X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0d0fa7a4cd45b477e40740a8d971ec814bc6a4a9..ed20fe9aabacabc81232e58bed2372124e538afa:/apps/sponsors/models.py diff --git a/apps/sponsors/models.py b/apps/sponsors/models.py index ffad8e774..c7ecc6f6b 100644 --- a/apps/sponsors/models.py +++ b/apps/sponsors/models.py @@ -1,13 +1,34 @@ +# -*- coding: utf-8 -*- +# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later. +# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. +# +import time +from StringIO import StringIO from django.db import models from django.utils.translation import ugettext_lazy as _ +from django.template.loader import render_to_string +from PIL import Image +from sorl.thumbnail.fields import ImageWithThumbnailsField +from sponsors.fields import JSONField +from django.core.files.base import ContentFile + +THUMB_WIDTH=120 +THUMB_HEIGHT=120 class Sponsor(models.Model): name = models.CharField(_('name'), max_length=120) _description = models.CharField(_('description'), blank=True, max_length=255) - logo = models.ImageField(_('logo'), upload_to='sponsors/sponsor/logo') + logo = ImageWithThumbnailsField( + _('logo'), + upload_to='sponsorzy/sponsor/logo', + thumbnail={ + 'size': (THUMB_WIDTH, THUMB_HEIGHT), + 'extension': 'png', + 'options': ['pad', 'detail'], + }) url = models.URLField(_('url'), blank=True, verify_exists=False) - + def __unicode__(self): return self.name @@ -18,18 +39,55 @@ class Sponsor(models.Model): return self.name -class SponsorGroup(models.Model): +class SponsorPage(models.Model): name = models.CharField(_('name'), max_length=120) - order = models.IntegerField(_('order'), default=0) - column_width = models.PositiveIntegerField(_('column width')) - sponsor_ids = models.CommaSeparatedIntegerField(_('sponsors'), max_length=255) - - def sponsors(self): - ids = [int(pk) for pk in self.sponsor_ids.split(',')] - result = Sponsor.objects.in_bulk(ids) - return [result[pk] for pk in ids] - sponsors.changes_data = False - + sponsors = JSONField(_('sponsors'), default={}) + _html = models.TextField(blank=True, editable=False) + sprite = models.ImageField(upload_to='sponsorzy/sprite', blank=True) + + def populated_sponsors(self): + result = [] + offset = 0 + for column in self.get_sponsors_value(): + result_group = {'name': column['name'], 'sponsors': []} + sponsor_objects = Sponsor.objects.in_bulk(column['sponsors']) + for sponsor_pk in column['sponsors']: + try: + result_group['sponsors'].append((offset, sponsor_objects[sponsor_pk])) + offset -= THUMB_HEIGHT + except KeyError: + pass + result.append(result_group) + return result + + def render_sprite(self): + sponsor_ids = [] + for column in self.get_sponsors_value(): + sponsor_ids.extend(column['sponsors']) + sponsors = Sponsor.objects.in_bulk(sponsor_ids) + sprite = Image.new('RGB', (THUMB_WIDTH, len(sponsors)*THUMB_HEIGHT)) + for i, sponsor_id in enumerate(sponsor_ids): + simg = Image.open(sponsors[sponsor_id].logo.thumbnail.dest) + sprite.paste(simg, (0, i*THUMB_HEIGHT)) + imgstr = StringIO() + sprite.save(imgstr, 'png') + + if self.sprite: + self.sprite.delete(save=False) + self.sprite.save('sponsorzy/sprite/%s-%d.png' % (self.name, time.time()), ContentFile(imgstr.getvalue()), save=False) + + def html(self): + return self._html + html = property(fget=html) + + def save(self, *args, **kwargs): + self.render_sprite() + self._html = render_to_string('sponsors/page.html', { + 'sponsors': self.populated_sponsors(), + 'page': self + }) + return super(SponsorPage, self).save(*args, **kwargs) + def __unicode__(self): return self.name