src/archive/models.py

   1 # -*- coding: utf-8 -*-
   2 import os.path
   3
   4 from django.db import models
   5 from time import sleep
   6 from jsonfield.fields import JSONField
   7 from django.utils.encoding import force_bytes
   8 from django.utils.translation import ugettext_lazy as _
   9 from archive.constants import status
  10 from archive.settings import FILES_SAVE_PATH, ADVERT, LICENSE, ORGANIZATION, PROJECT
  11 from archive.utils import OverwriteStorage, sha1_file
  12
  13 # Create your models here.
  14
  15
  16 class Project(models.Model):
  17     """ an audiobook project, needed for specyfing sponsors """
  18
  19     name = models.CharField(max_length=128, unique=True, db_index=True, verbose_name="Nazwa")
  20     sponsors = models.TextField(blank=True, null=True, verbose_name="Sponsorzy")
  21
  22     class Meta:
  23         verbose_name = _("project")
  24         verbose_name_plural = _("projects")
  25         ordering = ("name",)
  26
  27     def __unicode__(self):
  28         return self.name
  29
  30
  31 def source_upload_to(intance, filename):
  32     return os.path.join(FILES_SAVE_PATH, filename) # FIXME: what about really long file names?
  33
  34
  35 class Audiobook(models.Model):
  36     source_file = models.FileField(upload_to=source_upload_to, max_length=255,
  37             verbose_name=_('source file'), editable=False)
  38     source_sha1 = models.CharField(max_length=40, editable=False)
  39
  40     title = models.CharField(max_length=255, verbose_name=_('title'))
  41     part_name = models.CharField(max_length=255, verbose_name=_('part name'), help_text=_('eg. chapter in a novel'),
  42                                  default='', blank=True)
  43     index = models.IntegerField(verbose_name=_('index'), default=0)
  44     parts_count = models.IntegerField(verbose_name=_('parts count'), default=1)
  45     artist = models.CharField(max_length=255, verbose_name=_('artist'))
  46     conductor = models.CharField(max_length=255, verbose_name=_('conductor'))
  47     encoded_by = models.CharField(max_length=255, verbose_name=_('encoded by'))
  48     date = models.CharField(max_length=255, verbose_name=_('date'))
  49     project = models.ForeignKey(Project, verbose_name=_('project'))
  50     url = models.URLField(max_length=255, verbose_name=_('book url'))
  51     translator = models.CharField(max_length=255, null=True, blank=True, verbose_name=_('translator'))
  52     modified = models.DateTimeField(null=True, editable=False)
  53
  54     # publishing process
  55     mp3_status = models.SmallIntegerField(null=True, editable=False, choices=status.choices)
  56     mp3_task = models.CharField(max_length=64, null=True, editable=False)
  57     mp3_tags = JSONField(null=True, editable=False)
  58     mp3_file = models.FileField(null=True, upload_to='archive/final', storage=OverwriteStorage(), editable=False)
  59     mp3_published_tags = JSONField(null=True, editable=False)
  60     mp3_published = models.DateTimeField(null=True, editable=False)
  61
  62     ogg_status = models.SmallIntegerField(null=True, editable=False, choices=status.choices)
  63     ogg_task = models.CharField(max_length=64, null=True, editable=False)
  64     ogg_tags = JSONField(null=True, editable=False)
  65     ogg_file = models.FileField(null=True, upload_to='archive/final', storage=OverwriteStorage(), editable=False)
  66     ogg_published_tags = JSONField(null=True, editable=False)
  67     ogg_published = models.DateTimeField(null=True, editable=False)
  68
  69
  70     class Meta:
  71         verbose_name = _("audiobook")
  72         verbose_name_plural = _("audiobooks")
  73         ordering = ("title",)
  74
  75     def __unicode__(self):
  76         return self.title
  77
  78     def published(self):
  79         return self.mp3_published and self.ogg_published
  80
  81     def get_source_sha1(self):
  82         source_sha1 = self.source_sha1
  83         if self.pk:
  84             source_sha1 = type(self).objects.get(pk=self.pk).source_sha1
  85             while source_sha1 == 'wait':
  86                 sleep(10)
  87         if not source_sha1:
  88             self.source_sha1 = 'wait'
  89             if self.pk:
  90                 type(self).objects.filter(pk=self.pk).update(source_sha1='wait')
  91             try:
  92                 f = open(force_bytes(self.source_file.path))
  93                 source_sha1 = sha1_file(f)
  94                 self.source_sha1 = source_sha1
  95                 if self.pk:
  96                     type(self).objects.filter(pk=self.pk).update(source_sha1=source_sha1)
  97             except:
  98                 self.source_sha1 = ''
  99                 if self.pk:
 100                     type(self).objects.filter(pk=self.pk).update(source_sha1='')
 101                 return None
 102         return source_sha1
 103
 104
 105     def new_publish_tags(self):
 106         title = self.title
 107         if self.translator:
 108             title += u' (tłum. %s)' % self.translator
 109
 110         copyright = u"%s %s. Licensed to the public under %s verify at %s" % (
 111                 self.date, ORGANIZATION, LICENSE, self.url)
 112
 113         comment = u"Audiobook nagrany w ramach projektu %s%s.\n%s" % (
 114                     self.project.name,
 115                     u" finansowanego przez %s" % self.project.sponsors if self.project.sponsors else "",
 116                     ADVERT)
 117
 118         tags = {
 119             'album': PROJECT,
 120             'albumartist': ORGANIZATION,
 121             'artist': self.artist,
 122             'comment': comment,
 123             'conductor': self.conductor,
 124             'contact': self.url,
 125             'copyright': copyright,
 126             'date': self.date,
 127             'genre': u'Speech',
 128             'language': u'pol',
 129             'license': LICENSE,
 130             'organization': ORGANIZATION,
 131             'title': title,
 132             #'flac_sha1': self.get_source_sha1(),
 133             'project': self.project.name,
 134             'funded_by': self.project.sponsors,
 135         }
 136         if self.source_sha1 and self.source_sha1 != 'wait':
 137             tags['flac_sha1'] = self.source_sha1
 138         return tags
 139