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import os.path
import datetime
import random
from django.db import models
from django.utils.translation import ugettext_lazy as _
class Drink(models.Model):
"""Drink meta-model. Abstract class
* `name`: name of the beer, to be displayed.
* `slug`: prepopulated from `name`.
"""
name = models.CharField(_('name'), max_length=100)
slug = models.SlugField(_('slug'), max_length=100)
class Meta:
abstract = True
def __unicode__(self):
return self.name
def get_absolute_url(self):
return '/%s/' % self.slug
@property
def initial(self):
return self.name[0]
class Beer(Drink):
"""Beer model."""
class Meta:
verbose_name = _('beer')
verbose_name_plural = _('beers')
ordering = ('slug',)
def _picture(self):
return self.beerimage_set.order_by('?')[0]
picture = property(_picture)
class NotABeer(Drink):
"""Not-a-Beer model."""
class Meta:
verbose_name = _('drink')
verbose_name_plural = _('drinks')
ordering = ('slug',)
def get_absolute_url(self):
return '/%s/%s/' % ('notabeer', self.slug)
def _picture(self):
return self.notabeerimage_set.order_by('?')[0]
picture = property(_picture)
class DrinkImage(models.Model):
"""Drink image Meta-model.
* `credits`: text field where you can add meta information, credits, etc.
* `upload_date`: the date/time the beer has been uploaded.
"""
credits = models.TextField(_('credits'), blank=True)
upload_date = models.DateTimeField(_('upload date'),
default=datetime.datetime.now)
class Meta:
abstract = True
def _url(self):
return self.picture.url
url = property(_url)
class BeerImage(DrinkImage):
"""Beer image-related information
* `beer`: The linked beer.
* `picture`: image field (requires PIL module).
"""
beer = models.ForeignKey(Beer)
picture = models.ImageField(_('picture'), upload_to='beers/', blank=True)
class NotABeerImage(DrinkImage):
"""Image-related information for normal drinks
* `notabeer`: The linked drink.
* `picture`: image field (requires PIL module).
"""
notabeer = models.ForeignKey(NotABeer)
picture = models.ImageField(_('picture'), upload_to='notabeers/', blank=True)
# EOF
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