74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
from __future__ import absolute_import
|
|
|
|
from django.utils.translation import ugettext_lazy as _
|
|
from django.db.models import Avg, Count, Min, Max
|
|
|
|
from common.utils import pretty_size, pretty_size_10
|
|
|
|
from .conf.settings import STORAGE_BACKEND
|
|
from .models import Document, DocumentType, DocumentPage, DocumentVersion
|
|
|
|
|
|
def get_used_size(path, file_list):
|
|
total_size = 0
|
|
for filename in file_list:
|
|
try:
|
|
total_size += STORAGE_BACKEND().size(STORAGE_BACKEND.separator.join([path, filename]))
|
|
except OSError:
|
|
pass
|
|
|
|
return total_size
|
|
|
|
|
|
def storage_count(path=u'.'):
|
|
try:
|
|
directories, files = STORAGE_BACKEND().listdir(path)
|
|
except OSError:
|
|
return 0, 0
|
|
else:
|
|
total_count = len(files)
|
|
total_size = get_used_size(path, files)
|
|
|
|
for directory in directories:
|
|
file_count, files_size = storage_count(directory)
|
|
total_count += file_count
|
|
total_size += files_size
|
|
|
|
return total_count, total_size
|
|
|
|
|
|
def get_statistics():
|
|
total_db_documents = Document.objects.only('pk',).count()
|
|
|
|
paragraphs = [
|
|
_(u'Document types: %d') % DocumentType.objects.count(),
|
|
_(u'Documents in database: %d') % total_db_documents,
|
|
]
|
|
|
|
try:
|
|
total_storage_documents, storage_used_space = storage_count()
|
|
paragraphs.append(_(u'Documents in storage: %d') %
|
|
total_storage_documents)
|
|
paragraphs.append(_(u'Space used in storage: %(base_2)s (base 2), %(base_10)s (base 10), %(bytes)d bytes') % {
|
|
'base_2': pretty_size(storage_used_space),
|
|
'base_10': pretty_size_10(storage_used_space),
|
|
'bytes': storage_used_space
|
|
})
|
|
except NotImplementedError:
|
|
pass
|
|
|
|
document_stats = DocumentVersion.objects.annotate(page_count=Count('pages')).aggregate(Min('page_count'), Max('page_count'), Avg('page_count'))
|
|
paragraphs.extend(
|
|
[
|
|
_(u'Document pages in database: %d') % DocumentPage.objects.only('pk',).count(),
|
|
_(u'Minimum amount of pages per document: %d') % (document_stats['page_count__min'] or 0),
|
|
_(u'Maximum amount of pages per document: %d') % (document_stats['page_count__max'] or 0),
|
|
_(u'Average amount of pages per document: %f') % (document_stats['page_count__avg'] or 0),
|
|
]
|
|
)
|
|
|
|
return {
|
|
'title': _(u'Document statistics'),
|
|
'paragraphs': paragraphs
|
|
}
|