_path).st_size > 0
except (AssertionError, TypeError):
image_path = None
if not image_path:
image_path = document.find_placeholder()
if not image_path or not os.path.exists(image_path):
logger.debug(
"Could not find placeholder for document #{}".format(object_id))
return
thumbnail_content = None
try:
thumbnail_content = generate_thumbnail_content(image_path)
except MissingPILError:
logger.error('Pillow not installed, could not generate thumbnail.')
return
if not thumbnail_content:
logger.warning("Thumbnail for document #{} empty.".format(object_id))
filename = 'document-{}-thumb.png'.format(document.uuid)
document.save_thumbnail(filename, thumbnail_content)
logger.debug("Thumbnail for document #{} created.".format(object_id))
def create_document_thumbnail(self, object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exit.".format(object_id))
return
image_path = None
if document.is_image():
image_path = document.doc_file.path
elif document.is_file():
try:
image_file = render_document(document.doc_file.path)
image_path = image_file.name
except ConversionError as e:
logger.debug("Could not convert document #{}: {}."
.format(object_id, e))
try:
if image_path:
assert isfile(image_path) and access(image_path, R_OK) and os.stat(image_path).st_size > 0
except (AssertionError, TypeError):
image_path = None
if not image_path:
image_path = document.find_placeholder()
if not image_path or not os.path.exists(image_path):
logger.debug("Could not find placeholder for document #{}"
.format(object_id))
return
thumbnail_content = None
try:
thumbnail_content = generate_thumbnail_content(image_path)
except MissingPILError:
logger.error('Pillow not installed, could not generate thumbnail.')
return
if not thumbnail_content:
logger.warning("Thumbnail for document #{} empty.".format(object_id))
filename = 'document-{}-thumb.png'.format(document.uuid)
document.save_thumbnail(filename, thumbnail_content)
logger.debug("Thumbnail for document #{} created.".format(object_id))
def create_document_thumbnail(self, object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exit.".format(object_id))
return
image_path = None
if document.is_image():
image_path = document.doc_file.path
elif document.is_file():
try:
image_file = render_document(document.doc_file.path)
image_path = image_file.name
except ConversionError as e:
logger.debug(
"Não foi possivel converte o documento #{}: {}.".format(
object_id, e))
if not image_path:
image_path = document.find_placeholder()
if not image_path:
logger.debug(
"Não foi possivel encontrar o espaco reservado para o documento #{}"
.format(object_id))
return
thumbnail_content = None
try:
thumbnail_content = generate_thumbnail_content(image_path)
except MissingPILError:
logger.error('Pillow not installed, could not generate thumbnail.')
return
if not thumbnail_content:
logger.warning("Thumbnail for document #{} empty.".format(object_id))
filename = 'document-{}-thumb.png'.format(document.uuid)
document.save_thumbnail(filename, thumbnail_content)
logger.debug("Thumbnail for document #{} created.".format(object_id))
def create_document_thumbnail(object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exit.".format(object_id))
return
image_path = None
if document.is_image():
image_path = document.doc_file.path
elif document.is_file():
try:
image_file = render_document(document.doc_file.path)
image_path = image_file.name
except ConversionError as e:
logger.debug("Could not convert document #{}: {}."
.format(object_id, e))
if not image_path:
image_path = document.find_placeholder()
if not image_path:
logger.debug("Could not find placeholder for document #{}"
.format(object_id))
return
try:
thumbnail_content = generate_thumbnail_content(image_path)
except MissingPILError:
logger.error('Pillow not installed, could not generate thumbnail.')
return
filename = 'document-{}-thumb.png'.format(document.uuid)
document.save_thumbnail(filename, thumbnail_content)
logger.debug("Thumbnail for document #{} created.".format(object_id))
def create_document_thumbnail(object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exit.".format(object_id))
return
image_path = None
if document.is_image():
image_path = document.doc_file.path
elif document.is_file():
try:
image_file = render_document(document.doc_file.path)
image_path = image_file.name
except ConversionError as e:
logger.debug("Could not convert document #{}: {}."
.format(object_id, e))
if not image_path:
image_path = document.find_placeholder()
if not image_path:
logger.debug("Could not find placeholder for document #{}"
.format(object_id))
return
try:
thumbnail_content = generate_thumbnail_content(image_path)
except MissingPILError:
logger.error('Pillow not installed, could not generate thumbnail.')
return
def create_document_thumbnail(self, object_id):
"""
Create thumbnail for a document.
"""
logger.debug("Generating thumbnail for document #{}.".format(object_id))
try:
document = Document.objects.get(id=object_id)
except Document.DoesNotExist:
logger.error("Document #{} does not exist.".format(object_id))
return
image_path = None
image_file = None
if document.is_image:
if not os.path.exists(storage.path(document.doc_file.name)):
from shutil import copyfile
copyfile(document.doc_file.path,
storage.path(document.doc_file.name))
image_file = storage.open(document.doc_file.name, 'rb')
elif document.is_video or document.is_audio:
image_file = open(document.find_placeholder(), 'rb')
elif document.is_file:
try:
document_location = storage.path(document.doc_file.name)
except NotImplementedError as e:
logger.debug(e)
document_location = storage.url(document.doc_file.name)
try:
image_path = render_document(document_location)
if image_path is not None:
try:
image_file = open(image_path, 'rb')
except Exception as e:
logger.debug(e)
logger.debug(
"Failed to render document #{}".format(object_id))
else:
logger.debug("Failed to render document #{}".format(object_id))
except ConversionError as e:
logger.debug("Could not convert document #{}: {}.".format(
object_id, e))
except NotImplementedError as e:
logger.debug("Failed to render document #{}: {}".format(
object_id, e))
thumbnail_content = None
try:
try:
thumbnail_content = generate_thumbnail_content(image_file)
except Exception as e:
logger.error(
"Could not generate thumbnail, falling back to 'placeholder': {}"
.format(e))
thumbnail_content = generate_thumbnail_content(
document.find_placeholder())
except Exception as e:
logger.error("Could not generate thumbnail: {}".format(e))
return
finally:
if image_file is not None:
image_file.close()
if image_path is not None:
os.remove(image_path)
if not thumbnail_content:
logger.warning("Thumbnail for document #{} empty.".format(object_id))
filename = 'document-{}-thumb.png'.format(document.uuid)
document.save_thumbnail(filename, thumbnail_content)
logger.debug("Thumbnail for document #{} created.".format(object_id))