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Add bulk download support to the document app

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This commit is contained in:
Roberto Rosario
2012-01-04 02:09:30 -04:00
parent dfcf2b8b17
commit 3a517036d1
3 changed files with 68 additions and 23 deletions
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81
apps/documents/views.py
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@@ -13,6 +13,7 @@ from django.views.generic.list_detail import object_list
from django.core.urlresolvers import reverse
from django.utils.http import urlencode
from django.core.exceptions import PermissionDenied
from django.conf import settings
import sendfile
from common.utils import pretty_size, parse_range, urlquote, \
@@ -31,6 +32,7 @@ from permissions.models import Permission
from document_indexing.api import update_indexes, delete_indexes
from history.api import create_history
from acls.models import AccessEntry
from common.compressed_files import CompressedFile
from .conf.settings import (PREVIEW_SIZE, STORAGE_BACKEND, ZOOM_PERCENT_STEP,
ZOOM_MAX_LEVEL, ZOOM_MIN_LEVEL, ROTATION_STEP, PRINT_SIZE,
@@ -317,31 +319,72 @@ def get_document_image(request, document_id, size=PREVIEW_SIZE, base64_version=F
return sendfile.sendfile(request, document.get_image(size=size, page=page, zoom=zoom, rotation=rotation, version=version), mimetype=DEFAULT_FILE_FORMAT_MIMETYPE)
def document_download(request, document_id=None, document_version_pk=None):
if document_version_pk:
def document_download(request, document_id=None, document_id_list=None, document_version_pk=None):
document_version = None
documents = []
if document_id:
documents = [get_object_or_404(Document, pk=document_id)]
post_action_redirect = reverse('document_list')
elif document_id_list:
documents = [get_object_or_404(Document, pk=document_id) for document_id in document_id_list.split(',')]
elif document_version_pk:
document_version = get_object_or_404(DocumentVersion, pk=document_version_pk)
else:
document_version = get_object_or_404(Document, pk=document_id).latest_version
try:
Permission.objects.check_permissions(request.user, [PERMISSION_DOCUMENT_DOWNLOAD])
except PermissionDenied:
AccessEntry.objects.check_access(PERMISSION_DOCUMENT_DOWNLOAD, request.user, document_version.document)
try:
# Test permissions and trigger exception
fd = document_version.open()
fd.close()
return serve_file(
request,
document_version.file,
save_as=u'"%s"' % document_version.filename,
content_type=document_version.mimetype if document_version.mimetype else 'application/octet-stream'
)
except Exception, e:
messages.error(request, e)
return HttpResponseRedirect(request.META['HTTP_REFERER'])
documents = AccessEntry.objects.filter_objects_by_access(PERMISSION_DOCUMENT_DOWNLOAD, request.user, documents, exception_on_empty=True)
if len(documents) == 1:
document_version = documents[0].latest_version
if document_version:
try:
# Test permissions and trigger exception
fd = document_version.open()
fd.close()
return serve_file(
request,
document_version.file,
save_as=u'"%s"' % document_version.filename,
content_type=document_version.mimetype if document_version.mimetype else 'application/octet-stream'
)
except Exception, e:
if settings.DEBUG:
raise
else:
messages.error(request, e)
return HttpResponseRedirect(request.META['HTTP_REFERER'])
else:
try:
compressed_file = CompressedFile()
for document in documents:
descriptor = document.open()
compressed_file.add_file(descriptor, arcname=document.filename)
descriptor.close()
compressed_file.close()
return serve_file(
request,
compressed_file.as_file('document_bundle.zip'),
save_as=u'"document_bundle.zip"',
content_type='application/zip'
)
# TODO: DO a redirection afterwards
except Exception, e:
if settings.DEBUG:
raise
else:
messages.error(request, e)
return HttpResponseRedirect(request.META['HTTP_REFERER'])
def document_multiple_download(request):
return document_download(
request, document_id_list=request.GET.get('id_list', [])
)
def document_page_transformation_list(request, document_page_id):
document_page = get_object_or_404(DocumentPage, pk=document_page_id)