49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
from __future__ import absolute_import
|
|
|
|
import logging
|
|
import datetime
|
|
|
|
from django.db import models, IntegrityError
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from documents.models import Document
|
|
|
|
from .managers import DocumentCheckoutManager
|
|
from .exceptions import DocumentAlreadyCheckedOut
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class DocumentCheckout(models.Model):
|
|
"""
|
|
Model to store the state and information of a document checkout
|
|
"""
|
|
document = models.ForeignKey(Document, verbose_name=_(u'document'), unique=True, editable=False)
|
|
checkout_datetime = models.DateTimeField(verbose_name=_(u'checkout date and time'), editable=False)
|
|
expiration_datetime = models.DateTimeField(verbose_name=_(u'checkout expiration date and time'))
|
|
block_new_version = models.BooleanField(verbose_name=_(u'block new version upload'), help_text=_(u'Do not allow new version of this document to be uploaded.'))
|
|
#block_metadata
|
|
#block_editing
|
|
#block tag add/remove
|
|
|
|
objects = DocumentCheckoutManager()
|
|
|
|
def __unicode__(self):
|
|
return unicode(self.document)
|
|
|
|
def save(self, *args, **kwargs):
|
|
if not self.pk:
|
|
self.checkout_date = datetime.datetime.now()
|
|
try:
|
|
return super(DocumentCheckout, self).save(*args, **kwargs)
|
|
except IntegrityError:
|
|
raise DocumentAlreadyCheckedOut
|
|
|
|
@models.permalink
|
|
def get_absolute_url(self):
|
|
return ('checkout_info', [self.document.pk])
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document checkout')
|
|
verbose_name_plural = _(u'document checkouts')
|