pandora/pandora/item/models.py

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2009-06-08 16:08:59 +00:00
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division, with_statement
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from datetime import datetime
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import os.path
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import subprocess
from glob import glob
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import shutil
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import uuid
import unicodedata
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from urllib import quote
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from django.db import models
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from django.db.models import Sum
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from django.core.files.base import ContentFile
from django.utils import simplejson as json
from django.conf import settings
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from django.contrib.auth.models import User, Group
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from django.db.models.signals import pre_delete
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from django.contrib.sites.models import Site
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import ox
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from ox.django import fields
from ox.normalize import canonicalTitle
import ox.web.imdb
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import managers
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import utils
import tasks
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from archive import extract
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from annotation.models import Annotation, Layer
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from person.models import get_name_sort
from app.models import site_config
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def get_item(info, user=None):
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'''
info dict with:
imdbId, title, director, episode_title, season, series
'''
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if settings.USE_IMDB:
if 'imdbId' in info and info['imdbId']:
try:
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item = Item.objects.get(itemId=info['imdbId'])
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except Item.DoesNotExist:
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item = Item(itemId=info['imdbId'])
if 'title' in info and 'director' in info:
item.external_data = {
'title': info['title'],
'director': info['director'],
'year': info.get('year', '')
}
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item.user = user
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item.save()
tasks.update_external.delay(item.itemId)
else:
q = Item.objects.filter(find__key='title', find__value=info['title'])
if q.count() > 1:
print "FIXME: check more than title here!!?"
item = q[0]
else:
try:
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item = Item.objects.get(itemId=info['oxdbId'])
except Item.DoesNotExist:
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item = Item()
item.data = {
'title': info['title'],
'director': info['director'],
'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.data[key] = info[key]
try:
existing_item = Item.objects.get(oxdbId=item.oxdb_id())
item = existing_item
except Item.DoesNotExist:
item.save()
else:
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qs = Item.objects.filter(find__key='title', find__value=info['title'])
if qs.count() == 1:
item = qs[0]
else:
item = Item()
item.data = {
'title': info['title']
}
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item.user = user
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item.save()
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return item
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class Item(models.Model):
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
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published = models.DateTimeField(default=datetime.now, editable=False)
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user = models.ForeignKey(User, null=True, related_name='items')
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groups = models.ManyToManyField(Group, blank=True, related_name='items')
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#while metadata is updated, files are set to rendered=False
rendered = models.BooleanField(default=False, db_index=True)
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public = models.BooleanField(default=False, db_index=True)
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itemId = models.CharField(max_length=128, unique=True, blank=True)
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oxdbId = models.CharField(max_length=42, unique=True, blank=True, null=True)
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external_data = fields.DictField(default={}, editable=False)
data = fields.DictField(default={}, editable=False)
json = fields.DictField(default={}, editable=False)
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poster = models.ImageField(default=None, blank=True,
upload_to=lambda i, x: i.path("poster.jpg"))
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poster_url = models.TextField(blank=True)
poster_height = models.IntegerField(default=0)
poster_width = models.IntegerField(default=0)
poster_frame = models.FloatField(default=-1)
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icon = models.ImageField(default=None, blank=True,
upload_to=lambda i, x: i.path("icon.jpg"))
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torrent = models.FileField(default=None, blank=True,
upload_to=lambda i, x: i.path('torrent.torrent'))
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#stream related fields
stream_aspect = models.FloatField(default=4/3)
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objects = managers.ItemManager()
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def get(self, key, default=None):
if self.data and key in self.data:
return self.data[key]
if self.external_data and key in self.external_data:
return self.external_data[key]
return default
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def access(self, user):
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if self.public:
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return True
elif user.is_authenticated() and \
(user.is_staff or self.user == user or \
self.groups.filter(id__in=user.groups.all()).count() > 0):
return True
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return False
def editable(self, user):
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if user.is_staff or \
self.user == user or \
self.groups.filter(id__in=user.groups.all()).count() > 0:
return True
return False
def edit(self, data):
#FIXME: how to map the keys to the right place to write them to?
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if 'id' in data:
#FIXME: check if id is valid and exists and move/merge items accordingly
del data['id']
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if 'groups' in data:
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groups = data.pop('groups')
self.groups.exclude(name__in=groups).delete()
for g in groups:
group, created = Group.objects.get_or_create(name=g)
self.groups.add(group)
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for key in data:
if key != 'id':
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self.data[key] = data[key]
self.save()
def reviews(self):
reviews = self.get('reviews', [])
_reviews = {}
for r in reviews:
for url in settings.REVIEW_WHITELIST:
if url in r[0]:
_reviews[settings.REVIEW_WHITELIST[url]] = r[0]
return _reviews
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def update_external(self):
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if len(self.itemId) == 7:
data = ox.web.imdb.Imdb(self.itemId)
#FIXME: all this should be in ox.web.imdb.Imdb
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for key in ('directors', 'writers', 'editors', 'producers',
'cinematographers', 'languages', 'genres', 'keywords',
'episode_directors'):
if key in data:
data[key[:-1]] = data.pop(key)
if 'countries' in data:
data['country'] = data.pop('countries')
if 'release date' in data:
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data['releasedate'] = data.pop('release date')
if isinstance(data['releasedate'], list):
data['releasedate'] = min(data['releasedate'])
if 'plot' in data:
data['summary'] = data.pop('plot')
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if 'cast' in data:
if isinstance(data['cast'][0], basestring):
data['actor'] = [data['cast'][0]]
else:
data['actor'] = [c[0] for c in data['cast']]
data['actor'] = data['actor']
self.external_data = data
self.save()
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def __unicode__(self):
year = self.get('year')
if year:
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return u'%s (%s)' % (self.get('title', 'Untitled'), self.get('year'))
return self.get('title', u'Untitled')
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def get_absolute_url(self):
return '/%s' % self.itemId
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def save(self, *args, **kwargs):
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if not self.id:
if not self.itemId:
self.itemId = str(uuid.uuid1())
super(Item, self).save(*args, **kwargs)
if not settings.USE_IMDB:
self.itemId = ox.to32(self.id)
self.oxdbId = self.oxdb_id()
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if self.poster:
self.poster_height = self.poster.height
self.poster_width = self.poster.width
else:
self.poster_height = 128
self.poster_width = 80
self.update_find()
self.update_sort()
self.update_facets()
update_poster = False
if not settings.USE_IMDB:
if self.poster_frame == -1 and self.sort.duration:
self.poster_frame = self.sort.duration/2
update_poster = True
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if not self.get('runtime') and self.sort.duration:
self.data['runtime'] = self.sort.duration
self.update_sort()
self.json = self.get_json()
super(Item, self).save(*args, **kwargs)
if update_poster:
tasks.update_poster.delay(self.itemId)
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def delete_files(self):
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path = os.path.join(settings.MEDIA_ROOT, self.path())
if os.path.exists(path):
shutil.rmtree(path)
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def delete(self, *args, **kwargs):
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self.streams.all().delete()
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self.delete_files()
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super(Item, self).delete(*args, **kwargs)
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def merge_with(self, other):
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'''
move all related tables to other and delete self
'''
for l in self.lists.all():
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l.remove(self)
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if l.items.filter(id=other.id) == 0:
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l.add(other)
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#FIXME: should this really happen for annotations?
for a in self.annotations.all():
a.item = other
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if hasattr(self, 'files'):
for f in self.files.all():
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f.item = other
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f.save()
self.delete()
other.save()
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#FIXME: update poster, stills and streams after this
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def get_poster(self):
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poster = {}
poster['width'] = self.poster_width
poster['height'] = self.poster_height
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poster['url'] = '/%s/poster.jpg' % self.itemId
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'''
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if self.poster:
poster['url'] = self.poster.url
else:
poster['url'] = self.poster_url
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'''
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return poster
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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:
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#FIXME: media_url is no longer public
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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']
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if 'video' in s.info and s.info['video']:
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stream['aspectRatio'] = s.info['video'][0]['width'] / s.info['video'][0]['height']
else:
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stream['aspectRatio'] = 128/80
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if settings.XSENDFILE or settings.XACCELREDIRECT:
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stream['baseUrl'] = '/%s' % self.itemId
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else:
stream['baseUrl'] = os.path.dirname(s.video.url)
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stream['profiles'] = sorted(list(set(map(lambda s: int(os.path.splitext(s['profile'])[0][:-1]), self.streams.all().values('profile')))))
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stream['formats'] = list(set(map(lambda s: os.path.splitext(s['profile'])[1][1:], self.streams.all().values('profile'))))
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return stream
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def get_layers(self, user=None):
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layers = {}
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for l in Layer.objects.all():
ll = layers.setdefault(l.name, [])
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qs = Annotation.objects.filter(layer=l, item=self)
if l.private:
if user.is_anonymous():
user = None
qs = qs.filter(user=user)
for a in qs.order_by('start'):
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ll.append(a.json())
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return layers
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def get_json(self, fields=None):
i = {
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'id': self.itemId,
'rendered': self.rendered
}
i.update(self.external_data)
i.update(self.data)
for k in site_config()['itemKeys']:
key = k['id']
if key not in i:
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value = self.get(key)
#also get values from sort table, i.e. numberof values
if not value and self.sort and hasattr(self.sort, key):
value = getattr(self.sort, key)
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if value:
i[key] = value
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i['poster'] = self.get_poster()
i['posters'] = self.get_posters()
return i
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def oxdb_id(self):
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if not settings.USE_IMDB:
return self.itemId
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if not self.get('title') and not self.get('director'):
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return None
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return utils.oxdb_id(self.get('title', ''), self.get('director', []), str(self.get('year', '')),
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self.get('season', ''), self.get('episode', ''),
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self.get('episode_title', ''), self.get('episode_director', []), self.get('episode_year', ''))
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'''
Search related functions
'''
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def update_find(self):
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def save(key, value):
f, created = ItemFind.objects.get_or_create(item=self, key=key)
if value not in ('', ):
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if isinstance(value, basestring):
value = value.strip()
f.value = value
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f.save()
else:
f.delete()
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#FIXME: use site_config
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save('title', u'\n'.join([self.get('title', 'Untitled'),
self.get('original_title', '')]))
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for key in self.facet_keys:
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if key == 'character':
values = self.get('cast', '')
if values:
if isinstance(values[0], basestring):
values = [values[0], ]
else:
values = [i[1] for i in values]
else:
values = self.get(key, '')
if isinstance(values, list):
save(key, '\n'.join(values))
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else:
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save(key, values)
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save('summary', self.get('summary', ''))
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save('trivia', ' '.join(self.get('trivia', [])))
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#FIXME:
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qs = Annotation.objects.filter(layer__name='subtitles', item=self).order_by('start')
save('subtitles', '\n'.join([l.value for l in qs]))
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def update_sort(self):
try:
s = self.sort
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except ItemSort.DoesNotExist:
s = ItemSort(item=self)
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def sortNames(values):
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sort_value = u''
if values:
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sort_value = u'; '.join([get_name_sort(name) for name in values])
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if not sort_value:
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sort_value = u''
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return sort_value
def set_value(s, name, value):
if not value:
value = None
setattr(s, name, value)
base_keys = (
'id',
'aspectratio',
'duration',
'hue',
'saturation',
'lightness',
'volume',
'clips',
'cuts',
'cutsperminute',
'words',
'wordsperminute',
'resolution',
'pixels',
'size',
'bitrate',
'numberoffiles',
'published',
'modified',
'popularity',
)
for key in filter(lambda k: 'columnWidth' in k, config['itemKeys']):
name = key['id']
source = name
sort_type = key.get('sort', key['type'])
if 'value' in key:
if 'layer' in key['value']:
continue
source = key['value']['key']
sort_type = key['value'].get('type', sort_type)
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if name not in base_keys:
if sort_type == 'title':
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value = utils.sort_title(canonicalTitle(self.get(source, u'Untitled')))
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value = utils.sort_string(value)
set_value(s, name, value)
elif sort_type == 'person':
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value = sortNames(self.get(source, []))
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value = utils.sort_string(value)[:955]
set_value(s, name, value)
elif sort_type == 'string':
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value = self.get(source, u'')
if isinstance(value, list):
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value = u','.join(value)
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value = utils.sort_string(value)[:955]
set_value(s, name, value)
elif sort_type in ('length', 'integer', 'float'):
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#can be length of strings or length of arrays, i.e. keywords
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value = self.get(source)
if isinstance(value, list):
value = len(value)
set_value(s, name, value)
elif sort_type == 'words':
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value = self.get(source)
if isinstance(value, list):
value = '\n'.join(value)
if value:
value = len(value.split(' '))
set_value(s, name, value)
elif sort_type == 'year':
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value = self.get(source)
set_value(s, name, value)
elif sort_type == 'date':
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value = self.get(source)
if isinstance(value, basestring):
value = datetime.strptime(value, '%Y-%m-%d')
set_value(s, name, value)
#sort keys based on database, these will always be available
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s.itemId = self.itemId.replace('0x', 'xx')
s.modified = self.modified
s.published = self.published
# sort values based on data from videos
s.words = 0 #FIXME: get words from all layers or something
s.wordsperminute = 0
s.clips = 0 #FIXME: get clips from all layers or something
s.popularity = 0 #FIXME: get popularity from somewhere
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videos = self.main_videos()
if len(videos) > 0:
s.duration = sum([v.duration for v in videos])
s.resolution = videos[0].width * videos[0].height
s.aspectratio = int(1000 * utils.parse_decimal(v.display_aspect_ratio))
#FIXME: should be average over all files
if 'bitrate' in videos[0].info:
s.bitrate = videos[0].info['bitrate']
s.pixels = sum([v.pixels for v in videos])
s.numberoffiles = self.files.all().count()
s.size = sum([v.size for v in videos]) #FIXME: only size of movies?
s.volume = 0
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else:
s.duration = None
s.resolution = None
s.aspectratio = None
s.bitrate = None
s.pixels = None
s.filename = None
s.files = None
s.size = None
s.volume = None
if 'color' in self.data:
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s.hue, s.saturation, s.lightness = self.data['color']
else:
s.hue = None
s.saturation = None
s.brighness = None
s.cuts = len(self.data.get('cuts', []))
if s.duration:
s.cutsperminute = s.cuts / (s.duration/60)
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else:
s.cutsperminute = None
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s.popularity = self.accessed.aggregate(Sum('accessed'))['accessed__sum']
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s.save()
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def update_facets(self):
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#FIXME: what to do with Unkown Director, Year, Country etc.
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for key in self.facet_keys:
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current_values = self.get(key, [])
if not isinstance(current_values, list):
current_values = [unicode(current_values)]
current_values = list(set(current_values))
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saved_values = [i.value for i in Facet.objects.filter(item=self, key=key)]
removed_values = filter(lambda i: i not in current_values, saved_values)
if removed_values:
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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
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if key in self.person_keys:
value_sort = get_name_sort(value)
f = Facet(key=key, value=value, value_sort=value_sort)
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f.item = self
f.save()
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def path(self, name=''):
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h = self.itemId
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return os.path.join('items', h[:2], h[2:4], h[4:6], h[6:], name)
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'''
Video related functions
'''
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def frame(self, position, width=128):
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stream = self.streams.filter(profile=settings.VIDEO_PROFILE)
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if stream.count()>0:
stream = stream[0]
else:
return None
path = os.path.join(settings.MEDIA_ROOT, self.path(),
'frames', "%d"%width, "%s.jpg"%position)
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if not os.path.exists(path):
extract.frame(stream.video.path, path, position, width)
if not os.path.exists(path):
path = os.path.join(settings.STATIC_ROOT, 'png/frame.broken.png')
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return path
@property
def timeline_prefix(self):
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return os.path.join(settings.MEDIA_ROOT, self.path(), 'timeline')
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def main_videos(self):
#FIXME: needs to check if more than one user has main files and only
# take from "higher" user
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videos = self.files.filter(is_main=True, is_video=True, available=True, instances__gt=0).order_by('part')
if videos.count()>0:
first = videos[0]
user = first.instances.all()[0].volume.user
#only take videos from same user and with same width/height
def check(v):
if v.instances.filter(volume__user=user).count()>0 and \
first.width == v.width and first.height == v.height:
return True
return False
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videos = filter(check, videos)
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else:
audio = self.files.filter(is_main=True, is_audio=True, available=True)
if audio.count()>0:
first = audio[0]
user = first.instances.all()[0].volume.user
#only take videos from same user and with same width/height
def check(v):
if v.instances.filter(volume__user=user).count()>0:
return True
return False
videos = filter(check, audio)
return videos
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def make_torrent(self):
base = self.path('torrent')
base = os.path.abspath(os.path.join(settings.MEDIA_ROOT, base))
if os.path.exists(base):
shutil.rmtree(base)
os.makedirs(base)
base = self.path('torrent/%s' % self.get('title'))
base = os.path.abspath(os.path.join(settings.MEDIA_ROOT, base))
size = 0
duration = 0.0
if len(self.main_videos()) == 1:
url = "%s/torrent/%s.webm" % (self.get_absolute_url(),
quote(self.get('title').encode('utf-8')))
video = "%s.webm" % base
v = self.main_videos()[0]
os.symlink(v.video.path, video)
info = ox.avinfo(video)
size = info.get('size', 0)
duration = info.get('duration', 0.0)
else:
url = "%s/torrent/" % self.get_absolute_url()
part = 1
os.makedirs(base)
for v in self.main_videos():
video = "%s/%s.Part %d.webm" % (base, self.get('title'), part)
part += 1
os.symlink(v.video.path, video)
info = ox.avinfo(video)
size += info.get('size', 0)
duration += info.get('duration', 0.0)
video = base
torrent = '%s.torrent' % base
url = "http://%s%s" % (Site.objects.get_current().domain, url)
meta = {
'target': torrent,
'url-list': url,
}
if duration:
meta['playtime'] = ox.formatDuration(duration*1000)[:-4]
#slightly bigger torrent file but better for streaming
piece_size_pow2 = 15 #1 mbps -> 32KB pieces
if size / duration >= 1000000:
piece_size_pow2 = 16 #2 mbps -> 64KB pieces
meta['piece_size_pow2'] = piece_size_pow2
ox.torrent.createTorrent(video, settings.TRACKER_URL, meta)
self.torrent.name = self.path('torrent/%s.torrent' % self.get('title'))
self.save()
def update_streams(self):
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files = {}
for f in self.main_videos():
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files[utils.sort_title(f.name)] = f.video.path
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#FIXME: how to detect if something changed?
if files:
stream, created = Stream.objects.get_or_create(item=self,
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profile=settings.VIDEO_PROFILE)
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stream.video.name = stream.path()
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cmd = []
if os.path.exists(stream.video.path):
os.unlink(stream.video.path)
ox.makedirs(os.path.dirname(stream.video.path))
if len(files.values()) > 1:
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if len(files.values()) > 4:
print "FIXME: to many files for this item, not merging entire tv shows"
return
for f in sorted(files):
cmd.append('+')
cmd.append(files[f])
cmd = [ 'mkvmerge', '-o', stream.video.path ] + cmd[1:]
#print cmd
p = subprocess.Popen(cmd, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
#p = subprocess.Popen(cmd, stdin=subprocess.PIPE)
p.wait()
else:
os.symlink(files.values()[0], stream.video.path)
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stream.save()
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extract.timeline(stream.video.path, self.timeline_prefix)
if 'video' in stream.info and stream.info['video']:
v = stream.info['video'][0]
self.stream_aspect = v['width']/v['height']
self.data['cuts'] = extract.cuts(self.timeline_prefix)
self.data['color'] = extract.average_color(self.timeline_prefix)
#extract.timeline_strip(self, self.data['cuts'], stream.info, self.timeline_prefix[:-8])
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stream.extract_derivatives()
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self.make_local_posters()
self.make_poster()
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self.make_icon()
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self.rendered = True
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self.save()
'''
Poster related functions
'''
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def update_poster_urls(self):
_current = {}
for s in settings.POSTER_SERVICES:
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url = '%s?id=%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]:
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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()
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def delete_poster(self):
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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
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def make_poster(self, force=False):
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if not self.poster or force:
url = self.prefered_poster_url()
if url:
data = ox.net.readUrl(url)
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if force:
self.delete_poster()
self.poster.save('poster.jpg', ContentFile(data))
self.save()
else:
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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):
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part = 1
posters = {}
timeline = self.path('timeline.64.png')
timeline = os.path.abspath(os.path.join(settings.MEDIA_ROOT, timeline))
if not os.path.exists(timeline):
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path = self.path('poster.pandora.jpg')
path = os.path.abspath(os.path.join(settings.MEDIA_ROOT, path))
posters[path] = False
return posters
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if self.poster_frame >= 0:
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frame = self.get_poster_frame_path()
path = self.path('poster.pandora.%s.%s.jpg'%(part, self.poster_frame))
path = os.path.abspath(os.path.join(settings.MEDIA_ROOT, path))
posters[path] = frame
else:
for f in self.main_videos():
for frame in f.frames.all():
path = self.path('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()
timeline = self.path('timeline.64.png')
timeline = os.path.abspath(os.path.join(settings.MEDIA_ROOT, timeline))
ox.makedirs(os.path.join(settings.MEDIA_ROOT,self.path()))
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for poster in posters:
frame = posters[poster]
cmd = [settings.ITEM_POSTER,
'-t', self.get('title').encode('utf-8'),
'-d', u', '.join(self.get('director', ['Unknown Director'])).encode('utf-8'),
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'-y', str(self.get('year', '')),
'-p', poster
]
if frame:
cmd += [
'-f', frame,
'-l', timeline,
]
if settings.USE_IMDB:
if len(self.itemId) == 7:
cmd += ['-i', self.itemId]
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cmd += ['-o', self.oxdbId]
else:
cmd += ['-i', self.itemId]
p = subprocess.Popen(cmd)
p.wait()
return posters.keys()
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def get_poster_frame_path(self):
if self.poster_frame >= 0:
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size = int(settings.VIDEO_PROFILE.split('.')[0][:-1])
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return self.frame(self.poster_frame, size)
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frames = []
for f in self.main_videos():
for ff in f.frames.all():
frames.append(ff.frame.path)
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if frames:
return frames[int(len(frames)/2)]
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def make_icon(self):
frame = self.get_poster_frame_path()
if frame:
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icon = self.path('icon.jpg')
self.icon.name = icon
timeline = self.path('timeline.64.png')
timeline = os.path.abspath(os.path.join(settings.MEDIA_ROOT, timeline))
if os.path.exists(timeline):
cmd = [settings.ITEM_ICON,
'-f', frame,
'-l', timeline,
'-i', self.icon.path
]
p = subprocess.Popen(cmd)
p.wait()
self.save()
return icon
return None
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def delete_item(sender, **kwargs):
i = kwargs['instance']
i.delete_files()
pre_delete.connect(delete_item, sender=Item)
config = site_config()
Item.facet_keys = []
for key in config['itemKeys']:
if 'autocomplete' in key and not 'autocompleteSortKey' in key:
Item.facet_keys.append(key['id'])
Item.person_keys = []
for key in config['itemKeys']:
if 'sort' in key and key['sort'] == 'person':
Item.person_keys.append(key['id'])
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class ItemFind(models.Model):
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"""
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used to find items,
item.update_find populates this table
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its used in manager.ItemManager
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"""
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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)
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def __unicode__(self):
return u"%s=%s" % (self.key, self.value)
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'''
ItemSort
table constructed based on info in site_config['itemKeys']
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'''
attrs = {
'__module__': 'item.models',
'item': models.OneToOneField('Item', related_name='sort', primary_key=True),
}
for key in filter(lambda k: 'columnWidth' in k, config['itemKeys']):
name = key['id']
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name = {'id': 'itemId'}.get(name, name)
sort_type = key.get('sort', key['type'])
if isinstance(sort_type, list):
sort_type = sort_type[0]
model = {
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'char': (models.CharField, dict(null=True, max_length=1000, db_index=True)),
'year': (models.CharField, dict(null=True, max_length=4, db_index=True)),
'integer': (models.BigIntegerField, dict(null=True, blank=True, db_index=True)),
'float': (models.FloatField, dict(null=True, blank=True, db_index=True)),
'date': (models.DateTimeField, dict(null=True, blank=True, db_index=True))
}[{
'string': 'char',
'title': 'char',
'person': 'char',
'year': 'year',
'words': 'integer',
'length': 'integer',
'date': 'date',
'hue': 'float',
}.get(sort_type, sort_type)]
attrs[name] = model[0](**model[1])
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ItemSort = type('ItemSort', (models.Model,), attrs)
ItemSort.fields = [f.name for f in ItemSort._meta.fields]
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class Access(models.Model):
class Meta:
unique_together = ("item", "user")
access = models.DateTimeField(auto_now=True)
item = models.ForeignKey(Item, related_name='accessed')
user = models.ForeignKey(User, null=True, related_name='accessed_items')
accessed = models.IntegerField(default=0)
def save(self, *args, **kwargs):
if not self.accessed:
self.accessed = 0
self.accessed += 1
super(Access, self).save(*args, **kwargs)
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def __unicode__(self):
if self.user:
return u"%s/%s/%s" % (self.user, self.item, self.access)
return u"%s/%s" % (self.item, self.access)
class Facet(models.Model):
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'''
used for keys that can have multiple values like people, languages etc.
does not perform to well if total number of items goes above 10k
this happens for keywords in 0xdb right now
'''
class Meta:
unique_together = ("item", "key", "value")
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item = models.ForeignKey('Item', related_name='facets')
key = models.CharField(max_length=200, db_index=True)
value = models.CharField(max_length=200, db_index=True)
value_sort = models.CharField(max_length=200, db_index=True)
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def __unicode__(self):
return u"%s=%s" % (self.key, self.value)
def save(self, *args, **kwargs):
if not self.value_sort:
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self.value_sort = utils.sort_string(self.value)
super(Facet, self).save(*args, **kwargs)
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class Stream(models.Model):
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class Meta:
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unique_together = ("item", "profile")
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item = models.ForeignKey(Item, related_name='streams')
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profile = models.CharField(max_length=255, default='96p.webm')
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video = models.FileField(default=None, blank=True, upload_to=lambda f, x: f.path())
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source = models.ForeignKey('Stream', related_name='derivatives', default=None, null=True)
available = models.BooleanField(default=False)
info = fields.DictField(default={})
def __unicode__(self):
return u"%s/%s" % (self.item.itemId, self.profile)
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def path(self):
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return self.item.path(self.profile)
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def extract_derivatives(self):
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for profile in settings.VIDEO_DERIVATIVES:
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derivative, created = Stream.objects.get_or_create(profile=profile, item=self.item)
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if created:
derivative.source = self
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derivative.video.name = self.video.name.replace(self.profile, profile)
derivative.encode()
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derivative.save()
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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 save(self, *args, **kwargs):
if self.video and not self.info:
self.info = ox.avinfo(self.video.path)
super(Stream, self).save(*args, **kwargs)
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class PosterUrl(models.Model):
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class Meta:
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unique_together = ("item", "service", "url")
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ordering = ('-height', )
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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):
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return u'%s %s %dx%d' % (unicode(self.item), self.service, self.width, self.height)