1 """

     2 Django Extensions abstract base model classes.

     3 """

     4 

     5 from django.db import models

     6 from django.utils.translation import ugettext_lazy as _

     7 from django_extensions.db.fields import (ModificationDateTimeField,

     8                                          CreationDateTimeField, AutoSlugField)

     9 

    10 class TimeStampedModel(models.Model):

    11     """ TimeStampedModel

    12     An abstract base class model that provides self-managed "created" and

    13     "modified" fields.

    14     """

    15     created = CreationDateTimeField(_('created'))

    16     modified = ModificationDateTimeField(_('modified'))

    17 

    18     class Meta:

    19         abstract = True

    20 

    21 class TitleSlugDescriptionModel(models.Model):

    22     """ TitleSlugDescriptionModel

    23     An abstract base class model that provides title and description fields

    24     and a self-managed "slug" field that populates from the title.

    25     """

    26     title = models.CharField(_('title'), max_length=255)

    27     slug = AutoSlugField(_('slug'), populate_from='title')

    28     description = models.TextField(_('description'), blank=True, null=True)

    29 

    30     class Meta:

    31         abstract = True