1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54 | """
Django Extensions abstract base model classes.
"""
import datetime
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django_extensions.db.fields import (ModificationDateTimeField,
CreationDateTimeField, AutoSlugField)
class TimeStampedModel(models.Model):
""" TimeStampedModel
An abstract base class model that provides self-managed "created" and
"modified" fields.
"""
created = CreationDateTimeField(_('created'))
modified = ModificationDateTimeField(_('modified'))
class Meta:
abstract = True
class TitleSlugDescriptionModel(models.Model):
""" TitleSlugDescriptionModel
An abstract base class model that provides title and description fields
and a self-managed "slug" field that populates from the title.
"""
title = models.CharField(_('title'), max_length=255)
slug = AutoSlugField(_('slug'), populate_from='title')
description = models.TextField(_('description'), blank=True, null=True)
class Meta:
abstract = True
class ActivatorModel(models.Model):
""" ActivatorModel
An abstract base class model that provides activate and deactivate fields.
"""
STATUS_CHOICES = (
(0, _('Inactive')),
(1, _('Active')),
)
status = models.IntegerField(_('status'), choices=STATUS_CHOICES,
default=1)
activate_date = models.DateTimeField(blank=True, null=True,
help_text=_('keep empty for an immediate activation'))
deactivate_date = models.DateTimeField(blank=True, null=True,
help_text=_('keep empty for indefinite activation'))
class Meta:
abstract = True
def save(self, *args, **kwargs):
if not self.activate_date:
self.activate_date = datetime.datetime.now()
super(ActivatorModel, self).save(*args, **kwargs)
|
