# -*- coding: utf-8 -*- # vi:si:et:sw=4:sts=4:ts=4 from __future__ import division, with_statement from datetime import datetime import os.path import math import random import re import subprocess from glob import glob from django.db import models from django.db.models import Q from django.contrib.auth.models import User from django.core.files.base import ContentFile from django.utils import simplejson as json from django.conf import settings from oxdjango import fields import ox from ox import stripTags from ox.normalize import canonicalTitle, canonicalName from firefogg import Firefogg import managers import load import utils from archive import extract def getItem(info): ''' info dict with: imdbId, title, director, episode_title, season, series ''' if 'imdbId' in info and info['imdbId']: try: item = Item.objects.get(itemId=info['imdbId']) except Item.DoesNotExist: item = Item(itemId=info['imdbId']) if 'title' in info and 'directors' in info: item.imdb = { 'title': info['title'], 'directors': info['directors'], 'year': info.get('year', '') } #FIXME: this should be done async #item.save() #tasks.updateImdb.delay(item.itemId) item.updateImdb() else: q = Item.objects.filter(find__title=info['title']) if q.count() > 1: print "FIXME: check more than title here!!?" item = q[0] else: try: item = Item.objects.get(itemId=info['oxdbId']) except Item.DoesNotExist: item = Item() item.metadata = { 'title': info['title'], 'directors': info['directors'], 'year': info.get('year', '') } item.itemId = info['oxdbId'] for key in ('episode_title', 'series_title', 'season', 'episode'): if key in info and info[key]: item.metadata[key] = info[key] item.save() return item class Item(models.Model): person_keys = ('director', 'writer', 'producer', 'editor', 'cinematographer', 'actor', 'character') facet_keys = person_keys + ('country', 'language', 'genre', 'keyword') created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) published = models.DateTimeField(default=datetime.now, editable=False) #only items that have metadata from files are available, #this is indicated by setting available to True available = models.BooleanField(default=False, db_index=True) itemId = models.CharField(max_length=128, unique=True, blank=True) oxdbId = models.CharField(max_length=42, unique=True, blank=True) objects = managers.ItemManager() def get(self, key, default=None): if self.metadata and key in self.metadata: return self.metadata[key] if self.imdb and key in self.imdb: return self.imdb[key] return default def editable(self, user): #FIXME: make permissions work return False def edit(self, data): #FIXME: how to map the keys to the right place to write them to? for key in data: if key != 'id': setattr(self.metadata, key, data[key]) self.oxdb.save() self.save() def reviews(self): reviews = self.get('reviews', []) whitelist = [w for w in ReviewWhitelist.objects.all()] _reviews = {} for r in reviews: for w in whitelist: if w.url in r[0]: _reviews[w.title] = r[0] return _reviews imdb = fields.DictField(default={}, editable=False) metadata = fields.DictField(default={}, editable=False) json = fields.DictField(default={}, editable=False) def updateImdb(self): if len(self.itemId) == 7: self.imdb = ox.web.imdb.Imdb(self.itemId) self.save() poster = models.ImageField(default=None, blank=True, upload_to=lambda m, x: os.path.join(itemid_path(m.itemId), "poster.jpg")) poster_url = models.TextField(blank=True) poster_height = models.IntegerField(default=0) poster_width = models.IntegerField(default=0) poster_frame = models.FloatField(default=-1) #stream related fields stream_aspect = models.FloatField(default=4/3) def __unicode__(self): year = self.get('year') if year: return u'%s (%s)' % (self.get('title'), self.get('year')) return self.get('title') def get_absolute_url(self): return '/timeline#%s' % self.itemId def save(self, *args, **kwargs): self.json = self.get_json() if not self.oxdbId: self.oxdbId = self.oxid() if self.poster: self.poster_height = self.poster.height self.poster_width = self.poster.width else: self.poster_height = 128 self.poster_width = 80 super(Item, self).save(*args, **kwargs) self.updateFind() self.updateSort() self.updateFacets() def delete(self, *args, **kwargs): self.delete_poster() for f in glob("%s*"%self.timeline_prefix): os.unlink(f) for f in glob("%sstrip*"%self.timeline_prefix[:-8]): os.unlink(f) super(Item, self).delete(*args, **kwargs) def mergeWith(self, other): ''' move all related tables to other and delete self ''' for stream in self.streams.all(): stream.item = other stream.save() for l in self.lists.all(): l.items.remove(self) if l.items.filter(id=other.id) == 0: l.items.add(other) #FIXME: should this really happen for layers? for l in self.layer.all(): l.items.remove(self) if l.items.filter(id=other.id) == 0: l.items.add(other) if hasattr(self, 'files'): for f in self.files.all(): f.item = other f.save() self.delete() other.save() ''' JSON cache related functions ''' _public_fields = { 'itemId': 'id', 'title': 'title', 'year': 'year', 'runtime': 'runtime', 'release_date': 'release_date', 'countries': 'country', 'directors': 'director', 'writers': 'writer', 'editors': 'editor', 'producers': 'producer', 'cinematographer': 'cinematographer', 'languages': 'language', 'genres': 'genre', 'keywords': 'keyword', 'cast': 'cast', 'series_title': 'series_title', 'episode_title': 'episode_title', 'season': 'season', 'episode': 'episode', 'reviews': 'reviews', 'trivia': 'trivia', 'rating': 'rating', 'votes': 'votes', 'alternative_titles': 'alternative_titles', 'connections_json': 'connections', } def get_poster(self): poster = {} poster['width'] = self.poster_width poster['height'] = self.poster_height poster['url'] = '/%s/poster.jpg' % self.itemId ''' if self.poster: poster['url'] = self.poster.url else: poster['url'] = self.poster_url ''' return poster def get_posters(self): posters = {} for p in self.poster_urls.all(): if p.service not in posters: posters[p.service] = [] posters[p.service].append({'url': p.url, 'width': p.width, 'height': p.height}) local_posters = self.local_posters().keys() if local_posters: posters['local'] = [] for p in local_posters: url = p.replace(settings.MEDIA_ROOT, settings.MEDIA_URL) width = 640 height = 1024 posters['local'].append({'url': url, 'width': width, 'height': height}) return posters def get_stream(self): stream = {} if self.streams.all().count(): s = self.streams.all()[0] if s.video and s.info: stream['duration'] = s.info['duration'] if 'video' in s.info and s.info['video']: stream['aspectRatio'] = s.info['video'][0]['width'] / s.info['video'][0]['height'] if settings.XSENDFILE or settings.XACCELREDIRECT: stream['baseUrl'] = '/%s' % self.itemId else: stream['baseUrl'] = os.path.dirname(s.video.url) stream['profiles'] = list(set(map(lambda s: int(os.path.splitext(s['profile'])[0][:-1]), self.streams.all().values('profile')))) return stream def get_layers(self): layers = {} layers['cuts'] = self.metadata.get('cuts', {}) layers['subtitles'] = {} #FIXME: subtitles should be stored in Layer qs = self.files.filter(is_subtitle=True, is_main=True, available=True) if qs.count()>0: layers['subtitles'] = qs[0].srt() return layers def get_json(self, fields=None): item = {} for key in self._public_fields: pub_key = self._public_fields.get(key, key) if not fields or pub_key in fields: if hasattr(self, key): value = getattr(self, key) else: value = self.get(key) if callable(value): item[pub_key] = value() else: item[pub_key] = value if not fields: item['stream'] = self.get_stream() item['poster'] = self.get_poster() item['posters'] = self.get_posters() if fields: for f in fields: if f.endswith('.length') and f[:-7] in ('cast', 'genre', 'trivia'): item[f] = getattr(self.sort, f[:-7]) return item def fields(self): fields = {} for f in self._meta.fields: if f.name in self._public_fields: fields[f.name] = {} fields[f.name]['order'] = 'desc' fields[f.name]['type'] = type(f) return fields fields = classmethod(fields) def oxid(self): return utils.oxid(self.get('title', ''), self.get('directors', []), str(self.get('year', '')), self.get('series title', ''), self.get('episode title', ''), self.get('season', ''), self.get('episode', '')) ''' Search related functions ''' def updateFind(self): def save(key, value): f, created = ItemFind.objects.get_or_create(item=self, key=key) if value not in ('', '||'): f.value = value f.save() else: f.delete() save('title', '\n'.join([self.get('title'), self.get('original_title', '')])) #FIXME: filter us/int title #f.title += ' '.join([t.title for t in self.alternative_titles()]) save('year', self.get('year', '')) for key in self.facet_keys: if key == 'actor': values = [i[0] for i in self.get('actor', [])] elif key == 'character': values = [i[1] for i in self.get('actor', [])] else: values = self.get(utils.plural_key(key), []) save(key, '|%s|'%'|'.join(values)) save('summary', self.get('plot', '') + self.get('plot_outline', '')) save('trivia', ' '.join(self.get('trivia', []))) save('location', '|%s|'%'|'.join(self.get('filming_locations', []))) #FIXME: #f.dialog = 'fixme' save('dialog', '\n'.join([l.value for l in Layer.objects.filter(type='subtitle', item=self).order_by('start')])) #FIXME: collate filenames #f.filename = self.filename all_find = ' '.join([f.value for f in ItemFind.objects.filter(item=self).exclude(key='all')]) save('all', all_find) def updateSort(self): try: s = self.sort except ItemSort.DoesNotExist: s = ItemSort(item=self) def sortNames(values): sort_value = '' if values: sort_value = '; '.join([getPersonSort(name) for name in values]) if not sort_value: sort_value = '' return sort_value #title title = canonicalTitle(self.get('title')) s.title = utils.sort_title(title) s.country = ','.join(self.get('countries', [])) s.year = self.get('year', '') for key in self.person_keys: setattr(s, key, sortNames(self.get(utils.plural_key(key), []))) for key in ('language', 'country'): setattr(s, key, ','.join(self.get(utils.plural_key(key), []))) s.runtime = self.get('runtime', 0) for key in ('keywords', 'genres', 'cast', 'summary', 'trivia', 'connections'): setattr(s, key, len(self.get(key, ''))) s.itemId = self.itemId.replace('0x', 'xx') s.rating = self.get('rating', -1) s.votes = self.get('votes', -1) # data from related subtitles s.scenes = 0 #FIXME s.dialog = 0 #FIXME s.words = 0 #FIXME s.wpm = 0 #FIXME s.risk = 0 #FIXME # data from related files s.duration = 0 #FIXME s.resolution = 0 #FIXME s.aspectratio = 0 #FIXME s.bitrate = 0 #FIXME s.pixels = 0 #FIXME s.filename = 0 #FIXME s.files = 0 #FIXME s.size = 0 #FIXME for key in ('title', 'language', 'country') + self.person_keys: setattr(s, '%s_desc'%key, getattr(s, key)) if not getattr(s, key): setattr(s, key, u'zzzzzzzzzzzzzzzzzzzzzzzzz') if not s.year: s.year_desc = ''; s.year = '9999'; #FIXME: also deal with number based rows like genre, keywords etc s.save() def updateFacets(self): #FIXME: what to do with Unkown Director, Year, Country etc. for key in self.facet_keys: if key == 'actor': current_values = [i[0] for i in self.get('actor', [])] elif key == 'character': current_values = [i[1] for i in self.get('actor', [])] else: current_values = self.get(utils.plural_key(key), []) saved_values = [i.value for i in Facet.objects.filter(item=self, key=key)] removed_values = filter(lambda x: x not in current_values, saved_values) if removed_values: Facet.objects.filter(item=self, key=key, value__in=removed_values).delete() for value in current_values: if value not in saved_values: value_sort = value if key in self.person_keys: value_sort = getPersonSort(value) f = Facet(key=key, value=value, value_sort=value_sort) f.item = self f.save() year = self.get('year', None) if year: f, created = Facet.objects.get_or_create(key='year', value=year, value_sort=year, item=self) else: Facet.objects.filter(item=self, key='year').delete() ''' Video related functions ''' def frame(self, position, width=128): stream = self.streams.filter(profile=settings.VIDEO_PROFILE+'.webm')[0] path = os.path.join(settings.MEDIA_ROOT, itemid_path(self.itemId), 'frames', "%d"%width, "%s.jpg"%position) if not os.path.exists(path): extract.frame(stream.video.path, path, position, width) return path @property def timeline_prefix(self): return os.path.join(settings.MEDIA_ROOT, itemid_path(self.itemId), 'timeline') def main_videos(self): #FIXME: needs to check if more than one user has main files and only take from "higher" user return self.files.filter(is_main=True, is_video=True, available=True) def updateStreams(self): files = {} for f in self.main_videos(): files[utils.sort_title(f.name)] = f.video.path #FIXME: how to detect if something changed? if files: stream, created = Stream.objects.get_or_create(item=self, profile='%s.webm' % settings.VIDEO_PROFILE) stream.video.name = stream_path(stream) cmd = [] for f in sorted(files): cmd.append('+') cmd.append(files[f]) if not os.path.exists(os.path.dirname(stream.video.path)): os.makedirs(os.path.dirname(stream.video.path)) cmd = [ 'mkvmerge', '-o', stream.video.path ] + cmd[1:] p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) p.wait() stream.save() if 'video' in stream.info: extract.timeline(stream.video.path, self.timeline_prefix) self.stream_aspect = stream.info['video'][0]['width']/stream.info['video'][0]['height'] self.metadata['cuts'] = extract.cuts(self.timeline_prefix) self.metadata['average_color'] = extract.average_color(self.timeline_prefix) #extract.timeline_strip(self, self.metadata['cuts'], stream.info, self.timeline_prefix[:-8]) stream.extract_derivatives() #something with poster self.available = True self.save() ''' Poster related functions ''' def update_poster_urls(self): _current = {} for s in settings.POSTER_SERVICES: url = '%s?itemId=%s'%(s, self.itemId) try: data = json.loads(ox.net.readUrlUnicode(url)) except: continue for service in data: if service not in _current: _current[service] = [] for poster in data[service]: _current[service].append(poster) #FIXME: remove urls that are no longer listed for service in _current: for poster in _current[service]: p, created = PosterUrl.objects.get_or_create(item=self, url=poster['url'], service=service) if created: p.width = poster['width'] p.height = poster['height'] p.save() def delete_poster(self): if self.poster: path = self.poster.path self.poster.delete() for f in glob(path.replace('.jpg', '*.jpg')): os.unlink(f) def prefered_poster_url(self): if self.poster_url: return self.poster_url self.update_poster_urls() for service in settings.POSTER_PRECEDENCE: for u in self.poster_urls.filter(service=service).order_by('-height'): return u.url return None def download_poster(self, force=False): if not self.poster or force: url = self.prefered_poster_url() if url: data = ox.net.readUrl(url) if force: self.delete_poster() self.poster.save('poster.jpg', ContentFile(data)) self.save() else: if force: self.delete_poster() local_posters = self.make_local_posters() if local_posters: with open(local_posters[0]) as f: self.poster.save('poster.jpg', ContentFile(f.read())) def local_posters(self): part = 1 posters = {} for f in self.main_videos(): for frame in f.frames.all(): path = os.path.join(itemid_path(self.itemId), 'poster.pandora.%s.%s.jpg'%(part, frame.position)) path = os.path.abspath(os.path.join(settings.MEDIA_ROOT, path)) posters[path] = frame.frame.path part += 1 return posters def make_local_posters(self): posters = self.local_posters() for poster in posters: frame = posters[poster] cmd = [settings.ITEM_POSTER, '-t', self.get('title'), '-d', ', '.join(self.get('directors', ['Unknown Director'])), '-f', frame, '-p', poster ] if len(self.itemId) == 7: cmd += ['-i', self.itemId] cmd += ['-o', self.oxdbId] p = subprocess.Popen(cmd) p.wait() return posters.keys() class ItemFind(models.Model): """ used to find items, item.updateFind populates this table its used in manager.ItemManager """ class Meta: unique_together = ("item", "key") item = models.ForeignKey('Item', related_name='find', db_index=True) key = models.CharField(max_length=200, db_index=True) value = models.TextField(blank=True) class ItemSort(models.Model): """ used to sort items, all sort values are in here """ item = models.OneToOneField('Item', related_name='sort', primary_key=True) title = models.CharField(max_length=1000, db_index=True) director = models.TextField(blank=True, db_index=True) country = models.TextField(blank=True, db_index=True) year = models.CharField(max_length=4, db_index=True) producer = models.TextField(blank=True, db_index=True) writer = models.TextField(blank=True, db_index=True) editor = models.TextField(blank=True, db_index=True) cinematographer = models.TextField(blank=True, db_index=True) language = models.TextField(blank=True, db_index=True) runtime = models.IntegerField(blank=True, null=True, db_index=True) keywords = models.IntegerField(blank=True, db_index=True) genre = models.TextField(blank=True, db_index=True) cast = models.IntegerField(blank=True, db_index=True) summary = models.IntegerField(blank=True, db_index=True) trivia = models.IntegerField(blank=True, db_index=True) connections = models.IntegerField(blank=True, db_index=True) rating = models.FloatField(blank=True, db_index=True) votes = models.IntegerField(blank=True, db_index=True) scenes = models.IntegerField(blank=True, db_index=True) dialog = models.IntegerField(null=True, blank=True, db_index=True) words = models.IntegerField(null=True, blank=True, db_index=True) wpm = models.IntegerField('Words per Minute', null=True, blank=True, db_index=True) risk = models.IntegerField(null=True, blank=True, db_index=True) itemId = models.CharField('ID', max_length=128, blank=True, db_index=True) duration = models.FloatField(default=-1, db_index=True) resolution = models.IntegerField(blank=True, db_index=True) aspectratio = models.IntegerField('Aspect Ratio', blank=True, db_index=True) bitrate = models.IntegerField(blank=True, db_index=True) pixels = models.BigIntegerField(blank=True, db_index=True) filename = models.IntegerField(blank=True, db_index=True) files = models.IntegerField(blank=True, db_index=True) size = models.BigIntegerField(blank=True, db_index=True) #required to move empty values to the bottom for both asc and desc sort title_desc = models.CharField(max_length=1000, db_index=True) director_desc = models.TextField(blank=True, db_index=True) country_desc = models.TextField(blank=True, db_index=True) year_desc = models.CharField(max_length=4, db_index=True) producer_desc = models.TextField(blank=True, db_index=True) writer_desc = models.TextField(blank=True, db_index=True) editor_desc = models.TextField(blank=True, db_index=True) cinematographer_desc = models.TextField(blank=True, db_index=True) language_desc = models.TextField(blank=True, db_index=True) _private_fields = ('id', 'item') #return available sort fields #FIXME: should return mapping name -> verbose_name def fields(self): fields = [] for f in self._meta.fields: if f.name not in self._private_fields: name = f.verbose_name name = name[0].capitalize() + name[1:] fields.append(name) return tuple(fields) fields = classmethod(fields) class Facet(models.Model): item = models.ForeignKey('Item', related_name='facets') key = models.CharField(max_length=200, db_index=True) value = models.CharField(max_length=200) value_sort = models.CharField(max_length=200) def save(self, *args, **kwargs): if not self.value_sort: self.value_sort = self.value super(Facet, self).save(*args, **kwargs) def getPersonSort(name): person, created = Person.objects.get_or_create(name=name) name_sort = person.name_sort.replace(u'\xc5k', 'A') return name_sort class Person(models.Model): name = models.CharField(max_length=200) imdbId = models.CharField(max_length=7, blank=True) name_sort = models.CharField(max_length=200) class Meta: ordering = ('name_sort', ) def __unicode__(self): return self.name def save(self, *args, **kwargs): if not self.name_sort: self.name_sort = ox.normalize.canonicalName(self.name) super(Person, self).save(*args, **kwargs) def get_or_create(model, name, imdbId=None): if imdbId: q = model.objects.filter(name=name, imdbId=imdbId) else: q = model.objects.all().filter(name=name) if q.count() > 0: o = q[0] else: o = model.objects.create(name=name) if imdbId: o.imdbId = imdbId o.save() return o get_or_create = classmethod(get_or_create) def json(self): return self.name class Location(models.Model): name = models.CharField(max_length=200, unique=True) manual = models.BooleanField(default=False) items = models.ManyToManyField(Item, related_name='locations_all') #fixme: geo data lat_sw = models.FloatField(default=0) lng_sw = models.FloatField(default=0) lat_ne = models.FloatField(default=0) lng_ne = models.FloatField(default=0) lat_center = models.FloatField(default=0) lng_center = models.FloatField(default=0) area = models.FloatField(default=-1) class Meta: ordering = ('name', ) def __unicode__(self): return self.name def json(self): return self.name class ReviewWhitelist(models.Model): name = models.CharField(max_length=255, unique=True) url = models.CharField(max_length=255, unique=True) class List(models.Model): created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) user = models.ForeignKey(User) name = models.CharField(max_length=255, unique=True) public = models.BooleanField(default=False) items = models.ManyToManyField(Item, related_name='lists', through='ListItem') def add(self, item): q = self.items.filter(id=item.id) if q.count() == 0: l = ListItem() l.list = self l.item = item l.save() def remove(self, item): self.ListItem.objects.all().filter(item=item, list=self).delete() def __unicode__(self): return u'%s (%s)' % (self.title, unicode(self.user)) def editable(self, user): #FIXME: make permissions work if self.user == user or user.has_perm('Ox.admin'): return True return False class ListItem(models.Model): created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) list = models.ForeignKey(List) item = models.ForeignKey(Item) def __unicode__(self): return u'%s in %s' % (unicode(self.item), unicode(self.list)) class Layer(models.Model): #FIXME: here having a item,start index would be good created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) user = models.ForeignKey(User) item = models.ForeignKey(Item) #seconds start = models.FloatField(default=-1) stop = models.FloatField(default=-1) type = models.CharField(blank=True, max_length=255) value = models.TextField() #FIXME: relational layers, Locations, clips etc #location = models.ForeignKey('Location', default=None) def editable(self, user): if user.is_authenticated(): if obj.user == user.id or user.has_perm('0x.admin'): return True if user.groups.filter(id__in=obj.groups.all()).count() > 0: return True return False class Collection(models.Model): created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) users = models.ManyToManyField(User, related_name='collections') name = models.CharField(blank=True, max_length=2048) subdomain = models.CharField(unique=True, max_length=2048) items = models.ForeignKey(Item) def editable(self, user): return self.users.filter(id=user.id).count() > 0 def itemid_path(h): return os.path.join('items', h[:2], h[2:4], h[4:6], h[6:]) def stream_path(stream): return os.path.join(itemid_path(stream.item.itemId), stream.profile) class Stream(models.Model): class Meta: unique_together = ("item", "profile") item = models.ForeignKey(Item, related_name='streams') profile = models.CharField(max_length=255, default='96p.webm') video = models.FileField(default=None, blank=True, upload_to=lambda f, x: stream_path(f)) source = models.ForeignKey('Stream', related_name='derivatives', default=None, null=True) available = models.BooleanField(default=False) info = fields.DictField(default={}) #def __unicode__(self): # return self.video def extract_derivatives(self): if settings.VIDEO_H264: profile = self.profile.replace('.webm', '.mp4') derivative, created = Stream.objects.get_or_create(profile=profile, item=self.item) if created: derivative.source = self derivative.video.name = self.video.name.replace(self.profile, profile) derivative.encode() derivative.save() for p in settings.VIDEO_DERIVATIVES: profile = p + '.webm' target = self.video.path.replace(self.profile, profile) derivative, created = Stream.objects.get_or_create(profile=profile, item=self.item) if created: derivative.source = self derivative.video.name = self.video.name.replace(self.profile, profile) derivative.encode() derivative.save() if settings.VIDEO_H264: profile = p + '.mp4' derivative, created = Stream.objects.get_or_create(profile=profile, item=self.item) if created: derivative.source = self derivative.video.name = self.video.name.replace(self.profile, profile) derivative.encode() derivative.save() return True def encode(self): if self.source: video = self.source.video.path target = self.video.path profile = self.profile info = ox.avinfo(video) if extract.stream(video, target, profile, info): self.available=True self.save() def __unicode__(self): return u"%s (%s)" % (self.profile, self.item) def save(self, *args, **kwargs): if self.video and not self.info: self.info = ox.avinfo(self.video.path) super(Stream, self).save(*args, **kwargs) class PosterUrl(models.Model): class Meta: unique_together = ("item", "service", "url") ordering = ('-height', ) item = models.ForeignKey(Item, related_name='poster_urls') url = models.CharField(max_length=1024) service = models.CharField(max_length=1024) width = models.IntegerField(default=80) height = models.IntegerField(default=128) def __unicode__(self): return u'%s %s %dx%d' % (unicode(self.item), self.service, self.width, self.height)