mamweb/seminar/models/novinky.py

from django.db import models
from imagekit.models import ImageSpecField
from imagekit.processors import ResizeToFit

from reversion import revisions as reversion

from personalni.models import Organizator

@reversion.register(ignore_duplicates=True)
class Novinky(models.Model):

	class Meta:
		verbose_name = 'Novinka'
		verbose_name_plural = 'Novinky'
		ordering = ['-datum']

	datum = models.DateField(auto_now_add=True)

	text = models.TextField('Text novinky', blank=True, null=True)
	obrazek = models.ImageField('Obrázek', upload_to='image_novinky/%Y/%m/%d/',
								null=True, blank=True)

	obrazek_maly = ImageSpecField(source='obrazek',
								  processors=[
									  ResizeToFit(350, 200, upscale=False)
								  ],
								  options={'quality': 95})

	autor = models.ForeignKey(Organizator, verbose_name='Autor novinky', null=True,
							  on_delete=models.SET_NULL)

	zverejneno = models.BooleanField('Zveřejněno', default=False)

	def __str__(self):
		if self.text:
			return '[' + str(self.datum) + '] ' + self.text[0:50]
		else:
			return '[' + str(self.datum) + '] '