27 lines
778 B
Python
27 lines
778 B
Python
from __future__ import absolute_import
|
|
|
|
from django.db import models
|
|
|
|
from documents.models import Document
|
|
|
|
from .exceptions import DocumentNotCheckedOut
|
|
|
|
|
|
class DocumentCheckoutManager(models.Manager):
|
|
def checked_out(self):
|
|
return Document.objects.filter(pk__in=self.model.objects.all().values_list('pk', flat=True))
|
|
|
|
def is_document_checked_out(self, document):
|
|
if self.model.objects.filter(document=document):
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def check_in_document(self, document):
|
|
try:
|
|
document_checkout = self.model.objects.get(document=document)
|
|
except self.model.DoesNotExist:
|
|
raise DocumentNotCheckedOut
|
|
else:
|
|
document_checkout.delete()
|