Files
mayan-edms/mayan/apps/sources/tasks.py
2015-07-15 01:03:57 -04:00

117 lines
5.0 KiB
Python

import logging
from django.contrib.auth.models import User
from django.db import OperationalError
from django.utils.translation import ugettext_lazy as _
from mayan.celery import app
from common.models import SharedUploadedFile
from converter.models import Transformation
from documents.models import DocumentType
from metadata.api import save_metadata_list
from .literals import DEFAULT_SOURCE_TASK_RETRY_DELAY
from .models import Source
logger = logging.getLogger(__name__)
@app.task(ignore_result=True)
def task_check_interval_source(source_id):
source = Source.objects.get_subclass(pk=source_id)
if source.enabled:
try:
source.check_source()
except Exception as exception:
logger.error('Error processing source: %s; %s', source, exception)
source.logs.create(message=_('Error processing source: %s') % exception)
else:
source.logs.all().delete()
@app.task(bind=True, default_retry_delay=DEFAULT_SOURCE_TASK_RETRY_DELAY, ignore_result=True)
def task_post_document_version_upload(self, source_id, document_version_id):
try:
source = Source.objects.get_subclass(pk=source_id)
document_version = DocumentVersion.objects.get(pk=document_version_id)
Transformation.objects.copy(source=Source.objects.get_subclass(pk=source_id), targets=document_version.pages.all())
except OperationalError as exception:
logger.warning('Operational error during post source document upload processing: %s. Retrying.', exception)
raise self.retry(exc=exception)
@app.task(bind=True, default_retry_delay=DEFAULT_SOURCE_TASK_RETRY_DELAY, ignore_result=True)
def task_upload_document(self, document_type_id, shared_uploaded_file_id, label=None, language=None, user_id=None, description=None, metadata_dict_list=None):
try:
shared_uploaded_file = SharedUploadedFile.objects.get(pk=shared_uploaded_file_id)
source = Source.objects.get_subclass(pk=source_id)
document_type = DocumentType.objects.get(pk=document_type_id)
if user_id:
user = User.objects.get(pk=user_id)
else:
user = None
if not label:
label = shared_uploaded_file.filename
with transaction.atomic():
document = DocumentVersion.objects.create(document_type=document_type)
document_version = document.new_document(
file_object=file_object, label=label, description=description,
language=language, _user=user
)
if metadata_dict_list:
save_metadata_list(metadata_dict_list, document, create=True)
task_post_source_document_version_upload.delay(source_id=source_id, document_version_id=document_version.pk, metadata_dict_list=metadata_dict_list)
except OperationalError as exception:
logger.warning('Operational error during attempt to handle source upload: %s. Retrying.', exception)
raise self.retry(exc=exception)
try:
shared_uploaded_file.delete()
except OperationalError as exception:
logger.warning('Operational error during attempt to delete shared upload file: %s; %s. Retrying.', shared_uploaded_file, exception)
@app.task(bind=True, default_retry_delay=DEFAULT_SOURCE_TASK_RETRY_DELAY, ignore_result=True)
def task_source_handle_upload(self, label, document_type_id, shared_uploaded_file_id, source_id, description=None, expand=False, language=None, metadata_dict_list=None, user_id=None):
try:
shared_uploaded_file = SharedUploadedFile.objects.get(pk=shared_uploaded_file_id)
source = Source.objects.get_subclass(pk=source_id)
document_type = DocumentType.objects.get(pk=document_type_id)
if user_id:
user = User.objects.get(pk=user_id)
else:
user = None
if not label:
label = shared_uploaded_file.filename
except OperationalError as exception:
logger.warning('Operational error during attempt to load data to handle source upload: %s. Retrying.', exception)
raise self.retry(exc=exception)
with shared_uploaded_file.open() as file_object:
source.handle_upload(description=description, document_type=document_type, expand=expand, file_object=file_object, label=label, language=language, metadata_dict_list=metadata_dict_list, user=user)
try:
shared_uploaded_file.delete()
except OperationalError as exception:
logger.warning('Operational error during attempt to delete shared upload file: %s; %s. Retrying.', shared_uploaded_file, exception)
# TODO: Report/record how was file uploaded
# if result['is_compressed'] is None:
# messages.success(request, _('File uploaded successfully.'))
# if result['is_compressed'] is True:
# messages.success(request, _('File uncompressed successfully and uploaded as individual files.'))
# if result['is_compressed'] is False:
# messages.warning(request, _('File was not a compressed file, uploaded as it was.'))